US Bridges

CO RD 864 over Little Cimarron River

Good

Gunnison County, Colorado · 12.7 MI NE Owl Ck Pass · Structure no. GUN864-04.70A

Built
1991
34 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
12
2022 count
Owner
County
County Highway Agency

About this bridge

CO RD 864 over Little Cimarron River is a steel stringer/multi-beam or girder carrying CO RD 864 over Little Cimarron River in Gunnison 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12 vehicles a day, projected to reach 13 by 2042. The structure is 52 ft (15.7 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesCO RD 864
CrossesLittle Cimarron River
Location12.7 MI NE Owl Ck Pass
RouteCounty Highway 0
Coordinates38.32575, -107.47211
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87.7 US tons
Inventory rating52.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.7 m)
Longest span47 ft (14.4 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12 (2022)
Projected traffic13 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 864 over Little Cimarron River built?

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

What condition is CO RD 864 over Little Cimarron River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does CO RD 864 over Little Cimarron River carry?

About 12 vehicles per day (2022 count).

How long is CO RD 864 over Little Cimarron River?

The structure is 52 ft (15.7 m) long with a longest span of 47 ft (14.4 m) and a deck 34 ft wide.

Who owns CO RD 864 over Little Cimarron River?

It is owned by the County Highway Agency.