US Bridges

Canyon Road over San Luis Canal

Good

Merced County, California · 2.8 MI S Pioneer Road · Structure no. 39C0260

Built
1968
57 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
308 ft
4 main spans
Daily traffic
260
2015 count
Owner
Federal
Bureau of Reclamation

About this bridge

Canyon Road over San Luis Canal is a prestressed concrete stringer/multi-beam or girder carrying Canyon Road over San Luis Canal in Merced County, California. It was built in 1968, so it is 57 years old, older than the California average of 54.8 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 260 vehicles a day, roughly 3% of them trucks, projected to reach 260 by 2035. The structure is 308 ft (93.9 m) long and 29 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesCanyon Road
CrossesSan Luis Canal
Location2.8 MI S Pioneer Road
RouteCounty Highway 0
Coordinates37.00095, -120.90853
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating49.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length308 ft (93.9 m)
Longest span74 ft (22.6 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2015)
Projected traffic260 by 2035
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Reclamation
Maintained byOther State 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 Canyon Road over San Luis Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is Canyon Road over San Luis 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 June 2024.

How much traffic does Canyon Road over San Luis Canal carry?

About 260 vehicles per day (2015 count), of which roughly 3% are trucks.

How long is Canyon Road over San Luis Canal?

The structure is 308 ft (93.9 m) long with a longest span of 74 ft (22.6 m) and a deck 29 ft wide.

Who owns Canyon Road over San Luis Canal?

It is owned by the Bureau of Reclamation and maintained by the Other State Agency.