US Bridges

Ltl Tujunga Cyn RD over Buck Cyn

Good

Los Angeles County, California · 6.0MI N/O Foothill Blvd · Structure no. 53C0967

Built
1928
97 years old, rebuilt 1959
Condition
Good
inspected August 2024
Type
Truss - Thru
Wood or Timber
Length
53 ft
1 main span
Daily traffic
2,053
2017 count
Owner
County
County Highway Agency

About this bridge

Ltl Tujunga Cyn RD over Buck Cyn is a wood or timber truss - thru carrying Ltl Tujunga Cyn RD over Buck Cyn in Los Angeles County, California. It was built in 1928 and reconstructed in 1959, so it is 97 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 2,053 vehicles a day, roughly 1% of them trucks, projected to reach 2,258 by 2043. The structure is 53 ft (16.2 m) long and 27 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesLtl Tujunga Cyn RD
CrossesBuck Cyn
Location6.0MI N/O Foothill Blvd
RouteCounty Highway 0L578
Coordinates34.32861, -118.34119
Functional classRural Minor Collector

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length53 ft (16.2 m)
Longest span50 ft (15.2 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,053 (2017)
Projected traffic2,258 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 Ltl Tujunga Cyn RD over Buck Cyn built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1959.

What condition is Ltl Tujunga Cyn RD over Buck Cyn 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 August 2024.

How much traffic does Ltl Tujunga Cyn RD over Buck Cyn carry?

About 2,053 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Ltl Tujunga Cyn RD over Buck Cyn?

The structure is 53 ft (16.2 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.

Who owns Ltl Tujunga Cyn RD over Buck Cyn?

It is owned by the County Highway Agency.