US Bridges

County Road 6.5 over Govt. Highline Canal

Good

Mesa County, Colorado · .5 MI N of RD S · Structure no. MESA-6.5-S.5

Built
1988
37 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
5
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 6.5 over Govt. Highline Canal is a prestressed concrete tee beam carrying County Road 6.5 over Govt. Highline Canal in Mesa County, Colorado. It was built in 1988, so it is 37 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 5 vehicles a day, projected to reach 6 by 2042. The structure is 35 ft (10.8 m) long and 18 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

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CarriesCounty Road 6.5
CrossesGovt. Highline Canal
Location.5 MI N of RD S
RouteCounty Highway 0
CountyMesa County
StateColorado
Coordinates39.29075, -108.92927
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length35 ft (10.8 m)
Longest span32 ft (9.8 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2022)
Projected traffic6 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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$128,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 6.5 over Govt. Highline Canal built?

It was built in 1988, making it 37 years old in 2025.

What condition is County Road 6.5 over Govt. Highline Canal 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 January 2024.

How much traffic does County Road 6.5 over Govt. Highline Canal carry?

About 5 vehicles per day (2022 count).

How long is County Road 6.5 over Govt. Highline Canal?

The structure is 35 ft (10.8 m) long with a longest span of 32 ft (9.8 m) and a deck 18 ft wide.

Who owns County Road 6.5 over Govt. Highline Canal?

It is owned by the County Highway Agency.