US Bridges

Shore Road over Tequisquita Slough Ovfl

Good

San Benito County, California · West of Frazer Lake Road · Structure no. 43C0012

Built
1950
75 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
33 ft
3 main spans
Daily traffic
6,500
2010 count
Owner
County
County Highway Agency

About this bridge

Shore Road over Tequisquita Slough Ovfl is a concrete continuous culvert carrying Shore Road over Tequisquita Slough Ovfl in San Benito County, California. It was built in 1950, so it is 75 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 6,500 vehicles a day, roughly 5% of them trucks, projected to reach 7,432 by 2047. The structure is 33 ft (10 m) long and 32 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesShore Road
CrossesTequisquita Slough Ovfl
LocationWest of Frazer Lake Road
RouteCounty Highway 0
Coordinates36.94196, -121.44686
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length33 ft (10 m)
Longest span11 ft (3.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2010)
Projected traffic7,432 by 2047
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Shore Road over Tequisquita Slough Ovfl built?

It was built in 1950, making it 75 years old in 2025.

What condition is Shore Road over Tequisquita Slough Ovfl 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 Shore Road over Tequisquita Slough Ovfl carry?

About 6,500 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Shore Road over Tequisquita Slough Ovfl?

The structure is 33 ft (10 m) long with a longest span of 11 ft (3.3 m) and a deck 32 ft wide.

Who owns Shore Road over Tequisquita Slough Ovfl?

It is owned by the County Highway Agency.