+45.52364, -122.68634
45°31'25" N, 122°41'11" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:NW COUCH ST CO over HWY 61
Structure number:09278 061 00225
Location:0.5 MI W PORTLAND CC
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Local (Urban) [19]
Length of largest span:64.3 ft. [19.6 m]
Total length:126.0 ft. [38.4 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:55.1 ft. [16.8 m]
Vertical clearance below bridge:19.4 ft. [5.9 m]
Skew angle:18°
Owner:State Highway Agency [01]
Year built:1968
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:2
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: July 2015 

Status:Open, no restriction [A]
Average daily traffic:113,100 [as of 2014]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:32.5 tons [29.5 metric tons]
Inventory rating:25.0 tons [22.7 metric tons]
Sufficiency rating:69.2

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201569.2Not deficientSatisfactorySatisfactoryGood113100
July 201368.2Not deficientSatisfactoryFairGood15602
July 201179.0Not deficientGoodSatisfactorySatisfactory15602
November 200996.5Not deficientGoodSatisfactoryGood15602
November 200796.5Not deficientGoodSatisfactoryGood15448
November 200596.6Not deficientGoodGoodGood14998
November 200396.6Not deficientSatisfactoryGoodGood14561
December 200196.9Not deficientGoodGoodGood11201
December 199994.9Not deficientGoodGoodGood11201
December 199794.9Not deficientGoodGoodGood11200
December 199595.1Not deficientGoodGoodGood11200
December 199395.1Not deficientVery GoodGoodGood11200
December 199197.1Not deficientGoodGoodVery Good11200