Planning and Zoning

705.01 Purpose 

Section 705 is adopted to: 

1. Protect, conserve, enhance, and maintain the natural, scenic, historical, agricultural, economic, and recreational qualities of lands along the Willamette River; 
2. Maintain the integrity of the Willamette River by minimizing erosion, promoting bank stability, and maintaining and enhancing water quality and fish and wildlife habitats; and 
3. Implement the Willamette River Design Plan set forth in Chapter 3 of the Comprehensive Plan. 

705.02 Definitions 

Unless specifically defined in Subsection 705.02, words or phrases used in Section 705 shall be interpreted to give them the same meaning as they have in common usage and to give Section 705 its most reasonable application. 

1. Change of Use:  Making a different use of the land or water which requires construction, alterations of the land, water, or other areas outside of existing structures and which substantially alters or affects the land or water. 
2. Develop:  To bring about growth or availability; to construct or alter a structure; to conduct a mining operation; to make a physical change in the use or appearance of land; to divide land into parcels; to create or terminate rights of access. 
3. Development:  The act, process, or result of developing.  
4. Intensification:  Any addition or action which increases or expands the area or amount of an existing use, or the level of activity, including remodeling the exterior of a structure if the remodeling substantially alters the appearance of the structure. 
5. Water-Dependent Use:  A use or activity that can be carried out only on, or adjacent to water areas because the use requires access to the water body for water borne transportation, recreation, energy production, or source of water. 

705.03 Area of Application 

Section 705 applies to development, change of use, or intensification of use on lands and water within the Willamette River Greenway, except: 

1. A change of use of a building or other structure which does not substantially alter or affect the land or water upon which it is situated; 
2. Landscaping, driveway construction, modifications of existing structures, and the construction or placement of subsidiary structures or facilities which are usual and necessary to the use and enjoyment of existing improvements; 
3. Changes, modifications, and other practices customarily related to those farm uses described in Section 401; 
4. Gravel removal from the bed of the Willamette River when conducted under a permit from the State of Oregon, and when compatible with the purposes stated in Subsection 705.01; 
5. Customary dredging and channel maintenance; 
6. The placing, by a public agency, of signs, workers, or aids to serve the public;   
7. Activities to protect, conserve, enhance, and maintain public recreational, scenic, historical, and natural uses on public lands; 
8. Acquisition and maintenance of scenic easements by the Oregon Parks and Recreation Department; and 
9. The partial harvest of timber beyond the vegetative fringes in areas not covered by a scenic easement when the harvest is consistent with an approved plan under the Oregon Forest Practices Act (OFPA).  If such activity is not covered by the OFPA, it shall be reviewed as a Type II application pursuant to Section 1307, to ensure consistency with the purposes stated in Subsection 705.01.  Commercial forest activities and harvesting practices shall provide for vegetation buffers and the intended shading, soil stabilizing, and water filtering effects required by the OFPA.   

705.04 Standards for Intensification, Change of Use, or Development Within the Willamette River Greenway 

All intensification, change of use, or development shall require a Willamette River Greenway (WRG) permit.  A WRG permit requires review as a Type II application pursuant to Section 1307 and shall be subject to the following standards and criteria: 

1. The request is consistent with the purposes stated in Subsection 705.01. 
2. Where necessary, public access has been provided by appropriate legal means to and along the river. 
3. The request will provide the maximum possible landscaped area, open space, or vegetation between the activity and the river.  The depth of this area need not exceed 150 feet. 
4. The request will result in the preservation of a buffer or filter strip of natural vegetation along the river bank.  The depth of this vegetative buffer or filter strip need not exceed 150 feet, and shall be determined by consideration of the following: 
   1. The character of the use or development;  
   2. The width of the river;   
   3. Steepness of the terrain;   
   4. Type and stability of the soil; and   
   5. The type and density of the existing vegetation.   
5. Structures shall observe a minimum setback between 100 and 150 feet from the mean low water level.  The setback shall be determined by evaluation of the criteria stated in Subsection 705.04.  Residential lots of record and water-dependent uses unable to meet this requirement shall be exempt from this setback. 
6. The maximum height of a dwelling or a structure accessory to a dwelling shall be 35 feet. 
7. Private noncommercial docks and boathouses shall be subject to the following standards, in addition to the other standards in Subsection 705.04: 
   1. General Provisions: 
      1. Private noncommercial docks, boathouses, and pilings shall either be dark natural wood colors, or painted dark earth tones (dark brown or green). 
      2. The square footage of docks and boathouses is measured as the length times the width of the outer edge of the structure. 
      3. The length-to-width ratio of a private noncommercial dock shall not exceed 3:1. 
      4. Only one dock and boathouse is allowed per riverfront lot of record.   
   2. Oregon City Falls to Multnomah County line: 
      1. Private noncommercial docks shall not exceed 400 square feet.   
      2. Private boathouses are prohibited.   
   3. Oregon City Falls to Marion County line: 
      1. Private noncommercial docks shall not exceed 700 square feet.   
      2. Private noncommercial boathouses shall not exceed 500 square feet.   
      3. Private noncommercial boathouses shall not exceed 12 feet in height, measured from the platform of the dock to the roof peak.   
   4. All docks located on state-owned submerged and/or submersible land must be leased or registered with the Oregon Division of State Lands, according to state law. 

705.05 Prohibited Uses 

The following uses are prohibited in the Willamette River Greenway (WRG):  

1. Low head hydroelectric dam facilities, which adversely impact fisheries or the scenic and water quality of the river; and 
2. Private noncommercial docks and moorages in the limited use rural portions of the WRG identified on Comprehensive Plan Map III-1e, Willamette River Greenway Design Plan. 

705.06 Submittal Requirements 

In addition to the submittal requirements identified in Subsection 1307.07(C), an application for a Willamette River Greenway permit shall include:   

1. A site plan showing existing vegetation and development, and locations of proposed development or activity;   
2. Elevations of any proposed structures;   
3. Exterior materials list for any proposed structures, including type and colors of siding and roofing; and   
4. Cross section of any area within the vegetative buffer or filter strip where grading, filling, or excavating will occur.   

705.07 Approval Period and Time Extension 

1. Approval of a WRG permit is valid for four years from the date of the final written decision.  If the County's final written decision is appealed, the approval period shall commence on the date of the final appellate decision.  During this four-year period, the approval shall be implemented, or the approval will become void. 
   1. "Implemented" means all major development permits shall be obtained and maintained, or if no major development permits are required to complete the development contemplated by the approved WRG permit, "implemented" means all other necessary County development permits (e.g. grading permit, building permit for an accessory structure) shall be obtained and maintained.  A "major development permit" is: 
      1. A building or manufactured dwelling placement permit for a new primary structure that was part of the WRG permit approval; or 
      2. A permit issued by the County Engineering Division for parking lot or road improvements that were part of the WRG permit approval. 
2. If the approval of a WRG permit is not implemented within the initial approval period established by Subsection 705.07(B), a two-year time extension may be approved pursuant to Section 1310. 

[Amended by Ord. ZDO-230, 9/26/11; Amended by Ord. ZDO-248, 10/13/14] 

Ordinance ZDO-293, Minor and Time Sensitive Comprehensive Plan and ZDO Amendments proposes amendments to the county’s Comprehensive Plan and Zoning & Development Ordinance (ZDO) that are intended to accomplish the following five actions:

1. Implement state mandates, which were adopted through legislation or administrative rulemaking, that are currently in effect or will become effective by July 1, 2026; 
2. Align the County’s requirements in Agriculture and Forest zones with state law; 
3. Amend certain height limit and dock prohibition standards within the Willamette River Greenway (WRG);
4. Clarify how to identify front, rear, and side lot lines for the purpose of structure setback measurement; and 
5. Make minor changes to the Comprehensive Plan and ZDO clarify provisions, reduce administrative barriers, and correct citations and typographical errors. 

A summary of the changes proposed for each section of the Comprehensive Plan and the ZDO are included below. To obtain emailed or printed copies of the full text of the proposed amendments, please contact Planning & Zoning at 503-742-4500 or zoninginfo@clackamas.us.

