US Bridges

Patterson Road over Grand Valley Canal

Fair

Mesa County, Colorado · .7 MI E of RD 26 · Structure no. GRJ-F-26.6A

Built
1985
40 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
24,727
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Patterson Road over Grand Valley Canal is a prestressed concrete tee beam carrying Patterson Road over Grand Valley Canal in Mesa County, Colorado. It was built in 1985, so it is 40 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 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 24,727 vehicles a day, roughly 7% of them trucks, projected to reach 28,931 by 2042. The structure is 48 ft (14.6 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesPatterson Road
CrossesGrand Valley Canal
Location.7 MI E of RD 26
RouteCity Street 0
CountyMesa County
StateColorado
Coordinates39.09186, -108.55886
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.1 US tons
Inventory rating48.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span44 ft (13.4 m)
Deck width77 ft (23.5 m)
Roadway width62 ft (19 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,727 (2022)
Projected traffic28,931 by 2042
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Patterson Road over Grand Valley Canal built?

It was built in 1985, making it 40 years old in 2025.

What condition is Patterson Road 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 Patterson Road over Grand Valley Canal carry?

About 24,727 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Patterson Road over Grand Valley Canal?

The structure is 48 ft (14.6 m) long with a longest span of 44 ft (13.4 m) and a deck 77 ft wide.

Who owns Patterson Road over Grand Valley Canal?

It is owned by the City or Municipal Highway Agency.