US 30 BY (HWY 123) over NE 122ND AVE


+45.55720, -122.53765
45°33'26" N, 122°32'16" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US 30 BY (HWY 123) over NE 122ND AVE
Structure number:09059 123 01243
Location:7.0 MI NE PORTLAND CC
Purpose:Carries highway overpass over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:37.4 ft. [11.4 m]
Total length:131.9 ft. [40.2 m]
Roadway width between curbs:56.1 ft. [17.1 m]
Deck width edge-to-edge:64.0 ft. [19.5 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:20°
Owner:State Highway Agency [01]
Year built:1962
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:4
Main spans material:Concrete continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2015 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:19,200 [as of 2014]
Truck traffic:9% of total traffic
Deck condition:Good [7 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:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:29.3 tons [26.6 metric tons]
Inventory rating:22.4 tons [20.4 metric tons]
Sufficiency rating:78.5
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$1,408,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201578.5FairGoodSatisfactoryGoodFO19200
October 201378.5FairSatisfactorySatisfactoryGoodFO17500
September 201178.5FairSatisfactorySatisfactoryGoodFO17500
November 200978.5FairSatisfactoryGoodGoodFO18400
November 200780.5FairSatisfactoryGoodGood-18849
November 200598.0FairSatisfactoryGoodGood-18300
November 200398.0FairSatisfactoryGoodGood-18500
November 200198.0FairSatisfactoryVery GoodVery Good-18300
November 199996.0GoodGoodVery GoodVery Good-16401
November 199796.0GoodGoodVery GoodVery Good-16400
November 199594.0GoodGoodVery GoodVery GoodFO21900
November 199394.0GoodGoodVery GoodVery GoodFO21900
November 199192.0GoodGoodVery GoodVery GoodFO21900