US Bridges

State Route 9 NB over Hillside

Good

Santa Cruz County, California · 05-SCR-009-10.75 · Structure no. 36 0109

Built
2002
23 years old, rebuilt 2022
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
156 ft
5 main spans
Daily traffic
10,000
2018 count
Owner
State
State Highway Agency

About this bridge

State Route 9 NB over Hillside is a concrete continuous slab carrying State Route 9 NB over Hillside in Santa Cruz County, California. It was built in 2002 and reconstructed in 2022, so it is 23 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 10,000 vehicles a day, roughly 4% of them trucks, projected to reach 22,000 by 2042. The structure is 156 ft (47.7 m) long and 12 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesState Route 9 NB
CrossesHillside
Location05-SCR-009-10.75
RouteState Highway 9
Coordinates37.10138, -122.10312
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.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be 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 spans5
Design loadHS 20 + Mod
Structure length156 ft (47.7 m)
Longest span31 ft (9.5 m)
Deck width12 ft (3.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2018)
Projected traffic22,000 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed3.1 mi (5 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 State Route 9 NB over Hillside built?

It was built in 2002, making it 23 years old in 2025. It was reconstructed in 2022.

What condition is State Route 9 NB 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 State Route 9 NB over Hillside carry?

About 10,000 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is State Route 9 NB over Hillside?

The structure is 156 ft (47.7 m) long with a longest span of 31 ft (9.5 m) and a deck 12 ft wide.

Who owns State Route 9 NB over Hillside?

It is owned by the State Highway Agency.