SH 121 ML over US 36 ML


+39.91608, -105.09477
39°54'58" N, 105°05'41" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SH 121 ML over US 36 ML
Structure number:E-16-YB
Purpose:Carries highway overpass over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:117.8 ft. [35.9 m]
Total length:299.6 ft. [91.3 m]
Roadway width between curbs:130.9 ft. [39.9 m]
Deck width edge-to-edge:133.9 ft. [40.8 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:20°
Owner:State Highway Agency [01]
Year built:2014
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
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:Good
Status:Open, no restriction [A]
Average daily traffic:18,500 [as of 2011]
Truck traffic:4% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:99.1
Estimated cost of work:$758,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
December 2018GoodVery GoodVery GoodVery Good1850099.1
December 2016GoodVery GoodVery GoodVery Good1850099.1
December 2014GoodVery GoodVery GoodVery Good1850099.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.3,8313,831000
Reinforced Concrete Decksq. ft.40,16040,158200
Wearing Surfacessq. ft.33,11733,117000
Reinforced Concrete Columneach1414000
Reinforced Concrete Abutmentlinear ft.2852711310
Reinforced Concrete Pier Caplinear ft.289286210
Strip Seal Jointlinear ft.285028500
Bridge Rail
Other Material Bridge Raillinear ft.600600000