US Bridges

Cottonwood ST over North Crestone Creek

PoorPosted for load

Saguache County, Colorado · In Town of Crestone · Structure no. CRESTONE-1A

Built
1991
34 years old
Condition
Poor
inspected January 2025
Type
Girder and Floorbeam System
Steel
Length
40 ft
1 main span
Daily traffic
65
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Cottonwood ST over North Crestone Creek is a steel girder and floorbeam system carrying Cottonwood ST over North Crestone Creek in Saguache County, Colorado. It was built in 1991, so it is 34 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 65 vehicles a day, projected to reach 80 by 2042. The structure is 40 ft (12.2 m) long and 17 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCottonwood ST
CrossesNorth Crestone Creek
LocationIn Town of Crestone
RouteCity Street 0
Coordinates37.99589, -105.70026
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating4.3 US tons
Inventory rating2.5 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span21 ft (6.3 m)
Deck width17 ft (5.3 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2022)
Projected traffic80 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cottonwood ST over North Crestone Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Cottonwood ST over North Crestone Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2025.

How much traffic does Cottonwood ST over North Crestone Creek carry?

About 65 vehicles per day (2022 count).

How long is Cottonwood ST over North Crestone Creek?

The structure is 40 ft (12.2 m) long with a longest span of 21 ft (6.3 m) and a deck 17 ft wide.

Who owns Cottonwood ST over North Crestone Creek?

It is owned by the Town or Township Highway Agency.