US Bridges

Sesnon Blvd over Moonshine Canyon

Fair

Los Angeles County, California · 0.2 M E/O Porter Ranch RD · Structure no. 53C1976

Built
1989
36 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
115 ft
1 main span
Daily traffic
3,920
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sesnon Blvd over Moonshine Canyon is a concrete box beam or girders - multiple carrying Sesnon Blvd over Moonshine Canyon in Los Angeles County, California. It was built in 1989, so it is 36 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 6 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 3,920 vehicles a day, roughly 2% of them trucks, projected to reach 5,650 by 2046. The structure is 115 ft (35 m) long and 95 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSesnon Blvd
CrossesMoonshine Canyon
Location0.2 M E/O Porter Ranch RD
RouteCity Street 0
CountyLos Angeles County
StateCalifornia
Coordinates34.2938, -118.56978
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length115 ft (35 m)
Longest span109 ft (33.2 m)
Deck width95 ft (29 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,920 (2018)
Projected traffic5,650 by 2046
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Sesnon Blvd over Moonshine Canyon built?

It was built in 1989, making it 36 years old in 2025.

What condition is Sesnon Blvd over Moonshine Canyon 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 July 2024.

How much traffic does Sesnon Blvd over Moonshine Canyon carry?

About 3,920 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Sesnon Blvd over Moonshine Canyon?

The structure is 115 ft (35 m) long with a longest span of 109 ft (33.2 m) and a deck 95 ft wide.

Who owns Sesnon Blvd over Moonshine Canyon?

It is owned by the City or Municipal Highway Agency.