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NE 55TH AVE over B-112 X COLUMBIA SLOUGH

Map 

Coordinates:
+45.57624, -122.60645
45°34'34" N, 122°36'23" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:NE 55TH AVE over B-112 X COLUMBIA SLOUGH
Structure number:25B112000000000
Location:AT N E CORNFOOT ROAD
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Local (Urban) [19]
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:44.3 ft. [13.5 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:1,103 [as of 2010]
Truck traffic:25% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Equal to present minimum criteria [6]
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:70.8 tons [64.4 metric tons]
Inventory rating:41.9 tons [38.1 metric tons]
Sufficiency rating:76.1

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201476.1Not deficientGoodGoodGood1103
July 201276.1Not deficientGoodGoodGood1103
August 201076.1Not deficientGoodGoodGood1103
November 200876.1Not deficientGoodGoodGood1103
June 200679.5Not deficientGoodVery GoodGood1060
September 200479.5Not deficientGoodVery GoodGood1060
July 200279.8Not deficientVery GoodVery GoodVery Good1030
August 200080.1Not deficientExcellentExcellentExcellent1000
April 199880.1Not deficientExcellentExcellentExcellent1000
August 199780.1Not deficientExcellentExcellentExcellent1000
January 199684.1Not deficientExcellentExcellentExcellent600
September 199586.1Not deficientExcellentExcellentExcellent500
October 199386.1Not deficientExcellentExcellentExcellent500
November 199187.6Not deficientExcellentExcellentExcellent300