US Bridges

County Road 29 over Colorado River

Fair

Mesa County, Colorado · 1 Mile South CR D · Structure no. MESA-29-C.0

Built
2006
19 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
807 ft
6 main spans
Daily traffic
14,568
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 29 over Colorado River is a steel continuous stringer/multi-beam or girder carrying County Road 29 over Colorado River in Mesa County, Colorado. It was built in 2006, so it is 19 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 14,568 vehicles a day, roughly 7% of them trucks, projected to reach 17,044 by 2042. The structure is 807 ft (245.9 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCounty Road 29
CrossesColorado River
Location1 Mile South CR D
RouteCounty Highway 0
CountyMesa County
StateColorado
Coordinates39.04677, -108.51542
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length807 ft (245.9 m)
Longest span159 ft (48.4 m)
Deck width80 ft (24.5 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,568 (2022)
Projected traffic17,044 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 29 over Colorado River built?

It was built in 2006, making it 19 years old in 2025.

What condition is County Road 29 over Colorado 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 February 2024.

How much traffic does County Road 29 over Colorado River carry?

About 14,568 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is County Road 29 over Colorado River?

The structure is 807 ft (245.9 m) long with a longest span of 159 ft (48.4 m) and a deck 80 ft wide.

Who owns County Road 29 over Colorado River?

It is owned by the County Highway Agency.