US Bridges

State Route 156 over Santa Ana Creek

Good

San Benito County, California · 05-SBT-156-R13.43 · Structure no. 43 0045

Built
1997
28 years old
Condition
Good
inspected April 2022
Type
Slab
Concrete Continuous
Length
160 ft
4 main spans
Daily traffic
11,050
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 156 over Santa Ana Creek is a concrete continuous slab carrying State Route 156 over Santa Ana Creek in San Benito County, California. It was built in 1997, so it is 28 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 11,050 vehicles a day, projected to reach 20,857 by 2044. The structure is 160 ft (48.8 m) long and 55 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesState Route 156
CrossesSanta Ana Creek
Location05-SBT-156-R13.43
RouteState Highway 156
Coordinates36.90902, -121.40027
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length160 ft (48.8 m)
Longest span44 ft (13.4 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,050 (2009)
Projected traffic20,857 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

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 156 over Santa Ana Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is State Route 156 over Santa Ana 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 156 over Santa Ana Creek carry?

About 11,050 vehicles per day (2009 count).

How long is State Route 156 over Santa Ana Creek?

The structure is 160 ft (48.8 m) long with a longest span of 44 ft (13.4 m) and a deck 55 ft wide.

Who owns State Route 156 over Santa Ana Creek?

It is owned by the State Highway Agency.