123RD. S.W. over BLACK RIVER


+46.90912, -123.01992
46°54'33" N, 123°01'12" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:123RD. S.W. over BLACK RIVER
Structure number:083428000000000
Location:0.37m W of Littlerock Rd
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:60.0 ft. [18.3 m]
Total length:180.1 ft. [54.9 m]
Roadway width between curbs:28.9 ft. [8.8 m]
Deck width edge-to-edge:32.2 ft. [9.8 m]
Skew angle:45°
Owner:County Highway Agency [02]
Year built:1986
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:3
Main spans material:Prestressed concrete [5]
Main spans design:Slab [01]
Deck type:Concrete Precast Panels [2]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2016 

Status:Open, no restriction [A]
Average daily traffic:229 [as of 2016]
Truck traffic:15% of total traffic
Deck condition:Very Good [8 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 minimum criteria [6]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:98.0 tons [89.1 metric tons]
Inventory rating:63.4 tons [57.6 metric tons]
Sufficiency rating:97.9
Estimated cost of work:$86,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201697.9Not deficientVery GoodGoodGood229
August 201497.9Not deficientVery GoodGoodGood229
August 201299.9Not deficientVery GoodGoodGood239
September 201099.9Not deficientVery GoodGoodGood239
September 200899.9Not deficientVery GoodGoodGood239
October 200699.9Not deficientVery GoodGoodGood239
October 200499.9Not deficientVery GoodGoodGood239
December 200299.9Not deficientVery GoodGoodGood239
December 200099.9Not deficientVery GoodGoodGood239
December 199899.9Not deficientVery GoodVery GoodGood217
September 199699.9Not deficientVery GoodVery GoodGood388
January 199599.9Not deficientVery GoodVery GoodGood388
February 199399.9Not deficientVery GoodVery GoodGood389
February 199199.9Not deficientVery GoodVery GoodVery Good389