• ZDO-293 Notice of Proposed Amendments
• COMP PLAN CH3 Summary
• ZDO 202 Summary
• ZDO 315 Summary
• ZDO 316 Summary
• ZDO 401 Summary
• ZDO 406 Summary
• ZDO 407 Summary
• ZDO 510 Summary
• ZDO 511 Summary
• ZDO 512 Summary
• ZDO 602 Summary
• ZDO 703 Summary
• ZDO 704 Summary
• ZDO 705 Summary
• ZDO 706 Summary
• ZDO 709 Summary
• ZDO 710 Summary
• ZDO 712 Summary
• ZDO 713 Summary
• ZDO 804 Summary
• ZDO 806 Summary
• ZDO 837 Summary
• ZDO 839 Summary
• ZDO 840 Summary
• ZDO 841 Summary
• ZDO 845 Summary
• ZDO 848 Summary
• ZDO 849 Summary
• ZDO 903 Summary
• ZDO 1005 Summary
• ZDO 1009 Summary
• ZDO 1010 Summary
• ZDO 1015 Summary
• ZDO 1102 Summary
• ZDO 1103 Summary
• ZDO 1105 Summary
• ZDO 1107 Summary
• ZDO 1203 Summary
• ZDO 1205 Summary
• ZDO 1206 Summary
• ZDO 1307 Summary
• ZDO 1309 Summary
• ZDO 1310 Summary

Notice of Land Use Public Hearings

for Community Planning Organizations, Hamlets, and Other Interested Parties

Subject: Ordinance ZDO-293: Minor and Time Sensitive Comprehensive Plan and ZDO Amendments FY2026 

Notice Date: April 6, 2026

Contact: Martha Fritzie, Principal Planner
150 Beavercreek Road, Oregon City, OR 97045
Phone: 503-742-4529
Email: mfritzie@clackamas.us

Minor and Time-Sensitive Comprehensive Plan and ZDO Amendments is a Planning project that is intended to be completed annually and focuses on relatively minor changes to the County’s Comprehensive Plan and Zoning and Development Ordinance (ZDO) that are necessary to comply with any new state and federal mandates, clarify existing language, correct errors, or adopt optional provisions that require only minimal analysis.

Ordinance ZDO-293 includes the minor and time sensitive amendments for fiscal year 2026 (FY22026) and proposes changes to one chapter of the Comprehensive Plan and 36 sections of the ZDO; the repeal of one ZDO section; and the addition of two new ZDO sections, in order to accomplish the following five actions:

1. Implement state mandates, which were adopted through legislation or administrative rulemaking, that are currently in effect or will become effective by July 1, 2026;
2. Align the County’s requirements in Agriculture and Forest zones with state law;
3. Amend certain height limit and dock prohibition standards within the Willamette River Greenway (WRG);
4. Clarify how to identify front, rear, and side lot lines for the purpose of structure setback measurement; and
5. Make minor changes to the Comprehensive Plan and ZDO clarify provisions, reduce administrative barriers, and correct citations and typographical errors. 

The Planning Commission and Board of County Commissioners have scheduled hearings to receive testimony from the public and other interested parties on the proposed amendments. Because the amendments may affect your community or area of interest, we are giving you and your organization advance notice of the opportunity to review and comment on them before or at the public hearings.

A summary of the amendments proposed for each section of the ZDO will be available online. To obtain emailed or printed copies of the full text of the proposed amendments, please contact Planning & Zoning at 503-742-4500 or zoninginfo@clackamas.us.

Public Hearings and Testimony

Interested parties are welcome to provide testimony in advance of or at the hearings listed below. The Planning Commission public hearings are held virtually using the Zoom platform. The Board of County Commissioners public hearings are held both in-person and virtually using the Zoom platform. One week before the hearing dates, a Zoom link to the public hearing and details on how to observe and testify will be posted at the hearing web address.

Public Hearing Dates and Times:

• Planning Commission: 6:30 p.m., Monday, May 11, 2026
• Board of County Commissioners: 11:00 a.m., Tuesday, June 16, 2026
  BCC Hearing Room (4th Floor), 2051 Kaen Rd, Oregon City, 97045

Written testimony may be submitted before the hearings to Martha Fritzie at mfritzie@clackamas.us or 150 Beavercreek Road, Oregon City, OR 97045.

• Written testimony received by 4 p.m., Wednesday, April 29, 2026, will be included in the information packet provided to the Planning Commission one week before its scheduled hearing; written testimony received after that time and before 10 a.m., Monday, May 11, 2026, will be emailed to the Planning Commission before the hearing. If the Planning Commission continues the May 11th hearing, additional testimony submittal deadlines will be identified at that hearing.
• Written testimony received by 4 p.m., Monday, June 1, 2026, will be included in the information packet provided to the Board of County Commissioners (BCC) one week before its scheduled hearing; written testimony received after that time and before 4 p.m., Monday, June 15, 2026, will be emailed to the BCC before the hearing. If the BCC continues the June 16th hearing, additional testimony submittal deadlines will be identified at that hearing.

Interested parties who want to present verbal testimony at either hearing will be asked to sign up and/or indicate their interest in testifying at the beginning of the hearing.

Overview of Proposed Amendments

Ordinance ZDO-293 proposes changes to accomplish the following five actions.

