Structure HIN05-17.00A · Hinsdale County, CO

County Road 5 over Rock Creek

Carries County Road 5 over Rock Creek, 16.5 Mi NE Of Lake City.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

50 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 slab bridge.

Built199828 years old
Length49.9 ft15.2 m
Daily traffic41counted 2022
Last inspectedOctober 2024every 24 months

Location

StateColorado
CountyHinsdale
Location16.5 Mi NE Of Lake City
CarriesCounty Road 5
CrossesRock Creek
Coordinates38.12389, -107.03753

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length49.9 ft (15.2 m)
Max Span46.9 ft (14.3 m)
Deck Width32.5 ft (9.9 m)
Deck Area150.5 sq m
Main Spans1
Year Built1998

Traffic

Avg Daily Traffic41 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberHIN05-17.00A

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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