US Bridges

Stockton Ave over Soquel Creek

Poor

Santa Cruz County, California · At the Esplanade · Structure no. 36C0110

Built
1934
91 years old
Condition
Poor
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
137 ft
3 main spans
Daily traffic
15,000
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Stockton Ave over Soquel Creek is a concrete continuous box beam or girders - multiple carrying Stockton Ave over Soquel Creek in Santa Cruz County, California. It was built in 1934, so it is 91 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 15,000 vehicles a day, roughly 10% of them trucks, projected to reach 20,403 by 2041. The structure is 137 ft (41.8 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesStockton Ave
CrossesSoquel Creek
LocationAt the Esplanade
RouteCity Street 0
Coordinates36.9723, -121.95318
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length137 ft (41.8 m)
Longest span85 ft (25.9 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2014)
Projected traffic20,403 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$880,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stockton Ave over Soquel Creek built?

It was built in 1934, making it 91 years old in 2025.

What condition is Stockton Ave over Soquel Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Stockton Ave over Soquel Creek carry?

About 15,000 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Stockton Ave over Soquel Creek?

The structure is 137 ft (41.8 m) long with a longest span of 85 ft (25.9 m) and a deck 42 ft wide.

Who owns Stockton Ave over Soquel Creek?

It is owned by the City or Municipal Highway Agency.