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LOWER GEM HILL RD over CANYON CREEK;GEM BR

Map

Coordinates:
+47.50850, -115.86711
47°30'31" N, 115°52'02" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LOWER GEM HILL RD over CANYON CREEK;GEM BR
Structure number:000000000030830
Location:0.1 S. 0.1 E. GEM
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:35.1 ft. [10.7 m]
Total length:41.0 ft. [12.5 m]
Roadway width between curbs:12.8 ft. [3.9 m]
Deck width edge-to-edge:15.4 ft. [4.7 m]
Skew angle:25°
Owner:County Highway Agency [02]
Year built:1982
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: June 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:50 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 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:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Basically intolerable requiring high priority of corrrective action [3]
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 with "unknown" foundation that has not been evaluated for scour. [U]
Operating rating:65.9 tons [59.9 metric tons]
Inventory rating:46.5 tons [42.3 metric tons]
Sufficiency rating:57.4
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$458,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201557.4FairFairFairFairFO50
June 201357.4FairFairFairFairFO50
June 201157.4FairFairFairFairFO50
June 200958.4FairSatisfactoryGoodFairFO50
June 200758.2FairGoodGoodFairFO50
June 200558.2FairGoodGoodFairFO50
June 200358.2FairGoodGoodFairFO50
June 200158.2FairGoodGoodFairFO50
June 199958.2FairGoodSatisfactoryFairFO50
June 199757.2FairFairSatisfactoryFairFO50
June 199558.4FairSatisfactorySatisfactoryFairFO50
June 199358.4FairSatisfactoryGoodFairFO50
June 199158.4FairGoodGoodFairFO50

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.1111091100
Steel Protective Coatingsq. ft.740518148740
Timber Floor Beamlinear ft.650482130380
Substructure
Reinforced Concrete Abutmentlinear ft.59044150
Deck
Timber Decksq. ft.603059760
Bearings
Elastomeric Bearingeach60600