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NE 47TH AVE over B-93 X COLUMBIA SLOUGH

Map

Coordinates:
+45.57475, -122.61402
45°34'29" N, 122°36'50" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts

Name:NE 47TH AVE over B-93 X COLUMBIA SLOUGH
Structure number:51C07A000 00001
Location:00.2 MI N OF COL BLVD
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:52.2 ft. [15.9 m]
Total length:55.1 ft. [16.8 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:45.3 ft. [13.8 m]
Skew angle:20°
Owner:City or Municipal Highway Agency [04]
Year built:1991
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 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:4,781 [as of 2010]
Truck traffic:10% 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: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 minimum criteria [6]
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:79.9 tons [72.6 metric tons]
Inventory rating:47.9 tons [43.5 metric tons]
Sufficiency rating:94.9

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201694.9GoodGoodGoodGood-4781
July 201494.9GoodGoodGoodGood-4781
July 201289.8GoodGoodGoodGood-4781
August 201089.8GoodGoodGoodGood-4781
November 200889.8GoodGoodGoodGood-4781
September 200689.8GoodGoodGoodGood-4596
October 200491.8GoodVery GoodVery GoodGood-4596
September 200291.9GoodVery GoodVery GoodGood-4462
August 200091.9GoodVery GoodVery GoodVery Good-4250
January 199991.9GoodExcellentExcellentVery Good-4250
February 199791.8GoodExcellentExcellentExcellent-4650
March 199591.9GoodExcellentExcellentExcellent-4650
April 199391.9GoodExcellentExcellentVery Good-4650
May 199191.0GoodExcellentExcellentGood-4100