US Bridges

State Route 9 NB over Hillside

Good

Santa Cruz County, California · 05-SCR-009-8.50 · Structure no. 36 0113

Built
2013
12 years old
Condition
Good
inspected May 2022
Type
Slab
Concrete Continuous
Length
138 ft
5 main spans
Daily traffic
21,100
2009 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 2013, so it is 12 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 21,100 vehicles a day, roughly 4% of them trucks, projected to reach 9,525 by 2040. The structure is 138 ft (42.2 m) long and 6 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesState Route 9 NB
CrossesHillside
Location05-SCR-009-8.50
RouteState Highway 9
Coordinates37.0767, -122.08425
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 inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
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 length138 ft (42.2 m)
Longest span27 ft (8.3 m)
Deck width6 ft (1.7 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,100 (2009)
Projected traffic9,525 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed26.1 mi (42 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 2013, making it 12 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 May 2022.

How much traffic does State Route 9 NB over Hillside carry?

About 21,100 vehicles per day (2009 count), of which roughly 4% are trucks.

How long is State Route 9 NB over Hillside?

The structure is 138 ft (42.2 m) long with a longest span of 27 ft (8.3 m) and a deck 6 ft wide.

Who owns State Route 9 NB over Hillside?

It is owned by the State Highway Agency.