US Bridges

County Road 129 over Hot Spring Creek

Good

Routt County, Colorado · 4.9 MI N of US HWY 40 · Structure no. 107012905.0071

Built
1996
29 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
2,812
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 129 over Hot Spring Creek is a concrete culvert carrying County Road 129 over Hot Spring Creek in Routt County, Colorado. It was built in 1996, so it is 29 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 2,812 vehicles a day, roughly 33% of them trucks, projected to reach 3,346 by 2042. The structure is 22 ft (6.7 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road 129
CrossesHot Spring Creek
Location4.9 MI N of US HWY 40
RouteCounty Highway 0
CountyRoutt County
StateColorado
Coordinates40.55924, -106.88895
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,812 (2023)
Projected traffic3,346 by 2042
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 129 over Hot Spring Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is County Road 129 over Hot Spring Creek 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 October 2024.

How much traffic does County Road 129 over Hot Spring Creek carry?

About 2,812 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is County Road 129 over Hot Spring Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 38 ft wide.

Who owns County Road 129 over Hot Spring Creek?

It is owned by the County Highway Agency.