US Bridges

Knott Ave over Coyote Crk

Fair

Los Angeles County, California · 0.1MI N/O I-5 Fwy · Structure no. 53C1515

Built
1967
58 years old, rebuilt 1998
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
88 ft
1 main span
Daily traffic
12,495
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Knott Ave over Coyote Crk is a prestressed concrete stringer/multi-beam or girder carrying Knott Ave over Coyote Crk in Los Angeles County, California. It was built in 1967 and reconstructed in 1998, so it is 58 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 12,495 vehicles a day, roughly 7% of them trucks, projected to reach 14,369 by 2043. The structure is 88 ft (26.7 m) long and 65 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesKnott Ave
CrossesCoyote Crk
Location0.1MI N/O I-5 Fwy
RouteCity Street 0M014
Coordinates33.87783, -118.01135
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating77.8 US tons
Inventory rating44.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length88 ft (26.7 m)
Longest span85 ft (25.9 m)
Deck width65 ft (19.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,495 (2013)
Projected traffic14,369 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Knott Ave over Coyote Crk built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1998.

What condition is Knott Ave over Coyote 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 May 2023.

How much traffic does Knott Ave over Coyote Crk carry?

About 12,495 vehicles per day (2013 count), of which roughly 7% are trucks.

How long is Knott Ave over Coyote Crk?

The structure is 88 ft (26.7 m) long with a longest span of 85 ft (25.9 m) and a deck 65 ft wide.

Who owns Knott Ave over Coyote Crk?

It is owned by the City or Municipal Highway Agency.