Structure C-01-C · Moffat County, CO

US 40 Ml over Draw

Carries US 40 Ml over Draw, W. Side Of Dinosaur.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
21 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 21 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.

Built1936rebuilt 1970
Length21.0 ft6.4 m
Daily traffic1,900counted 2020
Last inspectedJuly 2024every 24 months

Location

StateColorado
CountyMoffat
LocationW. Side Of Dinosaur
CarriesUS 40 Ml
CrossesDraw
Coordinates40.25190, -109.02000

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length21.0 ft (6.4 m)
Max Span9.8 ft (3 m)
Deck Width69.2 ft (21.1 m)
Deck Area135.0 sq m
Main Spans2
Year Built1936 (reconstructed 1970)

Traffic

Avg Daily Traffic1,900 (2020)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberC-01-C

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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