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COUNTY HIGHWAY over NIOBRARA RIVER

Map

Coordinates:
+42.85167, -101.52833
42°51'06" N, 101°31'42" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:COUNTY HIGHWAY over NIOBRARA RIVER
Structure number:C001605505P
Location:8E 4.5S OF MERRIMAN
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:58.1 ft. [17.7 m]
Total length:231.0 ft. [70.4 m]
Roadway width between curbs:28.2 ft. [8.6 m]
Deck width edge-to-edge:30.2 ft. [9.2 m]
Skew angle:25°
Owner:County Highway Agency [02]
Year built:1988
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:4
Main spans material:Prestressed concrete [5]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:10 [as of 2003]
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:Better than present minimum criteria [7]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Sufficiency rating:92.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018GoodVery GoodGoodGood1092.8
April 2016GoodVery GoodGoodGood1092.8
April 2014GoodVery GoodGoodGood1092.8
May 2012GoodVery GoodGoodVery Good1097.9
May 2010GoodVery GoodGoodVery Good1097.9
July 2008GoodVery GoodGoodVery Good1097.9
August 2006GoodVery GoodGoodVery Good1097.9
June 2004GoodVery GoodGoodVery Good1097.9
November 2002GoodVery GoodGoodVery Good1097.9
October 2000GoodVery GoodGoodVery Good1097.9
October 1998GoodVery GoodGoodVery Good1097.9
July 1996GoodExcellentExcellentExcellent1097.9
November 1994GoodExcellentExcellentExcellent1097.9
November 1992GoodExcellentExcellentExcellent1097.9
September 1990GoodExcellentExcellentExcellent1097.9