US Bridges

State Route 17 over Hillside

Good

Santa Cruz County, California · 05-SCR-017-8.60 · Structure no. 36 0120

Built
2018
7 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
212 ft
7 main spans
Daily traffic
61,000
2016 count
Owner
State
State Highway Agency

About this bridge

State Route 17 over Hillside is a concrete continuous slab carrying State Route 17 over Hillside in Santa Cruz County, California. It was built in 2018, so it is 7 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 61,000 vehicles a day, roughly 3% of them trucks, projected to reach 77,533 by 2042. The structure is 212 ft (64.5 m) long and 10 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesState Route 17
CrossesHillside
Location05-SCR-017-8.60
RouteState Highway 17
Coordinates37.09372, -121.97797
Functional classRural Principal Arterial - Other

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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHL 93
Structure length212 ft (64.5 m)
Longest span32 ft (9.8 m)
Deck width10 ft (2.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,000 (2016)
Projected traffic77,533 by 2042
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed8.1 mi (13 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 17 over Hillside built?

It was built in 2018, making it 7 years old in 2025.

What condition is State Route 17 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 17 over Hillside carry?

About 61,000 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is State Route 17 over Hillside?

The structure is 212 ft (64.5 m) long with a longest span of 32 ft (9.8 m) and a deck 10 ft wide.

Who owns State Route 17 over Hillside?

It is owned by the State Highway Agency.