US Bridges

San Frcsquto Ca RD over San Francisquito Cyn Crk

FairClosed to traffic

Los Angeles County, California · 9.7MI N/O Bouquet Cyn RD · Structure no. 53C0517

Built
1944
81 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
30 ft
2 main spans
Daily traffic
1
2017 count
Owner
County
County Highway Agency

About this bridge

San Frcsquto Ca RD over San Francisquito Cyn Crk is a concrete slab carrying San Frcsquto Ca RD over San Francisquito Cyn Crk in Los Angeles County, California. It was built in 1944, so it is 81 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. Its operating status is: closed to all traffic.

It carries about 1 vehicles a day, roughly 1% of them trucks, projected to reach 1 by 2043. The structure is 30 ft (9.1 m) long and 22 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesSan Frcsquto Ca RD
CrossesSan Francisquito Cyn Crk
Location9.7MI N/O Bouquet Cyn RD
RouteCounty Highway 0Q066
Coordinates34.53626, -118.52736
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1 (2017)
Projected traffic1 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was San Frcsquto Ca RD over San Francisquito Cyn Crk built?

It was built in 1944, making it 81 years old in 2025.

What condition is San Frcsquto Ca RD over San Francisquito Cyn Crk 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 March 2024.

How much traffic does San Frcsquto Ca RD over San Francisquito Cyn Crk carry?

About 1 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is San Frcsquto Ca RD over San Francisquito Cyn Crk?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m) and a deck 22 ft wide.

Who owns San Frcsquto Ca RD over San Francisquito Cyn Crk?

It is owned by the County Highway Agency.