US Bridges

County Road 30 over Govt. Highline Canal

Good

Mesa County, Colorado · 0.1 MI N of CR G · Structure no. MESA-30-G.00A

Built
1994
31 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
96
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 30 over Govt. Highline Canal is a prestressed concrete box beam or girders - multiple carrying County Road 30 over Govt. Highline Canal in Mesa County, Colorado. It was built in 1994, so it is 31 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 96 vehicles a day, projected to reach 112 by 2042. The structure is 58 ft (17.7 m) long and 30 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

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CarriesCounty Road 30
CrossesGovt. Highline Canal
Location0.1 MI N of CR G
RouteCounty Highway 0
CountyMesa County
StateColorado
Coordinates39.10592, -108.49658
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating98.8 US tons
Inventory rating59.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span53 ft (16.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2022)
Projected traffic112 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 30 over Govt. Highline Canal built?

It was built in 1994, making it 31 years old in 2025.

What condition is County Road 30 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 February 2024.

How much traffic does County Road 30 over Govt. Highline Canal carry?

About 96 vehicles per day (2022 count).

How long is County Road 30 over Govt. Highline Canal?

The structure is 58 ft (17.7 m) long with a longest span of 53 ft (16.2 m) and a deck 30 ft wide.

Who owns County Road 30 over Govt. Highline Canal?

It is owned by the County Highway Agency.