COUNTY HIGHWAY over NIOBRARA RIVER
Map
Coordinates:
+42.51333, -102.5600042°30'48" N, 102°33'36" W
Facts
Source: National Bridge Inventory. Information not verified; use at your own risk.
Name: | COUNTY HIGHWAY over NIOBRARA RIVER |
Structure number: | C008117005 |
Location: | #20/S87 12S 6.9E |
Purpose: | Carries highway over waterway |
Route classification: | Local (Rural) [09] |
Length of largest span: | 58.1 ft. [17.7 m] |
Total length: | 60.0 ft. [18.3 m] |
Roadway width between curbs: | 14.8 ft. [4.5 m] |
Deck width edge-to-edge: | 14.8 ft. [4.5 m] |
Owner: | County Highway Agency [02] |
Year built: | 1981 |
Historic significance: | Bridge is not eligible for the National Register of Historic Places [5] |
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: September 2017
Good/Fair/Poor Condition: | Fair |
Status: | Posted for load [P] |
Average daily traffic: | 5 [as of 2003] |
Deck condition: | Fair [5 out of 9] |
Superstructure condition: | Fair [5 out of 9] |
Substructure condition: | Satisfactory [6 out of 9] |
Structural appraisal: | Basically intolerable requiring high priority of corrrective action [3] |
Deck geometry appraisal: | Equal to present minimum criteria [6] |
Water adequacy appraisal: | Equal to present minimum criteria [6] |
Roadway alignment appraisal: | Better than present minimum criteria [7] |
Channel protection: | Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6] |
Pier/abutment protection: | Navigation protection not required [1] |
Scour condition: | Bridge foundations determined to be stable for the assessed or calculated scour condition. [8] |
Sufficiency rating: | 31.1 |
Recommended work: | Widening of existing bridge with deck rehabilitation or replacement. [34] |
Previous Inspections
Date | Condition | Deck | Superstructure | Substructure | ADT | Suff. Rating |
---|
September 2017 | Fair | Fair | Fair | Satisfactory | 5 | 31.1 |
September 2015 | Fair | Fair | Fair | Satisfactory | 5 | 32.1 |
September 2013 | Fair | Fair | Fair | Satisfactory | 5 | 32.1 |
January 2012 | Fair | Fair | Fair | Satisfactory | 5 | 32.3 |
February 2010 | Fair | Satisfactory | Satisfactory | Good | 5 | 43.3 |
February 2008 | Good | Good | Good | Good | 5 | 45.8 |
October 2005 | Good | Good | Good | Good | 5 | 45.8 |
December 2003 | Good | Good | Good | Good | 5 | 45.8 |
November 2001 | Good | Good | Good | Good | 5 | 45.8 |
November 1999 | Good | Good | Good | Good | 5 | 45.8 |
November 1997 | Good | Good | Good | Good | 5 | 45.8 |
November 1995 | Good | Good | Good | Good | 5 | 45.8 |
December 1993 | Good | Good | Good | Good | 5 | 45.8 |
November 1991 | Good | Good | Good | Good | 5 | 52.9 |