+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

Good/Fair/Poor Condition:Fair
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. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201569.2FairSatisfactorySatisfactoryGood-113100
July 201368.2FairSatisfactoryFairGood-15602
July 201179.0FairGoodSatisfactorySatisfactory-15602
November 200996.5FairGoodSatisfactoryGood-15602
November 200796.5FairGoodSatisfactoryGood-15448
November 200596.6GoodGoodGoodGood-14998
November 200396.6FairSatisfactoryGoodGood-14561
December 200196.9GoodGoodGoodGood-11201
December 199994.9GoodGoodGoodGood-11201
December 199794.9GoodGoodGoodGood-11200
December 199595.1GoodGoodGoodGood-11200
December 199395.1GoodVery GoodGoodGood-11200
December 199197.1GoodGoodGoodVery Good-11200

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Closed Web/Box Girderlinear ft.80351002930
Reinforced Concrete Top Flangesq. ft.7,2806,16081,1120
Reinforced Concrete Columneach20200
Reinforced Concrete Abutmentlinear ft.132132000
Reinforced Concrete Pier Caplinear ft.5305300
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.252025200