US Bridges

East Cliff Drive over Corcoran Lagoon

Fair

Santa Cruz County, California · 0.1 MI East of 21st Ave · Structure no. 36C0008

Built
1978
47 years old
Condition
Fair
inspected September 2023
Type
Slab
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
4,125
2015 count
Owner
County
County Highway Agency

About this bridge

East Cliff Drive over Corcoran Lagoon is a prestressed concrete slab carrying East Cliff Drive over Corcoran Lagoon in Santa Cruz County, California. It was built in 1978, so it is 47 years old, younger 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 5 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 4,125 vehicles a day, roughly 8% of them trucks, projected to reach 4,208 by 2041. The structure is 28 ft (8.5 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesEast Cliff Drive
CrossesCorcoran Lagoon
Location0.1 MI East of 21st Ave
RouteCounty Highway 0
CountySanta Cruz County
StateCalifornia
Coordinates36.96071, -121.98436
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span25 ft (7.7 m)
Deck width40 ft (12.1 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,125 (2015)
Projected traffic4,208 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 East Cliff Drive over Corcoran Lagoon built?

It was built in 1978, making it 47 years old in 2025.

What condition is East Cliff Drive over Corcoran Lagoon 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 September 2023.

How much traffic does East Cliff Drive over Corcoran Lagoon carry?

About 4,125 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is East Cliff Drive over Corcoran Lagoon?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.7 m) and a deck 40 ft wide.

Who owns East Cliff Drive over Corcoran Lagoon?

It is owned by the County Highway Agency.