US Bridges

State Route 25 over Willow Creek

Good

San Benito County, California · 05-SBT-025-28.23 · Structure no. 43 0014

Built
1966
59 years old
Condition
Good
inspected April 2022
Type
Slab
Concrete Continuous
Length
67 ft
2 main spans
Daily traffic
760
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 25 over Willow Creek is a concrete continuous slab carrying State Route 25 over Willow Creek in San Benito County, California. It was built in 1966, so it is 59 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 760 vehicles a day, roughly 11% of them trucks, projected to reach 5,480 by 2044. The structure is 67 ft (20.3 m) long and 34 ft wide. If it were closed, the detour would be 90.1 mi (145 km).

CarriesState Route 25
CrossesWillow Creek
Location05-SBT-025-28.23
RouteState Highway 25
Coordinates36.594, -121.19473
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating76.8 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length67 ft (20.3 m)
Longest span32 ft (9.8 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic760 (2009)
Projected traffic5,480 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed90.1 mi (145 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was State Route 25 over Willow Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is State Route 25 over Willow Creek 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 April 2022.

How much traffic does State Route 25 over Willow Creek carry?

About 760 vehicles per day (2009 count), of which roughly 11% are trucks.

How long is State Route 25 over Willow Creek?

The structure is 67 ft (20.3 m) long with a longest span of 32 ft (9.8 m) and a deck 34 ft wide.

Who owns State Route 25 over Willow Creek?

It is owned by the State Highway Agency.