Structure CRESTONE-1A · Saguache County, CO

Cottonwood ST over North Crestone Creek

Carries Cottonwood ST over North Crestone Creek, In Town Of Crestone.

Overall conditionPoor

Set by its lowest-rated component: Deck at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 6/9Substructure 6/9

40 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 girder bridge.

Built199135 years old
Length40.0 ft12.2 m
Daily traffic65counted 2022
Last inspectedJanuary 2025every 12 months

Location

StateColorado
CountySaguache
LocationIn Town Of Crestone
CarriesCottonwood ST
CrossesNorth Crestone Creek
Coordinates37.99589, -105.70026

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length40.0 ft (12.2 m)
Max Span20.7 ft (6.3 m)
Deck Width17.4 ft (5.3 m)
Deck Area64.7 sq m
Main Spans1
Year Built1991

Traffic

Avg Daily Traffic65 (2022)
Lanes On Bridge1

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 12 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberCRESTONE-1A

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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