US Bridges

State Route 1 over UP RR & AMTRAK

Fair

Ventura County, California · 07-VEN-001-21.54 · Structure no. 52 0040

Built
1934
91 years old, rebuilt 1961
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
570 ft
1 main span
Daily traffic
4,000
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 1 over UP RR & AMTRAK is a steel stringer/multi-beam or girder carrying State Route 1 over UP RR & AMTRAK in Ventura County, California. It was built in 1934 and reconstructed in 1961, so it is 91 years old, older 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 4,000 vehicles a day, roughly 2% of them trucks, projected to reach 5,238 by 2042. The structure is 570 ft (173.7 m) long and 48 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesState Route 1
CrossesUP RR & AMTRAK
Location07-VEN-001-21.54
RouteState Highway 1
CountyVentura County
StateCalifornia
Coordinates34.29251, -119.33822
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating16.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+11 approach)
Design loadH 15
Structure length570 ft (173.7 m)
Longest span95 ft (29 m)
Deck width48 ft (14.6 m)
Roadway width45 ft (13.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2020)
Projected traffic5,238 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed29.8 mi (48 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 1 over UP RR & AMTRAK built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1961.

What condition is State Route 1 over UP RR & AMTRAK 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 January 2025.

How much traffic does State Route 1 over UP RR & AMTRAK carry?

About 4,000 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is State Route 1 over UP RR & AMTRAK?

The structure is 570 ft (173.7 m) long with a longest span of 95 ft (29 m) and a deck 48 ft wide.

Who owns State Route 1 over UP RR & AMTRAK?

It is owned by the State Highway Agency.