US Bridges

E129-N101-W129 over San Juan Creek

Good

San Benito County, California · 05-SBT-101-R4.85 · Structure no. 43 0042E

Built
1967
58 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
3,700
2009 count
Owner
State
State Highway Agency

About this bridge

E129-N101-W129 over San Juan Creek is a concrete continuous culvert carrying E129-N101-W129 over San Juan Creek in San Benito County, California. It was built in 1967, so it is 58 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 3,700 vehicles a day, roughly 3% of them trucks, projected to reach 6,039 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesE129-N101-W129
CrossesSan Juan Creek
Location05-SBT-101-R4.85
RouteState Highway 101
Coordinates36.88116, -121.56088
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2009)
Projected traffic6,039 by 2042
Trucks3%
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

OwnerState Highway Agency
Maintained byState 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 E129-N101-W129 over San Juan Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is E129-N101-W129 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 April 2024.

How much traffic does E129-N101-W129 over San Juan Creek carry?

About 3,700 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is E129-N101-W129 over San Juan Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns E129-N101-W129 over San Juan Creek?

It is owned by the State Highway Agency.