US Bridges

State Route 156 over US HWY 101 (@pm 95.44)

Good

Monterey County, California · 05-MON-156-T5.17 · Structure no. 44 0107

Built
1969
56 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
211 ft
2 main spans
Daily traffic
28,750
2011 count
Owner
State
State Highway Agency

About this bridge

State Route 156 over US HWY 101 (@pm 95.44) is a prestressed concrete continuous box beam or girders - multiple carrying State Route 156 over US HWY 101 (@pm 95.44) in Monterey County, California. It was built in 1969, so it is 56 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 28,750 vehicles a day, roughly 9% of them trucks, projected to reach 39,787 by 2044. The structure is 211 ft (64.3 m) long and 56 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesState Route 156
CrossesUS HWY 101 (@pm 95.44)
Location05-MON-156-T5.17
RouteState Highway 156
Coordinates36.78935, -121.66796
Functional classUrban Other Principal 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.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length211 ft (64.3 m)
Longest span110 ft (33.5 m)
Deck width56 ft (17.1 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,750 (2011)
Projected traffic39,787 by 2044
Trucks9%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 US HWY 101 (@pm 95.44) built?

It was built in 1969, making it 56 years old in 2025.

What condition is State Route 156 over US HWY 101 (@pm 95.44) 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 August 2024.

How much traffic does State Route 156 over US HWY 101 (@pm 95.44) carry?

About 28,750 vehicles per day (2011 count), of which roughly 9% are trucks.

How long is State Route 156 over US HWY 101 (@pm 95.44)?

The structure is 211 ft (64.3 m) long with a longest span of 110 ft (33.5 m) and a deck 56 ft wide.

Who owns State Route 156 over US HWY 101 (@pm 95.44)?

It is owned by the State Highway Agency.