US Bridges

County Road 29 over Trout Creek

Fair

Routt County, Colorado · 8.0 MI S of CO RD 27 · Structure no. 107002908.00928

Built
1967
58 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
22 ft
1 main span
Daily traffic
38
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 29 over Trout Creek is a steel stringer/multi-beam or girder carrying County Road 29 over Trout Creek in Routt County, Colorado. It was built in 1967, so it is 58 years old, older 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 5 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 38 vehicles a day, roughly 26% of them trucks, projected to reach 46 by 2043. The structure is 22 ft (6.8 m) long and 20 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesCounty Road 29
CrossesTrout Creek
Location8.0 MI S of CO RD 27
RouteCounty Highway 0
CountyRoutt County
StateColorado
Coordinates40.23934, -107.09344
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.6 US tons
Inventory rating18.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length22 ft (6.8 m)
Longest span21 ft (6.4 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38 (2023)
Projected traffic46 by 2043
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road 29 over Trout Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is County Road 29 over Trout 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 October 2024.

How much traffic does County Road 29 over Trout Creek carry?

About 38 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is County Road 29 over Trout Creek?

The structure is 22 ft (6.8 m) long with a longest span of 21 ft (6.4 m) and a deck 20 ft wide.

Who owns County Road 29 over Trout Creek?

It is owned by the County Highway Agency.