Share:

COUNTY HIGHWAY over NIOBRARA RIVER

Map

Coordinates:
+42.87667, -100.26667
42°52'36" N, 100°16'00" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:COUNTY HIGHWAY over NIOBRARA RIVER
Structure number:C001611805
Location:13.5E OF VALENTINE
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:149.0 ft. [45.4 m]
Total length:149.9 ft. [45.7 m]
Roadway width between curbs:13.1 ft. [4.0 m]
Deck width edge-to-edge:14.1 ft. [4.3 m]
Vertical clearance above deck:15.7 ft. [4.8 m]
Owner:County Highway Agency [02]
Year built:1899
Historic significance:Bridge is on the National Register of Historic Places [1]
Main span material:Steel [3]
Main span design:Truss - Thru [10]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: June 2017

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:2 [as of 1997]
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Basically intolerable requiring high priority of corrrective action [3]
Channel protection:Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:20.7
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017PoorSatisfactoryPoorPoor220.7
June 2016PoorSatisfactoryPoorPoor221.7
June 2013PoorSatisfactoryPoorPoor221.7
January 2012PoorSatisfactoryPoorPoor222.0
February 2010PoorGoodPoorPoor222.0
June 2008PoorFairPoorFair221.0
March 2008PoorPoorCriticalFair219.0
June 2007PoorSatisfactorySeriousFair222.0
May 2005PoorSatisfactorySeriousFair222.0
December 2003PoorGoodSeriousFair222.0
October 2001PoorGoodSeriousFair222.0
June 1999PoorGoodSeriousFair222.0
September 1997FairGoodFairFair222.0
December 1995FairExcellentFairFair222.0
November 1993FairExcellentFairFair222.0
November 1991FairExcellentFairFair222.0