US Bridges

Corral Hollow Road over Delta-Mendota Canal

Fair

San Joaquin County, California · 1.5 MI N of I-580 · Structure no. 29C0186

Built
1947
78 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
107 ft
3 main spans
Daily traffic
1,006
2013 count
Owner
County
County Highway Agency

About this bridge

Corral Hollow Road over Delta-Mendota Canal is a concrete continuous tee beam carrying Corral Hollow Road over Delta-Mendota Canal in San Joaquin County, California. It was built in 1947, so it is 78 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 1,006 vehicles a day, roughly 20% of them trucks, projected to reach 1,109 by 2046. The structure is 107 ft (32.6 m) long and 29 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesCorral Hollow Road
CrossesDelta-Mendota Canal
Location1.5 MI N of I-580
RouteCounty Highway 0
CountySan Joaquin County
StateCalifornia
Coordinates37.6916, -121.45277
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
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 alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length107 ft (32.6 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,006 (2013)
Projected traffic1,109 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Corral Hollow Road over Delta-Mendota Canal built?

It was built in 1947, making it 78 years old in 2025.

What condition is Corral Hollow Road over Delta-Mendota 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 June 2024.

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

About 1,006 vehicles per day (2013 count), of which roughly 20% are trucks.

How long is Corral Hollow Road over Delta-Mendota Canal?

The structure is 107 ft (32.6 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns Corral Hollow Road over Delta-Mendota Canal?

It is owned by the County Highway Agency.