1. Implement state mandates, which were adopted through legislation or administrative rulemaking, that are currently in effect or will become effective by July 1, 2026. 
   Generally, these mandates relate to urban housing (procedural and substantive changes); on-site parking in the urban area; and requirements to allow certain uses outright, including childcare centers, emergency shelters, residential treatment facilities and homes, mental and psychiatric hospitals, and crisis stabilization centers. Many of these changes would be limited to the urban area. 
   ZDO-293 includes amendments to include these mandatory items in the county’s ZDO, including:
   • Amending the Middle Housing Land Division (MHLD) process to allow shared water/wastewater facilities; allow a MHLD before, during and after middle housing building permits; and offer concurrent review of MHLD and partition/ subdivision; and
   • Amending the Expedited Land Division (ELD) process to reflect new requirements for no public notice; no public hearing; no allowance for any party to intervene in opposition; and that the applicant is the only party required to receive Notice of Decision and eligible to appeal.
   • Ensuring certain housing developments with Include 20 or more units of new single-family dwellings, manufactured dwellings, or middle housing within the Portland Metro urban growth boundary (UGB) are not subject to certain design standards related to such features as façade materials; roof decorations, form, or materials; or other architectural features.
   • Allowing for an applicant of a housing application within the UGB to “opt in” to new standards if they have become effective after application was submitted, if public notice has not been issued
   • Including standards for a new applicant type, called an “urban housing application”, for a residential zone change, planned unit development or variance. The process for this application would include notice to property owners within 300 feet and a comment window of 14 days, but limited appeal rights.
   • Including standards for another new application type that applies to housing applications in certain urban and rural areas that are reviewed under only clear & objective standards. The process for this application also requires property owners and only the applicant may appeal a decision to the Land Use Board of Appeals.
   • Allowing childcare facilities in farm zones, subject to certain criteria related to serving children in rural areas and must collocate with community center or school
   • Allowing by right certain specific uses and, where necessary, including a new definition to the ZDO for the specified use, including
     • A residential treatment facility or residential home within a UGB on certain publicly-owned lands and lands zoned for residential commercial, employment, and industrial uses.
     • A mental or psychiatric hospital and adjacent crisis stabilization center within a UGB on certain commercial, industrial or publicly-owned lands.
     • A preschool or pre-kindergarten with place of worship (does not apply if place of worship is a nonconforming use)
     • An emergency shelter that meet certain defined criteria within a UGB. This requirement sunsets if the most recently completed point-in-time count indicates the total sheltered and unsheltered homeless population is less than 0.18 percent of the state population
     • A childcare center in multifamily residential, commercial, and light industrial zones.
   • Implementing changes related to parking and parking lots within the UGB that are currently in effect but are being administered directly from state law. ZDO-293 would include the amendments necessary to implement the parking rules through the ZDO, which will reduce confusion for applicants and make administration more efficient for staff. These amendments would apply to property in urban zones within the UGB and generally include the following:
   • Removal of references to minimum off-street parking requirements
   • Amended off-street parking maximums for certain locations
   • New tree canopy and other design standards for parking lots > 0.5 acre.
2. Align the County’s requirements in Agriculture and Forest zones with state law. 
   Ordinance ZDO-293 includes proposed amendments resulting from an audit of the Exclusive Farm Use, Timber and Ag/Forest zones to ensure they are consistent with, and no more restrictive than, state law. The proposal would:
   • Remove references to State Wildfire Map that was repealed in 2025 (also affects some rural residential lands)
   • Remove extensive table of uses and replace with a statement that uses permitted in the AG/F District are those allowed in the EFU District, subject to standards in the EFU District, and those allowed in the TBR District, subject to the standards in the TBR District, and subject to certain limitations. This is not a substantive change, rather it is proposed for clarity and to ensure that future code amendments do not inadvertently create inconsistency between Ag/F and EFU and TBR.
   • Reorganize some standards to be more consistent with structure in state law to make future amendments easier.
   • Incorporate amendments from recent state rulemaking that codified certain common law standards related to
   • Farm impacts test analyses
   • Agri-tourism events standards
   • Transportation facilities subject to farm impacts test
   • Private park definition and clarifications
3. Amend certain height limit and dock prohibition standards within the Willamette River Greenway (WRG). The Willamette River Greenway (WRG), established through Statewide Planning Goal 15, is a corridor of water and land in which development is planned and built with recognition of the unique qualities of the Willamette River. Ordinance ZDO-293 proposed two specific amendments within the WRG.
   • Repeal an unnecessary dock prohibition affecting certain areas of the WRG. There are two stretches of the Willamette River – called Limited Use areas - in which new private non-commercial docks are prohibited.
     However, based on an analysis of lots, existing dwellings, and existing docks within the two Limited Use areas, staff have found that all but three of the lots within the Limited Use areas that have river frontage and a dwelling already have a dock, and that none of the vacant lots with river frontage in the Limited Use areas are zoned for residential development. In addition, there is no state requirement to prohibit docks anywhere on the river and there is no basis or evidence in the county’s records to warrant the dock prohibition.
     Ordinance ZDO-293 would repeal the prohibition on new docks in the Limited Use area and allow private, non-commercial docks to be established as an accessory use, subject to the same standards and processes as such docks elsewhere on the river.
   • Remove the 35-foot height limit for properties located within the WRG and designated as High Density Residential (HDR). Currently the ZDO limits the height for all residential development within the WRG boundary to 35 feet. Inside the UGB, the vast majority of residential lots within the WRG boundary are in a low-density residential designation, which has a height limit of 35 feet for development even outside the WRG. There are, however, a limited number of lots within the WRG that have a High Density Residential (HDR) zoning designation The HDR zoning district is intended for multifamily development; currently has a maximum allowed density of 25 dwelling units per acre; and has no specified height limit outside the WRG.
     A property owner within the WRG requested the county consider removing the 35-foot height limit so that more housing could be developed. Ordinance ZDO-293 includes this consideration and would remove the 35-foot height limit for lots within the WRG that are also within the HDR zoning district.
4. Clarify how to identify front, rear, and side lot lines for the purpose of structure setback measurement. The way that setbacks are reviewed has not changed substantially since the ZDO was adopted in 1980. At that time, the shape and dimensions of lots were strictly controlled, which allowed for a relatively rigid set of setback rules. Since then, however, many of the standards controlling lot shape and dimensions have been repealed, nonconforming lots are no longer required to be consolidated, new access and life safety requirements outside the ZDO have changed the way developments are constructed, and changes to state and local rules regarding infill development have resulted in lot configuration and development that was not contemplated when the 1980 ZDO was drafted. As a result, the current setback rules sometimes create conflicts and confusion when applied to certain lots.
   The proposal under ZDO-293 will not change required setback distances. Rather it seeks to clarify how the front lot line is identified for setback purposes, thereby addressing some of the most common administrative challenges identified by staff, including:
   • Private access easements
   • Fire turnarounds
   • Unusual flag lots
   • Rounded and “unintentional” corner lots
     Ordinance ZDO-293 includes amendments to provide these clarifications.
5. Make minor changes to the Comprehensive Plan and ZDO clarify provisions, reduce administrative barriers, and correct citations and typographical errors. 
   • Remove references to a zoning district that has been repealed.
   • Remove the limit on refiling applications, which requires staff to make a determination about whether the application is “substantially similar” to the previous application.
   • Remove option for a two-year time extension for most land use applications and extend the approval period for those application by two years to reduce administrative burdens on both applicants and staff. Time extensions in EFU, AG/F, and TBR Districts will remain, pursuant to relevant state law requirements.
   • Revise an outdated provision required by the Metro Code.
   • Clarify provisions that routinely cause confusion for staff and customers.
   • Correct citations and typographical errors.

Additional Information and Staff Report

• For general Planning & Zoning information
• For additional information about ZDO-293 and its public hearings (and for a copy of the staff report available May 4, 2026)

or

• Martha Fritzie, 503-742-4529, mfritzie@clackamas.us

or

• Planning & Zoning Customer Service, 503-742-4500, zoninginfo@clackamas.us

Clackamas County is committed to providing meaningful access and will make reasonable accommodations, modifications, or provide translation, interpretation or other services upon request. Please contact us at 503-742-4545 or email DRenhard@clackamas.us.

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Summary of Proposed Amendments to Comprehensive Plan Chapter 3, Natural Resources and Energy

1. Remove policy prohibiting docks in Limited Use area of Willamette River Greenway 
2. Amend policy to allow for residential buildings in a high density residential designation within the Willamette River Greenway to exceed 35 feet in height.  

Summary of Proposed Amendments to Section 202, Definitions

1. Amend definitions of Child Care Facility, Family Child Care Home and add definition of Child Care Center, pursuant to HB 3109[2021] and HB 3560[2025]. 
2. Add definition of Residential Treatment Facility and Residential Treatment Home, pursuant to HB 2005 [2025] 
3. Clarify that an Access Drive serves exactly two lots or parcels.
4. Clarify that a lot within the curve of a single road where the curve contains multiple radii is not a corner lot.
5. Clarify provisions related to triangular shaped lots apply to lots with only three lot lines, or lots that front on curved streets with only two other lot lines.
6. Clarify that emergency vehicle turnaround and pullout areas that are contained within easements across private properties should be considered side lot lines when measuring setbacks, unless motor vehicle access to the subject property also crosses the emergency vehicle turnaround and pullout area.
7. Clarify definition of Lot Line, Rear to address situations where a lot has a limited extent of front lot line.
8. Amend definition of Building Line to address corner lots, through lots, and lots where the building is not constructed exactly parallel to the front lot line. 
9. Add definitions for Private Street and Internal Street.
10. Amend definition of Property Line Adjustment to reflect past practice of allowing multiple line segments of a single boundary to be adjusted with one application.
11. Add definition of Boundary Line.
12. Add definition of Parking Area, Motor Vehicle.
13. Add definitions for Driveway, Drive Aisle, and Internal Street.
14. Amend definition of Lot Area or Lot Size to allow property owners to measure to road centerlines along their frontage(s) in areas with Comprehensive Plan designations of Rural, Agriculture, or Forest. 
15. Remove definitions for terms no longer used in the ZDO and make other clarifying edits.

Summary of Proposed Amendments to Section 315, Urban Low Density Residential (R-2.5, R-5, R-7, R-8.5, R-10, R-15, R-20, and R-30), Village Standard Lot Residential (VR-5/7), Village Small Lot Residential (VR-4/5), Village Townhouse (VTH), Planned Medium Density Residential (PMD), Medium Density Residential (MR-1), Medium High Density Residential (MR-2), High Density Residential (HDR), Village Apartment (VA), Special High Density Residential (SHD), and Regional Center High Density Residential (RCHDR) Districts

1. Allow child care centers as primary use in all urban residential zones that allow at least 17 dwelling units per acre and allow child care centers as primary use in all urban residential zones if collocated with certain types of institutional uses, as required by HB 3109[2021] and HB 3560[2025].
2. Allow emergency shelter to be sited in all urban residential zones, if standards in new Section 848 are met, including specific requirements for the entity that must operate the shelter. May not be sited within regulated hazard areas and allowance will sunset if state homeless population is less than 0.18% of total state population, as required by ORS 197.782 – 783. 
3. Allow residential treatment facilities and residential treatment homes as a primary use in all residential zones, subject to standards in new Section 849, as required by HB 2005 [2025].
4. Exempt developments with 20 or more dwelling units from the building design standards in Table 315-2 and Table 315-3, as required by SB 974[2025].

