US Bridges

Orestimba Road over Delta-Mendota Canal

Good

Stanislaus County, California · 0.2 MI West of Bell Road · Structure no. 38C0205

Built
1949
76 years old
Condition
Good
inspected January 2025
Type
Tee Beam
Concrete Continuous
Length
111 ft
3 main spans
Daily traffic
675
2019 count
Owner
County
County Highway Agency

About this bridge

Orestimba Road over Delta-Mendota Canal is a concrete continuous tee beam carrying Orestimba Road over Delta-Mendota Canal in Stanislaus County, California. It was built in 1949, so it is 76 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 675 vehicles a day, roughly 3% of them trucks, projected to reach 723 by 2047. The structure is 111 ft (33.7 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOrestimba Road
CrossesDelta-Mendota Canal
Location0.2 MI West of Bell Road
RouteCounty Highway 0
Coordinates37.32152, -121.10134
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length111 ft (33.7 m)
Longest span41 ft (12.5 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic675 (2019)
Projected traffic723 by 2047
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Orestimba Road over Delta-Mendota Canal built?

It was built in 1949, making it 76 years old in 2025.

What condition is Orestimba Road over Delta-Mendota 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 January 2025.

How much traffic does Orestimba Road over Delta-Mendota Canal carry?

About 675 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Orestimba Road over Delta-Mendota Canal?

The structure is 111 ft (33.7 m) long with a longest span of 41 ft (12.5 m) and a deck 29 ft wide.

Who owns Orestimba Road over Delta-Mendota Canal?

It is owned by the County Highway Agency.