SH 121 ML NBND over US 287 ML, RR SPUR


+39.91811, -105.09098
39°55'05" N, 105°05'28" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SH 121 ML NBND over US 287 ML, RR SPUR
Structure number:E-16-HR
Purpose:Carries highway overpass over highway and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:113.5 ft. [34.6 m]
Total length:453.4 ft. [138.2 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:30.5 ft. [9.3 m]
Vertical clearance below bridge:23.0 ft. [7.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1972
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:4
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: December 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:23,500 [as of 2011]
Truck traffic:4% of total traffic
Deck condition:Good [7 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:Basically intolerable requiring high priority of corrrective action [3]
Underclearances appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:77.3
Estimated cost of work:$2,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
December 2018FairGoodSatisfactorySatisfactory2350077.3
December 2016FairGoodSatisfactorySatisfactory2350077.3
December 2014FairGoodSatisfactorySatisfactory2350077.3
January 2013FairGoodGoodSatisfactory2520077.2
November 2010FairGoodGoodSatisfactory2520077.2
January 2009FairGoodGoodSatisfactory2520077.2
January 2007FairGoodGoodSatisfactory2655077.2
April 2005FairGoodGoodSatisfactory2807977.1
January 2003FairGoodGoodSatisfactory2546977.1
December 2000FairGoodGoodSatisfactory2235075.8
December 1998FairGoodGoodSatisfactory2235075.8
March 1997FairGoodGoodSatisfactory1620076.6
December 1994FairGoodGoodSatisfactory1620077.6
November 1992FairGoodGoodSatisfactory1510078.5
January 1991FairGoodGoodSatisfactory1790078.3

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,7965738993240
Steel Protective Coatingsq. ft.1,7962461,1004500
Reinforced Concrete Decksq. ft.13,82911,4782,35100
Wearing Surfacessq. ft.12,69211,79290000
Reinforced Concrete Pier Walllinear ft.90721530
Reinforced Concrete Abutmentlinear ft.62521000
Strip Seal Jointlinear ft.5655100
Movable Bearingeach80710
Steel Protective Coatingsq. ft.80008
Fixed Bearingeach1212000
Steel Protective Coatingsq. ft.1200120
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.906906000
Steel Protective Coatingsq. ft.906906000