Summary of Proposed Amendments to Section 316, Rural Area Residential 1-Acre (RA-1), Rural Area Residential 2-Acre (RA-2), Recreational Residential (RR), Rural Residential Farm Forest 5-Acre (RRFF-5), Farm Forest 10-Acre (FF-10), and Future Urban 10-Acre (FU-10) Districts

1. Allow child care centers as primary if located within the Portland Metro Urban Growth Boundary (PMUGB) and collocated with certain institutional uses, as required by HB 3109[2021] and HB 3560[2025].
2. Add “NA” notation in Table 316-1 to clarify where certain listed uses are not applicable to a particular zoning district. 

Summary of Proposed Amendments to Section 401, Exclusive Farm Use District (EFU)

1. As allowed by new legislation, allow “child care facilities, preschool recorded programs or school-age recorded programs” for children of residents and workers of the rural area in which the facility or program is located and provided the use must collocate with a community center or school.
2. Numerous edits for consistency with requirements of state law.
3. Amend notations in Table 401-1, Permitted Uses in the EFU District, to be more consistent with notations in the tables of uses for other zoning districts in the ZDO.
4. Move some of the approval criteria from Subsection 401.05 to Table 401-1.
5. Update for consistency with Oregon Administrative Rule amendments that became effective in January 2025. Amendments pertain to the analysis required for the farm/forest impacts test, tax return transcript requirement for permits that are dependent on demonstrating farm income, limits on certain home occupations, agri-tourism-related definitions, the definition of “private park,” and clarifying which transportation uses are subject to the farm/forest impacts test.  
6. To conform to state legislation from 2025, repeal the fire hardening construction standards for replacement dwellings. 
7. Repeal the “capability test” farm dwelling provisions because the county has not prepared the required gross sales figures. If this work is completed, the provisions can be added back, but currently they create confusion for staff and the public.
8. Add land division allowances from state law that are not currently in the ZDO.
9. Move the site plan submittal requirement to Section 1307.
10. Amend the approval periods for various types of land use applications for consistency with state regulations.

Summary of Proposed Amendments to Section 406, Timber District (TBR)

1. Delete redundant definitions.
2. Amend notations in Table 406-1, Permitted Uses in the TBR District, to be more consistent with notations in the tables of uses for other zoning districts in the ZDO.
3. Move some of the approval criteria from Subsection 406.05 to Table 406-1.
4. To conform to state legislation from 2025, repeal the fire hardening construction standards for replacement dwellings.
5. Resolve inconsistency with state regulations by removing the dates that limit the applicability of various siting standards for new structures.
6. Resolve inconsistency with state regulations by adding a tree stocking requirement as a condition of approval applicable to new dwellings. It appears this provision was inadvertently removed from the ZDO in 2012.
7. Move the site plan submittal requirement to Section 1307.
8. Amend the approval periods for various types of land use applications for consistency with state regulations.

Summary of Proposed Amendments to Section 407, Ag/Forest District (AG/F) 

1. Remove extensive table of uses and references to certain land use processes and replace with a statement that uses permitted in the AG/F District are those allowed in the EFU District, subject to Section 401, Exclusive Farm Use District (EFU), and those allowed in the TBR District, subject to Section 406, Timber District (TBR), subject to certain limitations. If a use is allowed in both TBR and EFU, subject to different standards, both sets of regulations apply, and any conflicts result in application of the more restrictive standard. This is not a substantive change; rather, it is proposed for clarity and consistency with state law. It is also intended to create greater efficiency for future code amendments by minimizing the potential for inadvertently creating inconsistencies between the AG/F table of allowed uses and those in the EFU and TBR code sections.

Summary of Proposed Amendments to Section 510, Neighborhood Commercial (NC), Community Commercial (C-2), Regional Center Commercial (RCC), Retail Commercial (RTL), Corridor Commercial (CC), General Commercial (c-3), Planned Mixed Use (PMU), Station Community Mixed Use (SCMU), Office Apartment (OA), Office Commercial (OC), and Regional Center Office (RCO) Districts

1. Allow child care centers as primary use in all commercial zones, as required by HB 3109[2021] and HB 3560[2025].
2. Allow emergency shelter to be sited in all commercial zones, if standards in new Section 848 are met, including specific requirements for the entity that must operate the shelter. May not be sited within regulated hazard areas and allowance will sunset if state homeless population is less than 0.18% of total state population, as required by ORS 197.782 – 783.
3. Allow residential treatment facilities and residential treatment homes as a primary use in all commercial zones, subject to standards in new Section 849, as required by HB 2005 [2025].
4. Allow mental or psychiatric hospitals as a primary use in all commercial zones, only if located adjacent to crisis stabilization center. Allow crisis stabilization center as primary use in all commercial zones use on publicly-owned land, only if located adjacent to a mental or psychiatric hospital. These uses are required subject to standards in new Section 849 (HB 2005 [2025]).
5. Add “single room occupancies” as an allowed dwelling type in all commercial zones that currently allow multifamily dwellings to be consistent with allowances in multifamily residential zones.

Summary of Proposed Amendments to Section 511, Village Community Service District (VCS)

1. Replace “child care facilities” with “child care centers”
2. Allow emergency shelter to be sited, if standards in new Section 848 are met, including specific requirements for the entity that must operate the shelter. May not be sited within regulated hazard areas and allowance will sunset if state homeless population is less than 0.18% of total state population, as required by ORS 197.782 – 783. 
3. Allow residential treatment facilities and residential treatment homes as a primary use, subject to standards in new Section 849, as required by HB 2005 [2025].
4. Allow mental or psychiatric hospitals as a primary use, only if located adjacent to crisis stabilization center. Allow crisis stabilization center as primary use on publicly-owned land, only if located adjacent to a mental or psychiatric hospital. These uses are required subject to standards in new Section 849 (HB 2005 [2025]).

Summary of Proposed Amendments to Section 512, Village Office District (VO)

1. Allow child care centers as primary use, pursuant to HB 3109[2021] and HB 3560[2025].
2. Allow emergency shelter to be sited, if standards in new Section 848 are met, including specific requirements for the entity that must operate the shelter. May not be sited within regulated hazard areas and allowance will sunset if state homeless population is less than 0.18% of total state population, as required by ORS 197.782 – 783. 
3. Allow residential treatment facilities and residential treatment homes as a primary use, subject to standards in new Section 849, as required by HB 2005 [2025].
4. Allow mental or psychiatric hospitals as a primary use, only if located adjacent to crisis stabilization center. Allow crisis stabilization center as primary use on publicly-owned land, only if located adjacent to a mental or psychiatric hospital. These uses are required subject to standards in new Section 849 (HB 2005 [2025]).

Summary of Proposed Amendments to Section 602, Business Park, Light Industrial, and General Industrial Districts (BP, LI and GI)

1. Allow child care centers as primary use in LI and BP zones, as required by HB 3109[2021] and HB 3560[2025].
2. Allow emergency shelter to be sited in all industrial zones, if standards in new Section 848 are met, including specific requirements for the entity that must operate the shelter. May not be sited within regulated hazard areas and allowance will sunset if state homeless population is less than 0.18% of total state population. (ORS 197.782 – 783) 
3. Allow residential treatment facilities and residential treatment homes as a primary use in LI and BP zones, subject to standards in new Section 849 (HB 2005 [2025]).
4. Allow mental or psychiatric hospitals as a primary use in all industrial zones, only if located adjacent to crisis stabilization center. Allow crisis stabilization center as primary use in all industrial zones use on publicly-owned land, only if located adjacent to a mental or psychiatric hospital. These uses are required subject to standards in new Section 849 (HB 2005 [2025]).
5. Ensure setbacks for a silo, tower, or other specialized storage or processing structure located outside of a building in the BP 0r LI zone are consistent with such structures in the GI zone.

