+38.54066, -106.22489
38°32'26" N, 106°13'30" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 50 ML over LOST CREEK
Structure number:J-12-AA
Location:7.6 MI W. OF PONCHA SPGS.
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:29.9 ft. [9.1 m]
Total length:33.5 ft. [10.2 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:33.5 ft. [10.2 m]
Owner:State Highway Agency [01]
Year built:1939
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 18+Mod / HS 20+Mod [6]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:2,200 [as of 2011]
Truck traffic:21% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:44.9 tons [40.8 metric tons]
Inventory rating:27.0 tons [24.5 metric tons]
Sufficiency rating:64.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201564.0FairSatisfactorySatisfactorySatisfactory-2200
April 201364.0FairSatisfactorySatisfactorySatisfactory-2200
June 201164.0FairSatisfactorySatisfactorySatisfactory-2200
May 200964.0FairSatisfactorySatisfactorySatisfactory-2200
May 200764.0FairSatisfactorySatisfactoryGood-2600
May 200564.0FairSatisfactorySatisfactoryGood-2261
April 200370.3FairSatisfactorySatisfactoryGood-2331
June 200163.7FairSatisfactoryGoodGood-2331
May 199963.7FairSatisfactoryGoodGood-2261
May 199764.7FairSatisfactoryGoodGood-1950
June 199564.7FairSatisfactoryGoodGood-1950
February 199358.7FairSatisfactoryGoodGood-2050
May 199159.7FairSatisfactoryGoodGood-1650

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.155758000
Steel Protective Coatingsq. ft.155758000
Reinforced Concrete Decksq. ft.1,1221,122000
Wearing Surfacessq. ft.1,0051,005000
Concrete Protective Coatingsq. ft.1,0051,005000
Reinforced Concrete Abutmentlinear ft.6766100
Movable Bearingeach53200
Fixed Bearingeach53200
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.6868000
Steel Protective Coatingsq. ft.6868000