+47.75721, -111.83798
47°45'26" N, 111°50'17" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:7TH LN NE over DRAINAGE 128
Structure number:L50035005+08001
Location:12M NW POWER
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:29.5 ft. [9.0 m]
Total length:29.9 ft. [9.1 m]
Roadway width between curbs:23.0 ft. [7.0 m]
Deck width edge-to-edge:24.0 ft. [7.3 m]
Skew angle:
Owner:County Highway Agency [02]
Year built:1978
Year reconstructed:1992
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Wood or timber [7]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: October 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:100 [as of 2003]
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present desirable criteria [8]
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]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:85.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2017FairSatisfactorySatisfactoryFair10085.8
October 2015FairSatisfactorySatisfactoryFair10086.8
October 2013FairSatisfactorySatisfactoryFair10086.8
November 2011FairSatisfactoryGoodFair10086.8
October 2009FairSatisfactoryGoodFair10086.8
November 2007FairSatisfactoryGoodFair10086.8
December 2005FairSatisfactoryGoodFair10086.8
December 2003FairGoodGoodFair10086.8
November 2001FairGoodGoodSatisfactory10097.8
December 1999FairGoodGoodSatisfactory10097.8
February 1998FairGoodGoodSatisfactory10097.8
October 1995FairGoodGoodSatisfactory3195.7
September 1992FairVery GoodVery GoodSatisfactory3196.0
January 1991FairFairGoodSatisfactory3186.5

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.5905900
Timber Girder/Beamlinear ft.57145160600
Timber Columneach145450
Timber Abutmentlinear ft.894336100
Timber Pier Caplinear ft.49251860
Timber Decksq. ft.721072100