Summary of Proposed Amendments to Section 703, Floodplain Management District (FMD)

1. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension. 
2. Correct citation.

Summary of Proposed Amendments to Section 704, River and Stream Conservation Area (RSCA)

1. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension. 

Summary of Proposed Amendments to Section 705, Willamette River Greenway (WRG)

1. Remove the 35-foot height limit for residential buildings in the High Density Residential (HDR) District.
2. Add clarification on how to measure dock and boathouse area.
3. Remove the prohibition on private noncommercial docks and moorages in the Limited Use rural portions of the WRG identified on Comprehensive Plan Map 3-1e, Willamette River Greenway Design Plan.
4. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension. 

Summary of Proposed Amendments to Section 706, Habitat Conservation Area District (HCAD)

1. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension. 
2. Correct citation.

Summary of Proposed Amendments to Section 709, Water Quality Resource Area District (WQRAD)

1. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension. 

Summary of Proposed Amendments to Section 710, Sensitive Bird Habitat District (SBH)

1. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension. 

Summary of Proposed Amendments to Section 712, Private Use Airport and Safety Overlay Zone

1. Clarify date for establishing current level of activity that may be continued.  
2. Clarify that procedure for review of other (non-airport related uses) requires a Type II application.
3. Correct citations and references.

Summary of Proposed Amendments to Section 713, Public Use Airport and Safety Overlay Zone

1. Clarify date for establishing current level of activity that may be continued. 
2. Remove definition of “public assembly facility,” a term that is not used anywhere in the ZDO.
3. Remove redundant reference to the need to comply with the section.
4. Clarify that procedure for review of other (non-airport related uses) requires a Type II application.
5. Correct citations and references.

Summary of Proposed Amendments to Section 804, Places of Worship

1. Update permitted accessory activities in Subsection 804.02(A) to include preschools or prekindergarten education, as required by SB 1099 [2025].

Summary of Proposed Amendments to Section 806, Home Occupations to Host Events

1. Clarify which development standards sections from Section 1000 apply to Home Occupations to Host Events.
2. Eliminate the standards for portable restrooms due to significant confusion for applicants related to how the standard worked with other department’s standards (i.e. Building Code, Septic rules)
3. Add the requirement to Screening and Buffering section, which provides standards and guidance to use landscaping, fencing, or other techniques to mitigate impacts of dissimilar uses. 
4. Conforming amendment necessary due to proposed changes to use tables in AG/F, EFU, and TBR Districts.

Summary of Proposed Amendments to Section 837, Mobile Vending Units

1. Remove off-street motor vehicle parking requirement for locations within urban zoning districts, which includes those regulated by ZDO Sections 315, 510, 511, 512, 602, and 702, to comply with recent changes to OAR 660, Division 12. Off-street motor vehicle parking requirements would remain for other zones in which this use is allowed. 

Summary of Proposed Amendments to Section 839, Accessory Dwelling Units

1. Repeal the fire hardening construction and defensible spaces standards that were tied to the now-repealed statewide map of wildfire risk.

Summary of Proposed Amendments to Section 840, Farmers Markets

1. Remove off-street motor vehicle parking requirement for locations within urban zoning districts, which includes those regulated by ZDO Sections 315, 510, 511, 512, 602, and 702, to comply with recent changes to OAR 660, Division 12. Off-street motor vehicle parking requirements would remain for other zones in which this use is allowed.

Summary of Proposed Amendments to Section 841, Marijuana Production, Processing, and Retailing

1. Correct citations to ORS sections and to Oregon Liquor and Cannabis Commission.  
2. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension. 

Summary of Proposed Amendments to Section 845, Triplexes, Quadplexes, Townhouses, and Cottage Clusters

1.  Exempt townhouse developments with 20 or more units from the building design standards in Section 845.03(C), pursuant to SB 974[2025].

Summary of Proposed Addition of Section 848, Emergency Shelter Siting

1. Add standards for emergency shelter siting, as required by HB 2026 [2021] and reflected in ORS 197.782 – 783. Standards include specific requirements for operator of emergency shelter, siting requirements and list of services that may be provided. Approval of an emergency shelter siting sunsets if, in the most recent point-in-time count, total sheltered and unsheltered homeless population was less than 0.18 percent of the state population.
2. Require review of an emergency shelter as a new Type II-S application, as described in Section 1307, Procedures. 

Summary of Proposed Addition of Section 849, Residential Treatment Facilities, Residential Treatment Homes, Mental or Psychiatric Hospitals, and Crisis Stabilization Centers

1. Add standards for certain residential treatment facilities, residential treatment homes, mental or psychiatric hospitals, and crisis stabilization centers, as required by HB 2005 [2025].  
2. Require review of any of these uses as a new Type II-S application, as described in Section 1307, Procedures.

Summary of Proposed Amendments to Section 903, Setback Exceptions

1. Revise alternative setback options for flag lots to be clear and objective, and to account for flag lots that are not rectilinear.
2. Remove standards that provided a process for a reduced front setback for alterations to a structure with a lawfully nonconforming front setback. This process is removed as the standards were both duplicative to the nonconforming use process established in ZDO 1206 and potentially imposed a greater restriction on property owners with nonconforming structures than is allowed under ORS 215.130.

Summary of Proposed Amendments to Section 1005, Site and Building Design

1. Fix incorrect citations/references:
   • 1005.05(H) references 1009.04(A)(2) but it is intended to reference 1009.03(A)(2).
   • 1005.09(E) references 1005.10(G) and (L) but it is intended to reference 1005.09(G) and (L).
2. Remove the prohibition on outdoor silos, towers, or other specialized storage structures in the BP and LI zones, subject to a height limit, siting standards, and screening requirements. 
3. Add requirement that on-site walkways must connect primary building entrances to accessible parking spaces, to comply with recent changes in ORS 660, Division 12.
4. Replace “major on site vehicular circulation ways” with “internal streets” to be consistent with proposed new definition of internal streets in Section 202, Definitions.

Summary of Proposed Amendments to Section 1009, Landscaping

1. Include climate mitigation actions and tree canopy requirements for new off-street parking lots that are over one-half acre in size and within the Portland Metropolitan Urban Growth Boundary, to comply with recent changes to OAR 660, Division 12.

Summary of Proposed Amendments to Section 1010, Signs

1. Remove references to CI zoning district, which is no longer applied in the county, including a reference to the definition of “site area.” Replace with reference to the same definition found in Section 844, Multi-Use Developments.
2. Clarify that the standards for signs in Commercial zoning districts apply to all signs in Commercial zoning districts, not just commercial signs.

Summary of Proposed Amendments to Section 1015, Parking and Loading

1. Remove off-street motor vehicle parking requirement for locations within urban zoning districts, which includes those regulated by ZDO Sections 315, 510, 511, 512, 602, and 702, to comply with recent changes to OAR 660, Division 12.
2. Amend standards currently tied to the minimum number of required spaces to apply to the number of provided spaces, if no minimum number of spaces are required.
3. Amend maximum off-street parking requirements for certain uses within the Portland Metropolitan Urban Growth Boundary to comply with to OAR 660, Division 12, while maintaining compliance with Metro’s Regional Transportation Functional Plan. Where the two standards conflicted, the more restrictive standard was applied. Amendments includes a new definition of “Urban Zone A” to incorporate requirements of OAR 660, Division 12.
4. Replace “major on site circulation drive aisles” with “internal streets” for consistency and to reflect with proposed new definition of internal streets in Section 202, Definitions.
5. Includes conforming amendments.

Summary of Proposed Amendments to Section 1102, Design Review

1. Require design review for institutional uses in any zoning district. Institutional uses are subject to the development standards in Section 1000, but it is not currently clear in some zoning districts what process is required for review of a proposed development against those standards. 
2. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension. 

Summary of Proposed Amendments to Section 1103, Open Space Review

1. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension.

