US Bridges

SR 9/RIVER Street over Hillside

Good

Santa Cruz County, California · 05-SCR-009-4.00 · Structure no. 36 0130

Built
2023
2 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
300 ft
8 main spans
Daily traffic
5,570
2016 count
Owner
State
State Highway Agency

About this bridge

SR 9/RIVER Street over Hillside is a concrete continuous slab carrying SR 9/RIVER Street over Hillside in Santa Cruz County, California. It was built in 2023, so it is 2 years old, younger 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 5,570 vehicles a day, roughly 4% of them trucks, projected to reach 7,235 by 2046. The structure is 300 ft (91.5 m) long and 15 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSR 9/RIVER Street
CrossesHillside
Location05-SCR-009-4.00
RouteState Highway 9
Coordinates37.02681, -122.05894
Functional classRural Major Collector

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.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHL 93
Structure length300 ft (91.5 m)
Longest span40 ft (12.2 m)
Deck width15 ft (4.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,570 (2016)
Projected traffic7,235 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 SR 9/RIVER Street over Hillside built?

It was built in 2023, making it 2 years old in 2025.

What condition is SR 9/RIVER Street over Hillside 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 June 2024.

How much traffic does SR 9/RIVER Street over Hillside carry?

About 5,570 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is SR 9/RIVER Street over Hillside?

The structure is 300 ft (91.5 m) long with a longest span of 40 ft (12.2 m) and a deck 15 ft wide.

Who owns SR 9/RIVER Street over Hillside?

It is owned by the State Highway Agency.