US Bridges

Rustic Glen DR over Unknown Wash

Good

Los Angeles County, California · 0.3MI N/O SR-60 Fwy · Structure no. 53C1803

Built
1978
47 years old
Condition
Good
inspected December 2021
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
2,040
2012 count
Owner
City
City or Municipal Highway Agency

About this bridge

Rustic Glen DR over Unknown Wash is a concrete culvert carrying Rustic Glen DR over Unknown Wash in Los Angeles County, California. It was built in 1978, so it is 47 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 2,040 vehicles a day, roughly 2% of them trucks, projected to reach 2,244 by 2041. The structure is 23 ft (7 m) long and 68 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesRustic Glen DR
CrossesUnknown Wash
Location0.3MI N/O SR-60 Fwy
RouteCity Street 0
Coordinates34.02879, -117.77509
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width68 ft (20.6 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,040 (2012)
Projected traffic2,244 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

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 Rustic Glen DR over Unknown Wash built?

It was built in 1978, making it 47 years old in 2025.

What condition is Rustic Glen DR over Unknown Wash 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 December 2021.

How much traffic does Rustic Glen DR over Unknown Wash carry?

About 2,040 vehicles per day (2012 count), of which roughly 2% are trucks.

How long is Rustic Glen DR over Unknown Wash?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 68 ft wide.

Who owns Rustic Glen DR over Unknown Wash?

It is owned by the City or Municipal Highway Agency.