US Bridges

County Road 129 over White River

Fair

Rio Blanco County, Colorado · 0.27 MI S of ST HWY 64 · Structure no. RIOB-129-00.27

Built
1936
89 years old, rebuilt 2001
Condition
Fair
inspected September 2024
Type
Truss - Thru
Steel
Length
103 ft
1 main span
Daily traffic
57
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 129 over White River is a steel truss - thru carrying County Road 129 over White River in Rio Blanco County, Colorado. It was built in 1936 and reconstructed in 2001, so it is 89 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 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 57 vehicles a day, roughly 40% of them trucks, projected to reach 68 by 2043. The structure is 103 ft (31.5 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Road 129
CrossesWhite River
Location0.27 MI S of ST HWY 64
RouteCounty Highway 0
CountyRio Blanco County
StateColorado
Coordinates40.02253, -108.11994
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.8 US tons
Inventory rating20.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length103 ft (31.5 m)
Longest span98 ft (30 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57 (2023)
Projected traffic68 by 2043
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 129 over White River built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 2001.

What condition is County Road 129 over White 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 September 2024.

How much traffic does County Road 129 over White River carry?

About 57 vehicles per day (2023 count), of which roughly 40% are trucks.

How long is County Road 129 over White River?

The structure is 103 ft (31.5 m) long with a longest span of 98 ft (30 m) and a deck 31 ft wide.

Who owns County Road 129 over White River?

It is owned by the County Highway Agency.