US Bridges

E129-N101 Chitten over San Juan Creek

Fair

San Benito County, California · 05-SBT-101-R4.90 · Structure no. 43 0043E

Built
1967
58 years old
Condition
Fair
inspected April 2022
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
7,200
2009 count
Owner
State
State Highway Agency

About this bridge

E129-N101 Chitten over San Juan Creek is a concrete continuous culvert carrying E129-N101 Chitten 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 fair condition with a lowest component rating of 6 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 7,200 vehicles a day, roughly 3% of them trucks, projected to reach 11,884 by 2044. The structure is 23 ft (7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesE129-N101 Chitten
CrossesSan Juan Creek
Location05-SBT-101-R4.90
RouteState Highway 101
Coordinates36.88224, -121.56095
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,200 (2009)
Projected traffic11,884 by 2044
Trucks3%
Lanes on structure3
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was E129-N101 Chitten over San Juan Creek built?

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

What condition is E129-N101 Chitten over San Juan Creek 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 April 2022.

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

About 7,200 vehicles per day (2009 count), of which roughly 3% are trucks.

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

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m).

Who owns E129-N101 Chitten over San Juan Creek?

It is owned by the State Highway Agency.