US Bridges

Hawes ST over Leffingwell Crk

Good

Los Angeles County, California · 0.1MI W/O Colima RD · Structure no. 53C1549

Built
1973
52 years old
Condition
Good
inspected October 2021
Type
Culvert
Concrete
Length
41 ft
1 main span
Daily traffic
1,616
2012 count
Owner
County
County Highway Agency

About this bridge

Hawes ST over Leffingwell Crk is a concrete culvert carrying Hawes ST over Leffingwell Crk in Los Angeles County, California. It was built in 1973, so it is 52 years old, younger 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 1,616 vehicles a day, projected to reach 1,778 by 2042. The structure is 41 ft (12.5 m) long and 121 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHawes ST
CrossesLeffingwell Crk
Location0.1MI W/O Colima RD
RouteCounty Highway 0
Coordinates33.93774, -118.01706
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum 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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span37 ft (11.4 m)
Deck width121 ft (36.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,616 (2012)
Projected traffic1,778 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Hawes ST over Leffingwell Crk built?

It was built in 1973, making it 52 years old in 2025.

What condition is Hawes ST over Leffingwell Crk 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 October 2021.

How much traffic does Hawes ST over Leffingwell Crk carry?

About 1,616 vehicles per day (2012 count).

How long is Hawes ST over Leffingwell Crk?

The structure is 41 ft (12.5 m) long with a longest span of 37 ft (11.4 m) and a deck 121 ft wide.

Who owns Hawes ST over Leffingwell Crk?

It is owned by the County Highway Agency.