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2-LANE ROAD over WEST FORK ROCK CREEK

Carbon County, Montana

Map

Coordinates:
+45.15872, -109.38306
45°09'31" N, 109°22'59" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:2-LANE ROAD over WEST FORK ROCK CREEK
Structure number:010802000000182
Location:8 MILES WEST OF RED LODGE
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:26.9 ft. [8.2 m]
Total length:28.5 ft. [8.7 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:25.3 ft. [7.7 m]
Skew angle:15°
Owner:U.S. Forest Service [64]
Year built:1965
Historic significance:Historical significance is not determinable at this time [4]
Design load:M 18 / H 20 [4]
Main span material:Wood or timber [7]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:50
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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 conditions; field review indicates action is required. [4]
Sufficiency rating:73.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairSatisfactoryGoodSatisfactory5073.8
July 2015FairSatisfactoryGoodSatisfactory5074.8
September 2013GoodGoodVery GoodGood5092.8
August 2011GoodGoodGoodGood5092.5
September 2009FairSatisfactoryFairSatisfactory5078.5
August 2007FairVery GoodVery GoodSatisfactory5092.5
October 2003FairVery GoodVery GoodSatisfactory5097.0
June 2001GoodVery GoodVery GoodVery Good5097.0
September 1999GoodVery GoodVery GoodVery Good5097.0
September 1997GoodVery GoodVery GoodVery Good50100.0
August 1995GoodVery GoodVery GoodVery Good50100.0