US Bridges

East Zayante RD over Zayante Creek

Fair

Santa Cruz County, California · 3.7 MI N Graham Hill RD · Structure no. 36C0143

Built
1955
70 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
2 main spans
Daily traffic
2,000
2016 count
Owner
County
County Highway Agency

About this bridge

East Zayante RD over Zayante Creek is a steel stringer/multi-beam or girder carrying East Zayante RD over Zayante Creek in Santa Cruz County, California. It was built in 1955, so it is 70 years old, older 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 2,000 vehicles a day, roughly 8% of them trucks, projected to reach 2,095 by 2043. The structure is 51 ft (15.4 m) long and 26 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

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CarriesEast Zayante RD
CrossesZayante Creek
Location3.7 MI N Graham Hill RD
RouteCounty Highway 0
CountySanta Cruz County
StateCalifornia
Coordinates37.08931, -122.04464
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length51 ft (15.4 m)
Longest span34 ft (10.4 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2016)
Projected traffic2,095 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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 1955, making it 70 years old in 2025.

What condition is East Zayante RD over Zayante Creek 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 October 2023.

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

About 2,000 vehicles per day (2016 count), of which roughly 8% are trucks.

How long is East Zayante RD over Zayante Creek?

The structure is 51 ft (15.4 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.

Who owns East Zayante RD over Zayante Creek?

It is owned by the County Highway Agency.