SH 121 ML over DRAW


+39.61524, -105.09136
39°36'55" N, 105°05'29" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SH 121 ML over DRAW
Structure number:F-16-DL
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:9.8 ft. [3.0 m]
Total length:21.0 ft. [6.4 m]
Deck width edge-to-edge:196.9 ft. [60.0 m]
Owner:State Highway Agency [01]
Year built:1965
Year reconstructed:1973
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:2
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: October 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:49,000 [as of 2011]
Truck traffic:3% of total traffic
Structural appraisal:Equal to present minimum criteria [6]
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]
Culvert condition:Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:89.8 tons [81.6 metric tons]
Inventory rating:80.0 tons [72.7 metric tons]
Sufficiency rating:68.1

Previous Inspections

DateSuff. RatingConditionCulvert ConditionSD/FOADT
October 201668.1Fair6 out of 10-49000
October 201468.1Fair6 out of 10-49000
December 201267.7Fair6 out of 10-50200
November 201067.7Fair6 out of 10-50200
January 200967.7Fair6 out of 10-50200
January 200767.2Fair6 out of 10-52100
December 200467.0Fair6 out of 10-53089
November 200268.0Fair6 out of 10-49232
November 200067.3Fair6 out of 10-51600
January 199967.3Fair6 out of 10-51600
October 199670.5Fair6 out of 10-50800
December 199471.1Fair6 out of 10-50800
October 199270.0Fair6 out of 10-48600
November 199074.0Fair6 out of 10-33000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Culvertlinear ft.39433534250
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.2020000
Steel Protective Coatingsq. ft.10,75310,753000