US Bridges

Imperial HWY over Milan Crk

Good

Los Angeles County, California · 0.5MI E/O Valley View Ave · Structure no. 53C1889

Built
1987
38 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete
Length
38 ft
1 main span
Daily traffic
30,066
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Imperial HWY over Milan Crk is a concrete culvert carrying Imperial HWY over Milan Crk in Los Angeles County, California. It was built in 1987, so it is 38 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 30,066 vehicles a day, roughly 10% of them trucks, projected to reach 36,079 by 2042. The structure is 38 ft (11.6 m) long and 184 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesImperial HWY
CrossesMilan Crk
Location0.5MI E/O Valley View Ave
RouteCity Street 0L100
Coordinates33.91731, -118.01947
Functional classUrban Other Principal Arterial

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 inspectionNovember 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 adequacy9: Superior 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
DeckNot applicable
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span20 ft (6.1 m)
Deck width184 ft (56 m)
Roadway width81 ft (24.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,066 (2014)
Projected traffic36,079 by 2042
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 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 Imperial HWY over Milan Crk built?

It was built in 1987, making it 38 years old in 2025.

What condition is Imperial HWY over Milan 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 November 2021.

How much traffic does Imperial HWY over Milan Crk carry?

About 30,066 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Imperial HWY over Milan Crk?

The structure is 38 ft (11.6 m) long with a longest span of 20 ft (6.1 m) and a deck 184 ft wide.

Who owns Imperial HWY over Milan Crk?

It is owned by the City or Municipal Highway Agency.