US Bridges

Laurel ST over San Lorenzo River

Good

Santa Cruz County, California · 0.8 MI E of S.R. I · Structure no. 36C0102

Built
1968
57 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
335 ft
1 main span
Daily traffic
18,604
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Laurel ST over San Lorenzo River is a prestressed concrete continuous stringer/multi-beam or girder carrying Laurel ST over San Lorenzo River in Santa Cruz County, California. It was built in 1968, so it is 57 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 18,604 vehicles a day, roughly 10% of them trucks, projected to reach 24,387 by 2041. The structure is 335 ft (102.2 m) long and 86 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLaurel ST
CrossesSan Lorenzo River
Location0.8 MI E of S.R. I
RouteCity Street 0
Coordinates36.96952, -122.02304
Functional classUrban 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating97.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length335 ft (102.2 m)
Longest span170 ft (51.8 m)
Deck width86 ft (26.2 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,604 (2013)
Projected traffic24,387 by 2041
Trucks10%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Laurel ST over San Lorenzo River built?

It was built in 1968, making it 57 years old in 2025.

What condition is Laurel ST over San Lorenzo River 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 September 2023.

How much traffic does Laurel ST over San Lorenzo River carry?

About 18,604 vehicles per day (2013 count), of which roughly 10% are trucks.

How long is Laurel ST over San Lorenzo River?

The structure is 335 ft (102.2 m) long with a longest span of 170 ft (51.8 m) and a deck 86 ft wide.

Who owns Laurel ST over San Lorenzo River?

It is owned by the City or Municipal Highway Agency.