US Bridges

East Zayante RD over Zayante Creek

Good

Santa Cruz County, California · 6.3 MI N Graham Hill RD · Structure no. 36C0037

Built
1942
83 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Concrete
Length
46 ft
1 main span
Daily traffic
2,000
2016 count
Owner
County
County Highway Agency

About this bridge

East Zayante RD over Zayante Creek is a concrete tee beam carrying East Zayante RD over Zayante Creek in Santa Cruz County, California. It was built in 1942, so it is 83 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 2,000 vehicles a day, roughly 10% of them trucks, projected to reach 2,095 by 2043. The structure is 46 ft (14 m) long and 30 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesEast Zayante RD
CrossesZayante Creek
Location6.3 MI N Graham Hill RD
RouteCounty Highway 0
Coordinates37.11247, -122.02052
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length46 ft (14 m)
Longest span41 ft (12.5 m)
Deck width30 ft (9.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2016)
Projected traffic2,095 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed19.9 mi (32 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 Zayante RD over Zayante Creek built?

It was built in 1942, making it 83 years old in 2025.

What condition is East Zayante RD over Zayante 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 October 2023.

How much traffic does East Zayante RD over Zayante Creek carry?

About 2,000 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is East Zayante RD over Zayante Creek?

The structure is 46 ft (14 m) long with a longest span of 41 ft (12.5 m) and a deck 30 ft wide.

Who owns East Zayante RD over Zayante Creek?

It is owned by the County Highway Agency.