US Bridges

County Road 8 over Gov.Highline Canal

Good

Mesa County, Colorado · 0.5 MI N of CR 5 · Structure no. MESA-8-S.5

Built
1986
39 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 8 over Gov.Highline Canal is a prestressed concrete tee beam carrying County Road 8 over Gov.Highline Canal in Mesa County, Colorado. It was built in 1986, so it is 39 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 300 by 2033. The structure is 35 ft (10.8 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 8
CrossesGov.Highline Canal
Location0.5 MI N of CR 5
RouteCounty Highway 0
Coordinates39.28949, -108.9015
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating62.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
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 traffic200 (2023)
Projected traffic300 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 8 over Gov.Highline Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Road 8 over Gov.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 8 over Gov.Highline Canal carry?

About 200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is County Road 8 over Gov.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 8 over Gov.Highline Canal?

It is owned by the County Highway Agency.