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OLD HWY 312 over TWELVE MILE CREEK 169

Map

Coordinates:
+45.90640, -108.37522
45°54'23" N, 108°22'31" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:OLD HWY 312 over TWELVE MILE CREEK 169
Structure number:L56788010+03001
Location:2M W HUNTLEY
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:24.9 ft. [7.6 m]
Total length:102.0 ft. [31.1 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:32.2 ft. [9.8 m]
Owner:State Highway Agency [01]
Year built:1947
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Wood or timber [7]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Bituminous [6]

Latest Available Inspection: January 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,840 [as of 2015]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
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]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:29.8 tons [27.1 metric tons]
Inventory rating:18.6 tons [16.9 metric tons]
Sufficiency rating:39.9

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201739.9FairSatisfactoryFairFair-4840
January 201569.0FairSatisfactoryFairFair-100
January 201369.0FairSatisfactoryFairFair-100
January 201169.0FairGoodSatisfactoryFair-100
January 200979.0FairSatisfactorySatisfactorySatisfactory-100
January 200779.0FairSatisfactorySatisfactorySatisfactory-100
February 200578.0FairSatisfactorySatisfactorySatisfactory-100
March 200278.0FairSatisfactorySatisfactorySatisfactory-100
April 200078.0FairGoodSatisfactoryGood-100
April 199898.9FairGoodSatisfactoryGood-100
March 199696.9FairVery GoodSatisfactoryGood-100
February 199496.8FairVery GoodSatisfactoryGood-252
February 199296.8FairVery GoodSatisfactoryVery Good-252
May 199096.8GoodVery GoodGoodVery Good-252