US Bridges

Ramp/Connector 210 over Big Dalton Wash

Good

Los Angeles County, California · 07-LA-210-R41.87-GDR · Structure no. 53 2060K

Built
1969
56 years old, rebuilt 2010
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
135 ft
3 main spans
Daily traffic
9,500
2017 count
Owner
State
State Highway Agency

About this bridge

Ramp/Connector 210 over Big Dalton Wash is a concrete continuous box beam or girders - multiple carrying Ramp/Connector 210 over Big Dalton Wash in Los Angeles County, California. It was built in 1969 and reconstructed in 2010, so it is 56 years old, older 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 9,500 vehicles a day, roughly 2% of them trucks, projected to reach 10,019 by 2042. The structure is 135 ft (41.1 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRamp/Connector 210
CrossesBig Dalton Wash
Location07-LA-210-R41.87-GDR
RouteInterstate 210
CountyLos Angeles County
StateCalifornia
Coordinates34.12007, -117.86794
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 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 alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span71 ft (21.6 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,500 (2017)
Projected traffic10,019 by 2042
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 Ramp/Connector 210 over Big Dalton Wash built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2010.

What condition is Ramp/Connector 210 over Big Dalton 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 February 2025.

How much traffic does Ramp/Connector 210 over Big Dalton Wash carry?

About 9,500 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Ramp/Connector 210 over Big Dalton Wash?

The structure is 135 ft (41.1 m) long with a longest span of 71 ft (21.6 m) and a deck 40 ft wide.

Who owns Ramp/Connector 210 over Big Dalton Wash?

It is owned by the State Highway Agency.