Structure B-07-F · Moffat County, CO

US 40 Ml over Elkhead River

Carries US 40 Ml over Elkhead River, 6.4 Mi East Of Jct Sh13.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT68 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 68 ft across with 3 openings. Lengths and the car on the deck are drawn to the same scale. 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.

Built199234 years old
Length68.2 ft20.8 m
Daily traffic4,200counted 2020
Last inspectedApril 2024every 24 months

Location

StateColorado
CountyMoffat
Location6.4 Mi East Of Jct Sh13
CarriesUS 40 Ml
CrossesElkhead River
Coordinates40.53103, -107.43630

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length68.2 ft (20.8 m)
Max Span22.0 ft (6.7 m)
Deck Width42.7 ft (13 m)
Deck Area270.4 sq m
Main Spans3
Year Built1992

Traffic

Avg Daily Traffic4,200 (2020)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberB-07-F

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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