US Bridges

Cimarron River RD over Cimarron River

Fair

Gunnison County, Colorado · 33 MI S of Montrose · Structure no. 020406000001030

Built
1987
38 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
106 ft
1 main span
Daily traffic
156
2008 count
Owner
Federal
U.S. Forest Service

About this bridge

Cimarron River RD over Cimarron River is a prestressed concrete stringer/multi-beam or girder carrying Cimarron River RD over Cimarron River in Gunnison County, Colorado. It was built in 1987, so it is 38 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 156 vehicles a day, roughly 10% of them trucks, projected to reach 234 by 2045. The structure is 106 ft (32.3 m) long and 26 ft wide. If it were closed, the detour would be 59.7 mi (96 km).

CarriesCimarron River RD
CrossesCimarron River
Location33 MI S of Montrose
RouteFederal Lands Road 858.1
Coordinates38.26038, -107.54589
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length106 ft (32.3 m)
Longest span96 ft (29.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic156 (2008)
Projected traffic234 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed59.7 mi (96 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cimarron River RD over Cimarron River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Cimarron River RD over Cimarron River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Cimarron River RD over Cimarron River carry?

About 156 vehicles per day (2008 count), of which roughly 10% are trucks.

How long is Cimarron River RD over Cimarron River?

The structure is 106 ft (32.3 m) long with a longest span of 96 ft (29.3 m) and a deck 26 ft wide.

Who owns Cimarron River RD over Cimarron River?

It is owned by the U.S. Forest Service.