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NE ALDERWOOD ROAD over B-113 X COLUMBIA SLOUGH

Map 

Coordinates:
+45.57214, -122.58522
45°34'20" N, 122°35'07" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:NE ALDERWOOD ROAD over B-113 X COLUMBIA SLOUGH
Structure number:25B113000000000
Location:AT N E CORNFOOT ROAD
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:44.9 ft. [13.7 m]
Total length:47.9 ft. [14.6 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:44.0 ft. [13.4 m]
Skew angle:
Owner:City or Municipal Highway Agency [04]
Year built:1989
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Main span material:Prestressed concrete [5]
Main span design:Slab [01]
Deck type:Concrete Precast Panels [2]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2014 

Status:Open, no restriction [A]
Average daily traffic:5,241 [as of 2010]
Truck traffic:25% 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:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Operating rating:78.9 tons [71.7 metric tons]
Inventory rating:46.9 tons [42.6 metric tons]
Sufficiency rating:94.3
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$246,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201494.3Not deficientGoodSatisfactoryGood5241
July 201277.1Functionally obsoleteGoodSatisfactoryGood5241
August 201077.1Functionally obsoleteGoodSatisfactoryGood5241
November 200877.1Functionally obsoleteGoodGoodGood5241
June 200680.1Functionally obsoleteGoodVery GoodVery Good5038
September 200480.1Functionally obsoleteGoodVery GoodVery Good5038
July 200282.1Not deficientVery GoodVery GoodVery Good4892
May 200082.2Not deficientExcellentExcellentExcellent4750
April 199882.3Not deficientExcellentExcellentExcellent4250
August 199782.3Not deficientExcellentExcellentExcellent4250
January 199682.3Not deficientExcellentExcellentExcellent4250
September 199580.2Not deficientExcellentExcellentExcellent4000
October 199380.2Not deficientExcellentExcellentExcellent4000
November 199182.1Not deficientExcellentExcellentExcellent4900