US Bridges

County Road 57 over Big Timber Creek

Fair

Cheyenne County, Colorado · .1 MI S of CR Z · Structure no. CY57-S0.1-ZA

Built
1989
36 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
187 ft
3 main spans
Daily traffic
19
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 57 over Big Timber Creek is a prestressed concrete tee beam carrying County Road 57 over Big Timber Creek in Cheyenne County, Colorado. It was built in 1989, so it is 36 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 19 vehicles a day, projected to reach 24 by 2042. The structure is 187 ft (56.9 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Road 57
CrossesBig Timber Creek
Location.1 MI S of CR Z
RouteCounty Highway 0
CountyCheyenne County
StateColorado
Coordinates38.94402, -102.11011
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating37.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length187 ft (56.9 m)
Longest span61 ft (18.5 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19 (2022)
Projected traffic24 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 County Road 57 over Big Timber Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is County Road 57 over Big Timber Creek 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 December 2023.

How much traffic does County Road 57 over Big Timber Creek carry?

About 19 vehicles per day (2022 count).

How long is County Road 57 over Big Timber Creek?

The structure is 187 ft (56.9 m) long with a longest span of 61 ft (18.5 m) and a deck 34 ft wide.

Who owns County Road 57 over Big Timber Creek?

It is owned by the County Highway Agency.