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 

Good/Fair/Poor Condition:Good
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. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201697.9GoodVery GoodGoodGood-229
August 201497.9GoodVery GoodGoodGood-229
August 201299.9GoodVery GoodGoodGood-239
September 201099.9GoodVery GoodGoodGood-239
September 200899.9GoodVery GoodGoodGood-239
October 200699.9GoodVery GoodGoodGood-239
October 200499.9GoodVery GoodGoodGood-239
December 200299.9GoodVery GoodGoodGood-239
December 200099.9GoodVery GoodGoodGood-239
December 199899.9GoodVery GoodVery GoodGood-217
September 199699.9GoodVery GoodVery GoodGood-388
January 199599.9GoodVery GoodVery GoodGood-388
February 199399.9GoodVery GoodVery GoodGood-389
February 199199.9GoodVery GoodVery GoodVery Good-389