US 30 BY (HWY 123) over MILL ST


+45.58373, -122.76751
45°35'01" N, 122°46'03" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US 30 BY (HWY 123) over MILL ST
Structure number:06498 123 00027
Location:6.0 MI NW PORTLAND CC
Route classification:Minor Arterial (Urban) [16]
Length of largest span:89.9 ft. [27.4 m]
Total length:210.0 ft. [64.0 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:40.0 ft. [12.2 m]
Owner:State Highway Agency [01]
Year built:1931
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 13.5 / H 15 [2]
Number of main spans:5
Main spans material:Steel [3]
Main spans design:Girder and floorbeam system [03]
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:19,900 [as of 2014]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry 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:50.9 tons [46.3 metric tons]
Inventory rating:30.9 tons [28.1 metric tons]
Sufficiency rating:57.3
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$1,076,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201557.3FairSatisfactoryFairSatisfactory-19900
October 201358.1FairSatisfactoryFairSatisfactory-18200
October 201127.5FairSatisfactoryFairSatisfactoryFO18200
March 201027.5FairSatisfactoryFairSatisfactoryFO20700
March 200848.1FairSatisfactorySatisfactorySatisfactoryFO20700
March 200647.4FairSatisfactoryGoodSatisfactoryFO24100
November 200347.7FairSatisfactoryGoodSatisfactoryFO21527
November 200147.8GoodGoodGoodGoodFO20900
November 199956.8GoodGoodGoodGood-20601
November 199756.8GoodGoodGoodGood-20600
November 199557.8GoodGoodGoodGood-18400
November 199363.4GoodGoodGoodGood-18400
November 199161.4FairGoodGoodSatisfactory-18400