US Bridges

Mervel Ave over San Luis Canal

Good

Merced County, California · 0.1 MI W Ortigalita RD · Structure no. 39C0314

Built
1968
57 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
352 ft
5 main spans
Daily traffic
310
2017 count
Owner
Federal
Bureau of Reclamation

About this bridge

Mervel Ave over San Luis Canal is a prestressed concrete stringer/multi-beam or girder carrying Mervel Ave 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 310 vehicles a day, roughly 5% of them trucks, projected to reach 340 by 2037. The structure is 352 ft (107.3 m) long and 28 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesMervel Ave
CrossesSan Luis Canal
Location0.1 MI W Ortigalita RD
RouteCounty Highway 0
Coordinates36.96947, -120.8748
Functional classRural Minor Collector

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 protection8 Very GoodNo 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length352 ft (107.3 m)
Longest span67 ft (20.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2017)
Projected traffic340 by 2037
Trucks5%
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 Mervel Ave over San Luis Canal built?

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

What condition is Mervel Ave 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 Mervel Ave over San Luis Canal carry?

About 310 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Mervel Ave over San Luis Canal?

The structure is 352 ft (107.3 m) long with a longest span of 67 ft (20.4 m) and a deck 28 ft wide.

Who owns Mervel Ave over San Luis Canal?

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