US Bridges

Santa Susana RD over UP RR AMTRAK Metrolink

Fair

Ventura County, California · 0.3 MI S Katherine RD · Structure no. 52C0171

Built
1974
51 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
95 ft
3 main spans
Daily traffic
6,600
2022 count
Owner
County
County Highway Agency

About this bridge

Santa Susana RD over UP RR AMTRAK Metrolink is a prestressed concrete tee beam carrying Santa Susana RD over UP RR AMTRAK Metrolink in Ventura County, California. It was built in 1974, so it is 51 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 6,600 vehicles a day, roughly 1% of them trucks, projected to reach 8,410 by 2044. The structure is 95 ft (29 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSanta Susana RD
CrossesUP RR AMTRAK Metrolink
Location0.3 MI S Katherine RD
RouteCounty Highway 0
CountyVentura County
StateCalifornia
Coordinates34.26086, -118.66059
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating88.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length95 ft (29 m)
Longest span38 ft (11.6 m)
Deck width48 ft (14.6 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2022)
Projected traffic8,410 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Santa Susana RD over UP RR AMTRAK Metrolink built?

It was built in 1974, making it 51 years old in 2025.

What condition is Santa Susana RD over UP RR AMTRAK Metrolink 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 2024.

How much traffic does Santa Susana RD over UP RR AMTRAK Metrolink carry?

About 6,600 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Santa Susana RD over UP RR AMTRAK Metrolink?

The structure is 95 ft (29 m) long with a longest span of 38 ft (11.6 m) and a deck 48 ft wide.

Who owns Santa Susana RD over UP RR AMTRAK Metrolink?

It is owned by the County Highway Agency.