Summary of Proposed Amendments to Section 1105, Subdivisions, Partitions, Replats, Middle Housing Land Divisions, Condominium Plats, and Vacations of Recorded Plats

1. Adopt new standards and submittal requirements for Expedited Land Divisions, as required by Section 19 of House Bill 2138 [2025]. 
2. Adopt amended standards for Middle Housing Land Divisions, as required by Section 14 of HB 2138 [2025]. 
3. Minor renumbering housekeeping amendments resulting from new section created for (1) and other citation corrections.
4. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension. 

Summary of Proposed Amendments to Section 1107, Property Line Adjustments

1. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension.

Summary of Proposed Amendments to Section 1203, Conditional Uses

1. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension.

Summary of Proposed Amendments to Section 1205, Variances

1. Change approval period to six years with no option for a time extension, instead of the current four years plus an optional two-year time extension.

Summary of Proposed Amendments to Section 1206, Nonconforming Uses and Vested Rights

1. Removes two Oxford commas to align ZDO 1206.05(A) and (B) with ORS 215.130(10)(a) and (11).
2. Removes option for time extension for approval period, which was inconsistent with the allowed discontinuance period of a nonconforming use.

Summary of Proposed Amendments to Section 1307, Procedures

1. Adopt changes to the review procedures for Type II-E land use applications (applicable to expedited land divisions and middle housing land divisions) to align with changes adopted per House Bill 2138 [2025].
2. Remove listing for Type I time extensions from Table 1307-1, Land Use Permits by Procedure Type. This is required to conform to changes proposed in Sections 401, 406 and 1310.
3. Allow for one property owner of each taxlot within a subject property to sign to authorize a land use application. This change will enable the county to begin processing land use applications through an online portal.
4. Amend time period during which a Type I application can be made complete from 60 to 180 days, to be consistent with Type II and III land use applications.
5. Allow the filing of a new application to modify a prior condition of approval if two years have passed since the original application was approved. This will sync the modification provisions with those that apply to refiling a denied or revoked application
6. Add two new land use application types and procedures: 
   1. Type I-H, for certain housing applications utilizing only clear & objective standards for review, required pursuant to Section 17, HB 4037[2026].
   2. Type II-S, for specific use applications that are required by state law to have different procedural aspects, including in some case limited notice of application and limited appeal rights. The applications follow the Type II procedures and processes except where specifically noted in this section. Type II-S applications include the new “urban housing application” required pursuant to ORS 197A.146.

Summary of Proposed Amendments to Section 1309, Modification

1. Remove reference to time extension, a process which is proposed for removal from the ZDO. A modification will remain subject to the same approval period as the application type modified by the approval.
2. Clarifies that a modification approval will become void if not implemented during the approval period. 

Proposed Repeal of Section 1310, Time Extension

1. Section was initially proposed for repeal because implementation creates an unnecessary burden on both applicants and Planning staff. Two-year time extensions are rarely denied, unless standards have changed during the original approval period (typically four years). Rather than require an additional fee and application, that takes a substantial amount of time for staff to review, the proposal in ZDO-293 is to eliminate the two-year time extensions for most land use approvals in most zoning districts and allow two additional years for the original approval. 
2. All Sections of the ZDO that currently have a four-year approval period plus an optional two-year time extension are proposed to change to a six-year approval period with no option for a time extension. 
3. However, if this section were repealed now, it would eliminate the opportunity for applicants who were approved under the current four-year approval period to apply for a two-year time extension. Rather than remove this option, amendments are now proposed to maintain this option for applicants with prior approvals.   
4. Exceptions are the AG/F, EFU, and TBR Districts, in which approval periods and time extensions for certain uses are specified in state law. Amendments are proposed for these sections to ensure approval period and time extension provisions are consist with state law.

Figure 5 – 1a: Typical Urban Major Arterial Cross Section

Notes:

1. For more detailed information on the implementation of this Cross Section – see the Zoning and Development Ordinance and/or the County Roadway Standards.
2. Cross section may vary to accommodate Metro's Regional Transportation Functional Plan 3.08.110 Street System Design, to accommodate design modifications in compliance with the County Roadway Standards, or where a special transportation plan in Chapter 5 specifies a different cross section.
3. Medians, pedestrian refuges, islands, curb extensions, turn lanes, and drainage facilities shall be provided as needed in accordance with the Comprehensive Plan, the 5-year Transportation Capital Improvement Program, or as warranted by the County Roadway Standards and will vary the required constructed and right-of-way width.
4. Bikeway facilities shall be based on the guidelines found in 5.2 of the Clackamas County Active Transportation Plan except as specified in the Comprehensive Plan and the 5-year Capital Improvement program.

Figure 5 – 1b: Typical Urban Minor Arterial Cross Section

Notes:

1. For more detailed information on the implementation of this Cross Section – see the Zoning and Development Ordinance and/or the County Roadway Standards.
2. Cross section may vary to accommodate Metro's Regional Transportation Functional Plan 3.08.110 Street System Design, to accommodate design modifications in compliance with the County Roadway Standards, or where a special transportation plan in Chapter 5 specifies a different cross section.
3. Medians, pedestrian refuges, islands, curb extensions, turn lanes, and drainage facilities shall be provided as needed in accordance with the Comprehensive Plan, the 5-year Transportation Capital Improvement Program, or as warranted by the County Roadway Standards and will vary the required constructed and right-of-way width.
4. Bikeway facilities shall be based on the guidelines found in 5.2 of the Clackamas County Active Transportation Plan except as specified in the Comprehensive Plan and the 5-year Capital Improvement program.

Figure 5 – 1c: Typical Urban Collector Cross Section

Notes:

1. For more detailed information on the implementation of this Cross Section – see the Zoning and Development Ordinance and/or the County Roadway Standards.
2. Cross section may vary to accommodate Metro's Regional Transportation Functional Plan 3.08.110 Street System Design, to accommodate design modifications in
3. compliance with the County Roadway Standards, or where a special transportation plan in Chapter 5 specifies a different cross section.
4. Medians, pedestrian refuges, islands, curb extensions, turn lanes, and drainage facilities shall be provided as needed in accordance with the Comprehensive Plan, the 5-year Transportation Capital Improvement Program, or as warranted by the County Roadway Standards and will vary the required constructed and right-of-way width.
5. Bikeway facilities shall be based on the guidelines found in 5.2 of the Clackamas County Active Transportation Plan except as specified in the Comprehensive Plan and the 5-year Capital Improvement program.

Figure 5 – 1d: Typical Urban Connector/Local Cross Section

Notes:

1. For more detailed information on the implementation of this Cross Section – see the Zoning and Development Ordinance and/or the County Roadway Standards.
2. Cross section may vary to accommodate Metro's Regional Transportation Functional Plan 3.08.110 Street System Design, to accommodate design modifications incompliance with the County Roadway Standards, or where a special transportation plan in Chapter 5 specifies a different cross section.
3. Curb extensions, turn lanes, and drainage facilities shall be provided as needed in accordance with the Comprehensive Plan, the 5-year Transportation Capital Improvement Program, or as warranted by the County Roadway Standards and will vary the required constructed and right-of-way width.
4. Standard configuration is parking on both sides, which may be reduced to one side of the street (resulting in a paved width of 26' with a design exception per the Roadway Standards.
5. Local Streets Only: Under no circumstances will the paved width be less than 20' (two 10' travel lanes with no parking).

Figure 5 – 1e: Typical Urban Alley Cross Section

Notes:

• This standard cross section shall apply except where a Special Transportation plan in Chapter 5 specifies a different cross section.
• For more detailed information on the implementation of this Cross Section – see the Zoning and Development Ordinance and/or County Roadway Standards.
• Cross section may vary to accommodate Metro Regional Transportation Functional Plan 3.08.110 Street System Design or to accommodate topographical or environmental constraints.

Last Amended November 27, 2018

Citizen Involvement

• Citizen and Agency Involvement Program
• Clackamas County Citizen Involvement Program.  Comprehensive Plan 
  Chapter 2
• Committee for Citizen Involvement Bylaws
• Committee for Citizen Involvement Roster
• Community Planning Organization Leaders.  Lists and maps of CPO areas.

