US Bridges

County Road G.5 over Grand Valley Canal

Fair

Mesa County, Colorado · .6 MI E of RD 25 · Structure no. MESA-G.5-25.6A

Built
1984
41 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
686
2022 count
Owner
County
County Highway Agency

About this bridge

County Road G.5 over Grand Valley Canal is a steel stringer/multi-beam or girder carrying County Road G.5 over Grand Valley Canal in Mesa County, Colorado. It was built in 1984, so it is 41 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 5 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 686 vehicles a day, roughly 2% of them trucks, projected to reach 802 by 2042. The structure is 26 ft (7.9 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCounty Road G.5
CrossesGrand Valley Canal
Location.6 MI E of RD 25
RouteCounty Highway 0
Coordinates39.11358, -108.57816
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36.9 US tons
Inventory rating22 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span24 ft (7.4 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic686 (2022)
Projected traffic802 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road G.5 over Grand Valley Canal built?

It was built in 1984, making it 41 years old in 2025.

What condition is County Road G.5 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 G.5 over Grand Valley Canal carry?

About 686 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road G.5 over Grand Valley Canal?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.4 m) and a deck 33 ft wide.

Who owns County Road G.5 over Grand Valley Canal?

It is owned by the County Highway Agency.