US Bridges

County Road 34 over Grand Valley Canal

Fair

Mesa County, Colorado · .4 MI S of F RD · Structure no. MESA-34-E.4

Built
1970
55 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
1,247
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 34 over Grand Valley Canal is a prestressed concrete tee beam carrying County Road 34 over Grand Valley Canal in Mesa County, Colorado. It was built in 1970, so it is 55 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 1,247 vehicles a day, roughly 2% of them trucks, projected to reach 1,459 by 2042. The structure is 39 ft (11.8 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCounty Road 34
CrossesGrand Valley Canal
Location.4 MI S of F RD
RouteCounty Highway 0
CountyMesa County
StateColorado
Coordinates39.08447, -108.42241
Functional classUrban 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
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 typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.8 m)
Longest span36 ft (11 m)
Deck width23 ft (7 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,247 (2022)
Projected traffic1,459 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$111,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 34 over Grand Valley Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is County Road 34 over Grand Valley Canal 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 34 over Grand Valley Canal carry?

About 1,247 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 34 over Grand Valley Canal?

The structure is 39 ft (11.8 m) long with a longest span of 36 ft (11 m) and a deck 23 ft wide.

Who owns County Road 34 over Grand Valley Canal?

It is owned by the County Highway Agency.