Structure MOF1-00.38 · Moffat County, CO

County Road 1 over Little Snake River

Carries County Road 1 over Little Snake River, 0.4 Mi So Of Wym SH 70.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT81 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 7/9 · sets the rating

81 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built198838 years old
Length80.7 ft24.6 m
Daily traffic176counted 2023
Last inspectedOctober 2023every 24 months

Location

StateColorado
CountyMoffat
Location0.4 Mi So Of Wym SH 70
CarriesCounty Road 1
CrossesLittle Snake River
Coordinates40.99691, -107.37923

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length80.7 ft (24.6 m)
Max Span78.4 ft (23.9 m)
Deck Width24.3 ft (7.4 m)
Deck Area182.0 sq m
Main Spans1
Year Built1988

Traffic

Avg Daily Traffic176 (2023)
Truck Traffic55%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberMOF1-00.38

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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