US Bridges

W210-FOOTHILL Off over Michillinda Ave & Onramp

Fair

Los Angeles County, California · 07-LA-210-R29.81-ADA · Structure no. 53 2020K

Built
1971
54 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
386 ft
4 main spans
Daily traffic
7,500
2015 count
Owner
State
State Highway Agency

About this bridge

W210-FOOTHILL Off over Michillinda Ave & Onramp is a concrete continuous box beam or girders - multiple carrying W210-FOOTHILL Off over Michillinda Ave & Onramp in Los Angeles County, California. It was built in 1971, so it is 54 years old, younger 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 7,500 vehicles a day, roughly 2% of them trucks, projected to reach 12,800 by 2042. The structure is 386 ft (117.7 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesW210-FOOTHILL Off
CrossesMichillinda Ave & Onramp
Location07-LA-210-R29.81-ADA
RouteInterstate 210
CountyLos Angeles County
StateCalifornia
Coordinates34.14914, -118.06816
Functional classUrban Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length386 ft (117.7 m)
Longest span110 ft (33.5 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2015)
Projected traffic12,800 by 2042
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was W210-FOOTHILL Off over Michillinda Ave & Onramp built?

It was built in 1971, making it 54 years old in 2025.

What condition is W210-FOOTHILL Off over Michillinda Ave & Onramp 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 W210-FOOTHILL Off over Michillinda Ave & Onramp carry?

About 7,500 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is W210-FOOTHILL Off over Michillinda Ave & Onramp?

The structure is 386 ft (117.7 m) long with a longest span of 110 ft (33.5 m) and a deck 38 ft wide.

Who owns W210-FOOTHILL Off over Michillinda Ave & Onramp?

It is owned by the State Highway Agency.