Natural Resources and Energy

Clackamas County Energy Project Publications, 1983:

• An Energy Anthology
• Clackamas County Energy Use and Supply Background Data
• Clackamas County Energy Management Plan
• Technical Memorandum, Energy Emergency Planning
• Technical Memorandum, County Buildings
• Technical Memorandum, County Motor Fleet
• Technical Memorandum, County Organization

Clackamas County Resources Atlas, Clackamas County Dept. of Environmental Services, Planning Division.  Includes maps of the following:

• General Resources
• Agricultural Land Types and Major Production Areas
• Forest Zones and Vegetative Types
• Cubic Foot Forest Site Classes
• Forest Ownerships
• Urban Forest Cover
• Detailed SCS Soil Mapping Index
• Unique National and Scenic Features
• Open Urban Land Inventory
• Park and Recreation Facilities;  Historic and Cultural Sites
• Fisheries and Wildlife Habitats
• Aggregate Sites
• Groundwater Studies Index
• Geologic Hazards, Northwest Clackamas County
• River Corridors, Existing Conditions and Management Strategies
• Precipitation and Physiography

Draft Third Biennial Energy Plan, Action Plan and Recommendations, Oregon Department of Energy, October 1988.

Environmental Geology of the Kellogg Creek-Mt. Scott Creek and Lower Clackamas River Drainage Areas, Northwestern Clackamas County, Oregon, M.S. Thesis, Matthew John Brunego, March, 1978.

Federal Land Resource/Management Plans - Mt. Hood National Forest, Draft EIS, U.S. Forest Service, 1988; and Eastside Salem District Planning Area Land Use Plan (Clackamas Unit), Bureau of Land Management, 1982.

Fish and Wildlife Habitat Protection Plan for Clackamas County, Oregon Department of Fish and Wildlife, 1979.

Geologic Hazards of the Bull Run Watershed, Multnomah and Clackamas Counties, Oregon, Oregon Bulletin 82.  Oregon Department of Geology and Mineral Industries, 1974.

Geology and Geologic Hazards of Northwestern Clackamas County, Oregon Bulletin 99, Oregon Department of Geology and Mineral Industries, 1979.

Geology and Ground Water of the Molalla-Salem Slope Area, Northern Willamette Valley, Oregon, U.S. Geological Survey, 1967.

Ground Water Resources in the French Prairie Area, Northern Willamette Valley, Oregon, U.S. Geological Survey, 1967.

Ground Water Resources in the East Portland Area, Oregon, U.S. Geological Survey, 1965.

Lakes of the Mt. Hood National Forest, Oregon Dept. of Fish and Wildlife and U.S. Forest Service, N.D.

National Wetlands Inventory, U.S. Dept. of the Interior, Fish and Wildlife Service, Individual Quad Maps Covering Clackamas County, 1981 to date.

1980 Major Water Tables Aquifers Map, supplied by Oregon Dept. of Environmental Quality, N.D.

1984 Census of Agriculture, U.S. Dept. of Commerce, Bureau of the Census, Vol. 1, part 36.

Oregon Air Quality, 1988 Annual Report, Dept. of Environmental Quality, Air Quality Control Division, Portland, Oregon.

Oregon Natural Areas Clackamas County, Oregon, Natural Heritage Program, the Nature Conservancy, 1977.

Oregon Nongame Wildlife Management Plan (Revised Draft), Oregon Dept. of Fish and Wildlife, June, 1984.

Oregon Outdoor Recreation "SCORP '83", State Parks and Recreation, Oregon Dept. of Transportation, 1983.

Oregon's Statewide Assessment of Nonpoint Source Problems, Oregon Dept. of Environmental Quality, 1978.

Planning Background Report, Energy; Clackamas County Dept. of Environmental Services, Planning Division.

Planning Background Report, Natural Hazards; Clackamas County Dept. of Environmental Services, Planning Division.

Planning Background Report, Natural Resources; Clackamas County Dept. of Environmental Services, Planning Division.

Planning Background Report, Rivers; Clackamas County Dept. of Environmental Services, Planning Division.

Preliminary Willamette River Greenway, Royston, Hanamoto, Beck and Abey, 1974.

Regional Urban Wildlife Habitat Maps, U.S. Army Engineer District Portland Corps of Engineers, 1978.

Review of Land, Water, Air Quality and Noise Control, 1980-88, Clackamas County Planning and Economic Development Division, 1988.

Rock Material Resources of Clackamas, Columbia, Multnomah and Washington Counties, Oregon, Oregon Dept. of Geology and Mineral Industries, 1978.

State Comprehensive Outdoor Recreation Plan, Technical Documents I, II, and III;  ODOT, Parks and Recreation Branch.

Timber for Oregon's Tomorrow, Oregon State University School of Forestry, Beuter, John H.; Johnson, K. Norman; Scheurman, H. Lynn; Research Bulletin 19, January 1976.

U.S. Dept. of Agriculture Forest Service, "Timber Resource Statistics for Northwest Oregon," Basset, Patricia M.; preliminary copies of unpublished report, 1979.

Water Resources Data for Oregon 1976, 1977, U.S. Geological Survey.

Well Hydrographs Clackamas County, Oregon, Oregon Water Resources Dept., unpublished.

Wilderness Management Plan for the Table Rock Wilderness (Draft), U.S. Dept. of the Interior, Bureau of Land Management, 1986.

Willamette Greenway Plan, Bureau of Planning, Portland, Oregon, November, 1987.

The Willamette River Greenway, Oregon State Parks and Recreation Branch, Dept. of Transportation.

Land Use

Comprehensive Plan, Clackamas County, Oregon, Planning Dept., Clackamas County, August, 1974.

Comprehensive Plan, Clackamas County, Oregon, Planning Dept., Clackamas County, June, 1980.

Comprehensive Plan Update, The Sunnyside United Neighbors, June 30, 1988, Revised August 22, 1988.

Comprehensive Plan, Clackamas County, Oregon, Planning Dept., Clackamas County, June 1992.

Let's Build A Revised Comprehensive Plan for Clackamas County, Dept. of Environmental Services, Clackamas County, January, 1979.

Sunrise Center Task Force, Clackamas County, December, 1987.

City of Sandy Urban Growth Boundary Expansion Analysis – Final Report, City of Sandy
Planning Department, February 2017.

City of Sandy Urbanization Study – Final Report, City of Sandy Planning Department,
January 2015.

Transportation

5 Year Transportation Capital Improvement Plan, Fiscal Years 1996-2000, Clackamas County, July, 1996.

Capital Improvement Plan, 5-Year Capital Improvement Program, FY 1998/99 to 2002/03, 20-Year Long Range Transportation Plan, 1998 to 2008, December 1998.

Getting There by Bike, Metropolitan Services District, Metro, 1988.

Handbook for Environmental Quality Elements of Land Use Plans, Air Quality, Oregon Dept. of Environmental Quality, 1978.

I-5/Canby/Highway 213 Access Improvement Study, Clackamas County Dept. of Transportation and Development, 1987.

Oregon Action Plan for Transportation, Oregon Dept. of Transportation, 1989.

Planning Background Report: Transportation, Clackamas County Dept. of Environmental Services, Planning Division, 1979.

Planning With Transit, Tri-Met, 1979.

Public-Private Task Force on Transit Finance, Policy Report, Barney and Worth, Inc., 1988.

Regional Bicycle Plan, Metropolitan Service District, August 1983.

Regional Transportation Plan, Metropolitan Service District, 1989.

Six-Year Highway Improvement Program 1989-1994, Oregon Dept. of Transportation, 1988.

State of Oregon Bicycle Master Plan, Oregon Dept. of Transportation, Highway Division, March 15, 1988.

Oregon Bicycle and Pedestrian Plan, Oregon Department of Transportation, Highway Division, June 14, 1995.

Sunnyside I-205 Split Diamond Interchange, Clackamas County Dept. of Transportation and Development, 1988.

Sunnyside Road, (I-205 to SE 172nd Avenue) Environmental Assessment. Clackamas County, August 21, 1998.

