US Bridges

State Route 1 over Hillside Above Ocean

Good

Monterey County, California · 05-MON-001-35.90 · Structure no. 44 0240

Built
1981
44 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
50 ft
3 main spans
Daily traffic
5,000
2010 count
Owner
State
State Highway Agency

About this bridge

State Route 1 over Hillside Above Ocean is a concrete continuous slab carrying State Route 1 over Hillside Above Ocean in Monterey County, California. It was built in 1981, so it is 44 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 5,000 vehicles a day, roughly 1% of them trucks, projected to reach 7,825 by 2045. The structure is 50 ft (15.2 m) long and 10 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 1
CrossesHillside Above Ocean
Location05-MON-001-35.90
RouteState Highway 1
Coordinates36.1594, -121.67141
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length50 ft (15.2 m)
Longest span16 ft (4.9 m)
Deck width10 ft (3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2010)
Projected traffic7,825 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed123.7 mi (199 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 State Route 1 over Hillside Above Ocean built?

It was built in 1981, making it 44 years old in 2025.

What condition is State Route 1 over Hillside Above Ocean 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 February 2023.

How much traffic does State Route 1 over Hillside Above Ocean carry?

About 5,000 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is State Route 1 over Hillside Above Ocean?

The structure is 50 ft (15.2 m) long with a longest span of 16 ft (4.9 m) and a deck 10 ft wide.

Who owns State Route 1 over Hillside Above Ocean?

It is owned by the State Highway Agency.