US Bridges

State Route 60 over Rowland Channel

Good

Los Angeles County, California · 07-LA-060-17.64 · Structure no. 53 2192

Built
1967
58 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
240,000
2017 count
Owner
State
State Highway Agency

About this bridge

State Route 60 over Rowland Channel is a concrete continuous culvert carrying State Route 60 over Rowland Channel in Los Angeles County, California. It was built in 1967, 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 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 240,000 vehicles a day, roughly 11% of them trucks, projected to reach 298,675 by 2046. The structure is 26 ft (7.8 m) long and 162 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesState Route 60
CrossesRowland Channel
Location07-LA-060-17.64
RouteState Highway 60
Coordinates33.99814, -117.93656
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 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 adequacy8: Equal 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 Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span13 ft (4 m)
Deck width162 ft (49.5 m)
Roadway width162 ft (49.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240,000 (2017)
Projected traffic298,675 by 2046
Trucks11%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 60 over Rowland Channel built?

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

What condition is State Route 60 over Rowland Channel 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 State Route 60 over Rowland Channel carry?

About 240,000 vehicles per day (2017 count), of which roughly 11% are trucks.

How long is State Route 60 over Rowland Channel?

The structure is 26 ft (7.8 m) long with a longest span of 13 ft (4 m) and a deck 162 ft wide.

Who owns State Route 60 over Rowland Channel?

It is owned by the State Highway Agency.