US Bridges

State Route 17 over Moorpark Avenue

Good

Santa Clara County, California · 04-SCL-017-13.85-SJS · Structure no. 37 0139

Built
1959
66 years old, rebuilt 1971
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
130 ft
1 main span
Daily traffic
184,800
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 17 over Moorpark Avenue is a steel stringer/multi-beam or girder carrying State Route 17 over Moorpark Avenue in Santa Clara County, California. It was built in 1959 and reconstructed in 1971, so it is 66 years old, older 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 184,800 vehicles a day, roughly 4% of them trucks, projected to reach 244,840 by 2044. The structure is 130 ft (39.6 m) long and 145 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesState Route 17
CrossesMoorpark Avenue
Location04-SCL-017-13.85-SJS
RouteState Highway 17
Coordinates37.31599, -121.94008
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length130 ft (39.6 m)
Longest span67 ft (20.4 m)
Deck width145 ft (44.3 m)
Roadway width141 ft (43 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic184,800 (2017)
Projected traffic244,840 by 2044
Trucks4%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Moorpark Avenue built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1971.

What condition is State Route 17 over Moorpark Avenue 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 July 2024.

How much traffic does State Route 17 over Moorpark Avenue carry?

About 184,800 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is State Route 17 over Moorpark Avenue?

The structure is 130 ft (39.6 m) long with a longest span of 67 ft (20.4 m) and a deck 145 ft wide.

Who owns State Route 17 over Moorpark Avenue?

It is owned by the State Highway Agency.