Sunrise Corridor Reconnaissance Study, Oregon Dept. of Transportation, Highway Division, Region 1, 1987.

A Systems Analysis of Major Regional Transportation Corridors, MSD, 1979.

Transportation Involvement Program, Metropolitan Service District, 1987.

Transportation Plan Background Document, Clackamas County Dept. of Transportation and Development, September 2013.

Clackamas County Transportation Safety Action Plan, Kittelson & Associates, July 2013.

Clackamas County ITS (Intelligent Transportation System) Action Plan, DKS Associates, May 2011.

Tri-Met Five-Year Transit Development Plan, Tri-Met, 1987.

SE 172nd Avenue/ SE190th Drive Corridor Management Plan, Appendix A - Environmental Baseline Report, MB&G, Inc., September 20, 2011

SE 172nd Avenue/ SE190th Drive Corridor Management Plan, Appendix B – Analysis of Preferred Alternative

SE 172nd Avenue/ SE190th Drive Corridor Management Plan, Appendix C – 
15% Design Plans, Alignment Alternative AT2, Clackamas County, 
October 24, 2011

SE 172nd Avenue/ SE190th Drive Corridor Management Plan, Appendix E – Corridor Centerline Survey, November 10, 2011

Clackamas County Active Transportation Plan, Appendices A through F

Damascus Mobility Plan, Kittleson & Associates, Inc., July 27, 2022

Walk Bike Clackamas Plan, Appendices A through T

Housing

A Report to the Board of County Commissioners, Housing Affordability and Homelessness Task Force, December, 2019.

Background Report for the Clackamas County Comprehensive Plan Update 1989, Goal 10 - Housing, Clackamas County Dept. of Transportation and Development, Economic Development Section, 1989.

Clackamas County Regional Housing Need Analysis, EcoNorthwest, September, 2019.
Exploring the Factors that Drive Displacement Risk in Unincoprorated Clackamas County: With a Special Look at Manufactured Housing Communities, EcoNorthwest, September, 2019.
Long-Range Planning Issue Paper #2020-1:  Housing Strategies Related to Comprehensive Plan and Zoning and Development Ordinance Updates, Planning and Zoning Division, Clackamas County, February, 2020.

Plan for Community Development, Clackamas County Dept. of Environmental Services, Planning Division, 1979.

Public Facilities and Services

Clackamas County School Directory 1988-1989, Education Service District, 1988.

CRAG 208 Areawide Wastewater Treatment Management Study, (Volumes 1 and 2, including technical supplements), CRAG, 1977.

DEQ Coordination Program Approved by LCDC, Dept. of Environmental Quality, 1978.

Draft Plan for Community Development - Clackamas County, Clackamas County, January, 1979.

Draft Regional Water Supply Plan, U.S. Army Corps of Engineers, 1979.

Drainage Management Flood Damage Reduction Measures, Kramer, Chin and Mayo, 1978.

Drainage Management Planning Manual, Review Draft, U.S. Army Corps of Engineers, March, 1979.

Drainage Study for the City of Milwaukie, Oregon, Stevens, Thompson and Runyan, 1970.

Drainage Study of the Oak Lodge Area, Clackamas County, Stevens, Thompson and Runyan, 1970.

Guide to Water and Sewer Systems, CRAG, 1976.

Interim Guidelines for Storm Water Run-off Management in the Johnson Creek Basin, MSD, 1979.

Inventory of Existing Water Supply Systems for Major Outlying Communities, U.S. Army Corps of Engineers, 1978.

Kellogg Creek Storm Drainage, Clackamas County, CH2M, 1970.

Master Plan Report, Clackamas Community College, 1977 (revised).

North Clackamas Urban Area Public Facilities Plan, Sanitary Sewerage Services, Clackamas County Dept. of Transportation and Development, Planning and Economic Development Division, January 1989.

North Clackamas Urban Area Public Facilities Plan, Storm Drainage Element, Clackamas County Dept. of Transportation and Development, Planning and Economic Development Division, February, 1989.

North Clackamas Urban Area Public Facilities Plan, Transportation Element, Clackamas County Dept. of Transportation and Development, Planning and Economic Development Division, November, 1988.

North Clackamas Urban Area Public Facilities Plan, Water Systems, Clackamas County Dept. of Transportation and Development, Planning and Economic Development Division, February, 1989, as amended on September 3, 1992, by Board Order 92-931.

Sewerage Facilities Plan and Study Treatment and Disposal Element--Tri-City Area, Clackamas County, CH2M-Hill, 1978.

Sewerage Facilities Plan for Mt. Hood Recreational Corridor, Stevens, Thompson and Runyan, 1977.

Solid Waste and Waste Management Ordinance, Clackamas County, 1970, Amended 1973, 1975, 1985, and 1989.

Solid Waste Landfill Study, Clackamas County, CH2M-Hill, 1971.

Statement of Taxes Levied in Clackamas County, Clackamas County Assessor, 1988.

Storm Sewer and Drainage Study of the Lake Oswego Area, CH2M, 1968.

Subdivision Manual, Clackamas County, 1975.

Water and Sewerage for Non-Urban Clackamas County, Clackamas County, 1970 (Vol. 1 and 2).

Economics

Background Report for the Clackamas County Comprehensive Plan Update 1989, Goal 9 - Economy of the State, Dept. of Transportation and Development, Economic Development Section, 1989.

Economic Development Plan, Clackamas County Dept. of Transportation and Development, 1986.

Tourism Background Report with Appendices, Clackamas County, Dept. of Transportation and Development, August, 1985.

Open Space, Parks, and Historic Sites

Clackamas County Cultural Resources Inventory, Volumes I through XV, Clackamas County, 1984 and 1986.

Clackamas County Historic Landmarks, Unincorporated Urban Area, Clackamas County Dept. of Transportation and Development, June, 1988.

Clackamas County Household Survey, 1978; Portland State University, CPRC.

Maps of the Barlow Road, Mt. Hood to Oregon City, Clackamas County, Oregon, Clackamas County Planning and Economic Development Division, November, 1988.

Metropolitan Area Parks, Metropolitan Service District, 1989.

Metropolitan Regional Recreation Resources 1995 and 2010, Metro, 1988.

Oregon Recreation Trails, State Parks and Recreation, Oregon Dept. of Transportation, 1979.

Our Oregon Trail, A Report to the Governor, Oregon Trail Advisory Council, 1988.

Parks and Recreation for the East Urban Area, Clackamas County Dept. of Transportation and Development, Planning and economic Development Division, 1989.

Plan for Community Development, Clackamas County, Clackamas County Dept. of Environmental Services, Planning Division.

Recreation Economic Decisions, Richard J. Walsh, Colorado State University, 1986.

Recreation, Park and Open Space Standards and Guidelines, National Recreation and Park Association, 1987.

Regional Factbook, Demographic, Employment and Land Development Trends - Portland and Metropolitan Area, Metro, 1988.

State Comprehensive Outdoor Recreation Plan, Technical Documents I, II, and III;  ODOT, Parks and Recreation Branch.

Strategies for Parks and Recreation, Clackamas County, Technical Memorandum, 1981.

Trails for Oregon, A Plan for a Recreation Trails System; ODOT, Parks and Recreation Branch.

The 2010 Plan, State Parks and Recreation, ODOT, 1988.

The Urban Outdoors, Metropolitan Service District.

Community Plans and Design Plans

Clackamas Industrial Area and North Bank of the Clackamas River Design Plan, Clackamas County Planning Department, February 13, 1997.

Clackamas Regional Center Transportation System Plan, Kittelson & Associates, Inc., January, 1999.

Kruse Way Design Plan, Clackamas County Department of Environmental Services, October, 1983.

McLoughlin Corridor Land Use and Transportation Study, Final Report, Clackamas County, June, 1999.

Mount Hood Community Plan, Clackamas County Planning Department, July, 1982.

Sunnyside Corridor Community Plan, Clackamas County Dept. of Transportation and Development, Planning Division, June, 2000.

Sunnyside Village Plan, Clackamas County Dept. of Transportation and Development, Planning Division, July, 1996.

Villages at Mt. Hood Pedestrian and Bikeway Implementation Plan, June 2016