These Standards are intended to be consistent with the most recent versions of the following references. It is the Engineer’s and/or applicant’s responsibility to comply with federal, state, and local regulations, particularly with respect to wetland and environmental regulations and other development requirements. If conflicts arise, the most restrictive regulation shall apply.
- Clackamas County Comprehensive Plan
- Clackamas County ITS (Intelligent Transportation System) Action Plan
- Clackamas County Active Transportation Plan (“ATP”)
- Clackamas County Transportation Safety Action Plan (“TSAP”)
- Clackamas County Zoning and Development Ordinance (“ZDO”)
- Clackamas County Capital Improvement Plan (“CIP”)
- Clackamas County Code (“County Code”)
- Clackamas County Service District#1 Stormwater Standards
- Water Environment Services Erosion Prevention and Sediment Control Planning and Design Manual
- Proposed Guidelines for Pedestrian Facilities in the Public Right-of-Way (“PROWAG”)
- Technical requirements of Oregon Standard Specifications for Construction
- Other state and federal laws
If these Standards do not address a specific design issue, the most recent version of the following documents should be referenced. In all situations, Engineering shall determine the appropriate design reference and its applicability.
- American Association of State Highway and Transportation Officials (“AASHTO”) - A Guide for Achieving Flexibility in Highway Design
- AASHTO - Guide for the Development of Bicycle Facilities
- AASHTO - Guide for the Planning, Design, and Operation of Pedestrian Facilities
- AASHTO - Guidelines for Geometric Design of Very Low-Volume Local Roads
- AASHTO - LRFD Bridge Design Specifications
- AASHTO - A Policy on Geometric Design of Highways and Streets
- AASHTO - Roadside Design Guide
- AASHTO - Standard Specifications for Structural Supports for Highway Signs, Luminaries, and Traffic Signals
- American Society for Testing and Materials (ASTM)
- The Asphalt Institute - The Asphalt Handbook
- The Asphalt Institute - Thickness Design - Highways and Streets
- Federal Highway Administration (FHWA) - Manual on Uniform Traffic Control Devices (MUTCD)
- FHWA - Standard Highway Signs
- FHWA - Roundabouts: An Informational Guide
- ITE - Traffic Control Devices Handbook
- ITE - Traffic Engineering Handbook
- ITE - Trip Generation Manual
- ITE - Trip Generation Handbook
- International Building Code (“IBC”)
- International Plumbing Code (“IPC”)
- National Association of City Transportation Officials - Urban Bikeway Design Guide
- National Association of City Transportation Officials - Urban Street Design Guide
- ODOT - Highway Design Manual
- ODOT - Hydraulics Design Manual
- ODOT - Oregon Temporary Traffic Control Handbook for Operations of Three Days or Less
- ODOT - Traffic Control Plans Design Manual
- ODOT - Traffic Line Manual
- ODOT - Traffic Manual
- ODOT - Traffic Signal Policy and Guidelines
- ODOT - Sign Policy and Guidelines
- ODOT - Oregon Standard Drawings
- ODOT and American Public Works Association (“APWA”) - Standard Specifications for Construction
- Oregon Fire Code Appendices B and D
- Oregon Fire Code Metro Code Committee Fire Code Applications Guide
- Oregon Supplement to the MUTCD
- Other local fire codes
- Transportation Research Board (TRB) - Highway Capacity Manual
- Tri-Met Bus Stops Guidelines
A part of the Roadway Standards.
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