Services Departments Government

County Surveyor Plat Information

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Records of Surveys and Property Line Adjustments

Subdivision Plats

Partition Plats

Plat Naming

Condominium Plats

Monument Boxes

In accordance with the Clackamas County Code, monument boxes are required for all public land corner monuments that fall within paved areas and also for centerline monuments within or, if applicable, outside the boundary of subdivision, partition and condominium plats.

The following monument boxes (frames) and covers have been approved for use in Clackamas County:

East Jordan Iron Works, Inc.
Frank Ray, Sales Representative - Northwest Branch
13127 State Avenue
Marysville, WA 98271
(360) 651-6144
Cell (503) 774-4144
Fax (360) 651-6150

Olympic Foundry Inc.
6530 NE 42nd Avenue
Portland, OR 97218
(503) 281-3381
Fax (503) 284-5880


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Development Services Building

Contact Us

Clackamas County Surveyor
150 Beavercreek Rd.
Oregon City, OR 97045

(503) 742-4475
Fax (503) 742-4481

Email the Surveyor

Office Hours:
M–F: 7:30 a.m.–4:30 p.m.
Lobby Hours:
M–Th: 8 a.m.–4 p.m.
F: 8 a.m.–3 p.m.
M–F: 7:30 a.m.–4 p.m.