US Bridges

E210-S57 Connector over San Dimas Ch Lone Hill

Fair

Los Angeles County, California · 07-LA-210-R44.20-GDR · Structure no. 53 2013R

Built
1970
55 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
675 ft
2 main spans
Daily traffic
70,000
2017 count
Owner
State
State Highway Agency

About this bridge

E210-S57 Connector over San Dimas Ch Lone Hill is a prestressed concrete continuous box beam or girders - multiple carrying E210-S57 Connector over San Dimas Ch Lone Hill in Los Angeles County, California. It was built in 1970, so it is 55 years old, older 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 70,000 vehicles a day, roughly 7% of them trucks, projected to reach 76,768 by 2042. The structure is 675 ft (205.8 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesE210-S57 Connector
CrossesSan Dimas Ch Lone Hill
Location07-LA-210-R44.20-GDR
RouteInterstate 210
Coordinates34.12023, -117.82921
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadHS 20
Structure length675 ft (205.8 m)
Longest span146 ft (44.5 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70,000 (2017)
Projected traffic76,768 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was E210-S57 Connector over San Dimas Ch Lone Hill built?

It was built in 1970, making it 55 years old in 2025.

What condition is E210-S57 Connector over San Dimas Ch Lone Hill 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 February 2025.

How much traffic does E210-S57 Connector over San Dimas Ch Lone Hill carry?

About 70,000 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is E210-S57 Connector over San Dimas Ch Lone Hill?

The structure is 675 ft (205.8 m) long with a longest span of 146 ft (44.5 m) and a deck 41 ft wide.

Who owns E210-S57 Connector over San Dimas Ch Lone Hill?

It is owned by the State Highway Agency.