US Bridges

Old Santa Cruz HWY over Hillside

Fair

Santa Cruz County, California · 0.7 Miles N of SR 17 · Structure no. 36C0155

Built
1984
41 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
106 ft
6 main spans
Daily traffic
500
2016 count
Owner
County
County Highway Agency

About this bridge

Old Santa Cruz HWY over Hillside is a wood or timber stringer/multi-beam or girder carrying Old Santa Cruz HWY over Hillside in Santa Cruz County, California. It was built in 1984, so it is 41 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 500 vehicles a day, roughly 1% of them trucks, projected to reach 524 by 2043. The structure is 106 ft (32.4 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesOld Santa Cruz HWY
CrossesHillside
Location0.7 Miles N of SR 17
RouteCounty Highway 0
CountySanta Cruz County
StateCalifornia
Coordinates37.13548, -121.97919
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating28.9 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans6
Design loadUnknown
Structure length106 ft (32.4 m)
Longest span19 ft (5.8 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2016)
Projected traffic524 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Old Santa Cruz HWY over Hillside built?

It was built in 1984, making it 41 years old in 2025.

What condition is Old Santa Cruz HWY over Hillside in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Old Santa Cruz HWY over Hillside carry?

About 500 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Old Santa Cruz HWY over Hillside?

The structure is 106 ft (32.4 m) long with a longest span of 19 ft (5.8 m) and a deck 24 ft wide.

Who owns Old Santa Cruz HWY over Hillside?

It is owned by the County Highway Agency.