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OR 99W (HWY 001W) over SW VERMONT ST VIADUCT

Map 

Coordinates:
+45.47613, -122.67964
45°28'34" N, 122°40'47" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:OR 99W (HWY 001W) over SW VERMONT ST VIADUCT
Structure number:01984 01W 00350
Location:0.3 M S OF HWY 40
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:38.1 ft. [11.6 m]
Total length:530.9 ft. [161.8 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:57.4 ft. [17.5 m]
Skew angle:37°
Owner:State Highway Agency [01]
Year built:1934
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:18
Main spans material:Wood or timber [7]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: February 2016 

Status:Open, no restriction [A]
Average daily traffic:17,800 [as of 2014]
Truck traffic:1% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:22.0 tons [20.0 metric tons]
Inventory rating:13.0 tons [11.8 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:40.9
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,992,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
February 201640.9Structurally deficientFairSatisfactorySatisfactory17800
February 201441.3Structurally deficientFairSatisfactorySatisfactory16600
February 201241.3Structurally deficientFairSatisfactorySatisfactory16600
February 201065.3Functionally obsoleteSatisfactoryGoodFair18400
February 200865.0Functionally obsoleteSatisfactoryGoodFair20600
February 200678.6Functionally obsoleteSatisfactoryGoodGood20000
February 200478.6Functionally obsoleteSatisfactoryGoodGood19600
February 200278.7Functionally obsoleteGoodGoodGood19000
February 200076.4Functionally obsoleteGoodGoodGood38000
February 199848.3Structurally deficientGoodGoodPoor16000
February 199677.3Functionally obsoleteGoodGoodSatisfactory15000
February 199454.7Functionally obsoleteGoodSatisfactoryFair12200
February 199249.7Functionally obsoleteGoodSatisfactoryFair12200