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SPILLWAY BRIDGE over SPILLWAY CHANNEL

Columbia County, Washington

Map

Coordinates:
+46.58548, -118.02734
46°35'08" N, 118°01'38" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SPILLWAY BRIDGE over SPILLWAY CHANNEL
Structure number:CEPNPWWA0LGOSPY
Location:LITTLE GOOSE DAM
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:53.8 ft. [16.4 m]
Total length:504.0 ft. [153.6 m]
Roadway width between curbs:21.7 ft. [6.6 m]
Deck width edge-to-edge:24.6 ft. [7.5 m]
Owner:Corps of Engineers (Civil) [70]
Year built:1968
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:8
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: October 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:50 [as of 2008]
Truck traffic:5% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:There are no noticeable or noteworthy deficiencies which affect the condition of the channel. [9]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:97.8
Estimated cost of work:$183,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2018GoodGoodGoodGood5097.8
September 2016GoodGoodGoodGood5097.8
September 2014GoodGoodGoodGood5095.8
September 2012GoodGoodGoodGood5095.8
February 2010GoodGoodGoodGood5091.8
February 2008GoodGoodGoodGood5084.9
March 2006GoodVery GoodVery GoodVery Good5084.9
May 2004GoodVery GoodVery GoodVery Good5084.9
September 2002GoodVery GoodVery GoodVery Good5084.9
September 2000GoodVery GoodVery GoodVery Good5084.9
September 1998GoodVery GoodVery GoodVery Good5084.9
September 1996GoodVery GoodVery GoodVery Good5084.9