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City of Lake Oswego
Willamette River railroad bridge

Public Works Standard Details

The following index lists the City's Standard Details, hereinafter "Details," for construction of public improvements. The Details can be accessed individually for review or downloading by clicking on the detail number.  They are available in AutoCAD, JPG, and Adobe Acrobat.

These Details are intended for use by design professionals for the design and construction of public improvements required to provide service to private development but which are owned and maintained by the City of Lake Oswego. They should also be used for the design and construction of privately owned and maintained facilities to be located in City owned rights-of-way and/or to be connected to City owned facilities.

It is expected that changes in technology, materials of construction, and contractors' means and methods will require periodic revision of these Details. However, modification of these Details without express approval by the City Engineer is prohibited. Your assistance in reporting any errors and providing suggestions for additions, deletions or revisions to maintain these Details is welcomed and appreciated. Inquiries regarding current or imminent revisions, suggestions, and reports of errors or omissions should be directed to the City Engineer.

We try to update these details on a regular basis, however, we do not guarantee that the most recent version will be published on this site.  To guarantee that the most up-to-date version is available on this web site, please contact the Engineering Department at 503-635-0270 or email. 

  • E - Erosion Control
  • S - Street
  • SD - Storm
  • W - Water
  • WW - Wastewater
Number Title Revisionsort icon Download
S7-03

Neighborhood Collector Speed Bump

01/18/2013
S6-04

Trench Patch for Collectors and Arterials Using CDF

01/15/2013
S7-02

Local Residential Speed Bump

01/15/2013
S6-03

Trench Patch

01/03/2013
S6-01

Water and Sewer Trench Backfill Details

01/03/2013
S6-02

Trench and Patch Detail for Utility Cuts in Streets Where Geotextile is Present

01/02/2013
S5-03

Typical Barricade

12/12/2012
S5-01

Bollard Detail

11/27/2012
S5-02

Town and Country Residential Street Light

11/27/2012
S4-06

Commercial Driveway Approach (without Planter Strip)

11/20/2012
S4-05

Commercial Driveway Approach (with Planter Strip)

11/19/2012
S4-01

Sidewalk Ramp Details

11/08/2012
S4-04

Vertical Curves for Driveways (Examples)

11/08/2012
S4-02

Sidewalk Ramp Replacement

11/07/2012
S4-03

Typical Driveway Gradient (Profile)

11/07/2012
S3-03

Typical A.C. Path

10/30/2012
S2-05

Mountable Curb Transition To Side Inlet Catch Basin

10/29/2012
S3-01

Sidewalks

10/29/2012
S3-02C

Non-Sidewalk Driveway Approaches

10/29/2012
S3-02B

Curb Line Sidewalk Driveways or Alleys (Options M & N)

10/29/2012
S3-02A

Separated Sidewalk Driveways or Alleys (Options H, I & J)

10/29/2012
S2-04

Valley Gutter Detail

10/24/2012
S2-03

Mountable Curb Detail

10/16/2012
S2-02

Standard Curb and Gutter Detail

10/15/2012
S2-01

Vertical Curb Detail

09/25/2012
S1-03

Typical Residential Turn-A-Round

09/13/2012
S1-02

28 Ft. Urban Residential Street Section

09/12/2012
S1-01

20 Ft. Urban Residential Street Section

08/27/2012
SD5-02A

Oversize Gutter and Curb Inlet Catch Basin (CG-2)

08/26/2012
SD8-02

Typical Parking Lot Detention Facility

08/23/2012
SD5-03B

Type "G" Catch Basin Frame & Grate

08/22/2012
SD5-04

Pollution Control Box

08/22/2012
SD5-03A

Type "G" Catch Basin

08/21/2012
WW1-02A

48" Extended Precast Manhole Base

08/20/2012
SD6-01D

Standard Ditch Inlet w/Snout & Bio-Skirt

08/17/2012
SD6-01B

Slanted Frame & Grate for Ditch Inlet

08/16/2012
SD6-01C

Box Frame & Grate for Ditch Inlet

08/16/2012
SD6-01A

Standard Ditch Inlet

08/15/2012
WW9-10

Step System (Septic Tank Effluent Pump) 2" Pressure Cleanout Assembly

08/14/2012
WW9-08

Step System (Septic Tank Effluent Pump) Typical 4" Lateral Cleanout

08/14/2012
WW9-09

Step System (Septic Tank Effluent Pump) Typical Pipe & Trench Detail

08/14/2012
WW9-06

Step System (Septic Tank Effluent Pump) Control and Alarms

08/09/2012
WW9-07

Step System (Septic Tank Effluent Pump) Typical 2" Service Connection Detail

08/09/2012
WW9-05

Step System (Septic Tank Effluent Pump) Tank Riser Detail

08/08/2012
WW9-03

Step System (Septic Tank Effulent Pump) Gravity Discharge Tank Equipment

08/07/2012
WW9-04

Step System (Septic Tank Effluent Pump) Effluent Pumping Tank Equipment

08/07/2012
SD5-02C

Oversize Catch Basin Grate (CWS Drawing No 170-ST)

07/26/2012
WW2-01

Standard Manhole Frame & Cover

07/25/2012
WW2-02

Suburban Manhole Frame

07/25/2012
WW2-03

Watertight Manhole Frame & Cover

07/24/2012