US Bridges

Maple ST-W210 over W210-S710 & W210 Conn

Fair

Los Angeles County, California · 07-LA-210-R25.21-PAS · Structure no. 53 2259K

Built
1974
51 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
296 ft
2 main spans
Daily traffic
25,400
2015 count
Owner
State
State Highway Agency

About this bridge

Maple ST-W210 over W210-S710 & W210 Conn is a prestressed concrete continuous box beam or girders - multiple carrying Maple ST-W210 over W210-S710 & W210 Conn in Los Angeles County, California. It was built in 1974, so it is 51 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 25,400 vehicles a day, roughly 5% of them trucks, projected to reach 29,005 by 2042. The structure is 296 ft (90.2 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMaple ST-W210
CrossesW210-S710 & W210 Conn
Location07-LA-210-R25.21-PAS
RouteState Highway 210
CountyLos Angeles County
StateCalifornia
Coordinates34.15151, -118.15244
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 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 alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length296 ft (90.2 m)
Longest span165 ft (50.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,400 (2015)
Projected traffic29,005 by 2042
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Maple ST-W210 over W210-S710 & W210 Conn built?

It was built in 1974, making it 51 years old in 2025.

What condition is Maple ST-W210 over W210-S710 & W210 Conn 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 October 2023.

How much traffic does Maple ST-W210 over W210-S710 & W210 Conn carry?

About 25,400 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Maple ST-W210 over W210-S710 & W210 Conn?

The structure is 296 ft (90.2 m) long with a longest span of 165 ft (50.3 m) and a deck 26 ft wide.

Who owns Maple ST-W210 over W210-S710 & W210 Conn?

It is owned by the State Highway Agency.