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 

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. ratingEvaluationDeckSuper.Sub.ADT
September 201557.3Not deficientSatisfactoryFairSatisfactory19900
October 201358.1Not deficientSatisfactoryFairSatisfactory18200
October 201127.5Functionally obsoleteSatisfactoryFairSatisfactory18200
March 201027.5Functionally obsoleteSatisfactoryFairSatisfactory20700
March 200848.1Functionally obsoleteSatisfactorySatisfactorySatisfactory20700
March 200647.4Functionally obsoleteSatisfactoryGoodSatisfactory24100
November 200347.7Functionally obsoleteSatisfactoryGoodSatisfactory21527
November 200147.8Functionally obsoleteGoodGoodGood20900
November 199956.8Not deficientGoodGoodGood20601
November 199756.8Not deficientGoodGoodGood20600
November 199557.8Not deficientGoodGoodGood18400
November 199363.4Not deficientGoodGoodGood18400
November 199161.4Not deficientGoodGoodSatisfactory18400