US Bridges

San Juan Highway over San Juan Creek

Good

San Benito County, California · 0.6 MI S Anzar RD · Structure no. 43C0058

Built
2002
23 years old
Condition
Good
inspected January 2025
Type
Slab
Concrete
Length
49 ft
1 main span
Daily traffic
4,500
2010 count
Owner
County
County Highway Agency

About this bridge

San Juan Highway over San Juan Creek is a concrete slab carrying San Juan Highway over San Juan Creek in San Benito County, California. It was built in 2002, so it is 23 years old, younger 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 4,500 vehicles a day, roughly 10% of them trucks, projected to reach 5,239 by 2043. The structure is 49 ft (14.8 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSan Juan Highway
CrossesSan Juan Creek
Location0.6 MI S Anzar RD
RouteCounty Highway 0
Coordinates36.86643, -121.55425
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating59.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length49 ft (14.8 m)
Longest span45 ft (13.7 m)
Deck width36 ft (11.1 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,500 (2010)
Projected traffic5,239 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 San Juan Highway over San Juan Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is San Juan Highway over San Juan 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 January 2025.

How much traffic does San Juan Highway over San Juan Creek carry?

About 4,500 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is San Juan Highway over San Juan Creek?

The structure is 49 ft (14.8 m) long with a longest span of 45 ft (13.7 m) and a deck 36 ft wide.

Who owns San Juan Highway over San Juan Creek?

It is owned by the County Highway Agency.