US Bridges

State Route 1 SB over Buena Vista Drive

Fair

Santa Cruz County, California · 05-SCR-001-R4.07 · Structure no. 36 0092L

Built
1974
51 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
111 ft
1 main span
Daily traffic
15,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 1 SB over Buena Vista Drive is a prestressed concrete box beam or girders - multiple carrying State Route 1 SB over Buena Vista Drive in Santa Cruz County, California. It was built in 1974, so it is 51 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 6 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 15,000 vehicles a day, roughly 5% of them trucks, projected to reach 40,109 by 2045. The structure is 111 ft (33.8 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 1 SB
CrossesBuena Vista Drive
Location05-SCR-001-R4.07
RouteState Highway 1
Coordinates36.93138, -121.81053
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span111 ft (33.8 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2009)
Projected traffic40,109 by 2045
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was State Route 1 SB over Buena Vista Drive built?

It was built in 1974, making it 51 years old in 2025.

What condition is State Route 1 SB over Buena Vista Drive 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 November 2023.

How much traffic does State Route 1 SB over Buena Vista Drive carry?

About 15,000 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is State Route 1 SB over Buena Vista Drive?

The structure is 111 ft (33.8 m) long with a longest span of 111 ft (33.8 m) and a deck 41 ft wide.

Who owns State Route 1 SB over Buena Vista Drive?

It is owned by the State Highway Agency.