US Bridges

State Route 9 NB over Hillside

Good

Santa Cruz County, California · 05-SCR-009-3.81 · Structure no. 36 0119

Built
2015
10 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
102 ft
5 main spans
Daily traffic
5,000
2017 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 2015, so it is 10 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 5,000 vehicles a day, projected to reach 5,600 by 2042. The structure is 102 ft (31.1 m) long and 6 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesState Route 9 NB
CrossesHillside
Location05-SCR-009-3.81
RouteState Highway 9
Coordinates37.02315, -122.06131
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 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length102 ft (31.1 m)
Longest span32 ft (9.8 m)
Deck width6 ft (1.8 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2017)
Projected traffic5,600 by 2042
Trucks0%
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 State Route 9 NB over Hillside built?

It was built in 2015, making it 10 years old in 2025.

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 5,000 vehicles per day (2017 count).

How long is State Route 9 NB over Hillside?

The structure is 102 ft (31.1 m) long with a longest span of 32 ft (9.8 m) and a deck 6 ft wide.

Who owns State Route 9 NB over Hillside?

It is owned by the State Highway Agency.