US Bridges

County Road 33.75 over Grand Valley Canal

Fair

Mesa County, Colorado · 0.25 MI N of RD E.25 · Structure no. MESA-33.75-E.5

Built
1967
58 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
280
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 33.75 over Grand Valley Canal is a steel stringer/multi-beam or girder carrying County Road 33.75 over Grand Valley Canal in Mesa County, Colorado. It was built in 1967, so it is 58 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 280 vehicles a day, roughly 2% of them trucks, projected to reach 328 by 2042. The structure is 40 ft (12.2 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCounty Road 33.75
CrossesGrand Valley Canal
Location0.25 MI N of RD E.25
RouteCounty Highway 0
CountyMesa County
StateColorado
Coordinates39.08497, -108.42711
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.
Substructure7 GoodSome minor problems.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.3 US tons
Inventory rating33.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span37 ft (11.2 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2022)
Projected traffic328 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 33.75 over Grand Valley Canal built?

It was built in 1967, making it 58 years old in 2025.

What condition is County Road 33.75 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 33.75 over Grand Valley Canal carry?

About 280 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 33.75 over Grand Valley Canal?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.2 m) and a deck 28 ft wide.

Who owns County Road 33.75 over Grand Valley Canal?

It is owned by the County Highway Agency.