US Bridges

Dogwood Road over Interstate 8

Good

Imperial County, California · 11-IMP-008-R39.00-ECN · Structure no. 58 0351

Built
2017
8 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
200 ft
2 main spans
Daily traffic
4,070
2019 count
Owner
State
State Highway Agency

About this bridge

Dogwood Road over Interstate 8 is a prestressed concrete continuous box beam or girders - multiple carrying Dogwood Road over Interstate 8 in Imperial County, California. It was built in 2017, so it is 8 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 4,070 vehicles a day, roughly 4% of them trucks, projected to reach 9,116 by 2047. The structure is 200 ft (61 m) long and 96 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesDogwood Road
CrossesInterstate 8
Location11-IMP-008-R39.00-ECN
RouteCity Street 0Y565
CountyImperial County
StateCalifornia
Coordinates32.77394, -115.53525
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length200 ft (61 m)
Longest span100 ft (30.5 m)
Deck width96 ft (29.3 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,070 (2019)
Projected traffic9,116 by 2047
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 Dogwood Road over Interstate 8 built?

It was built in 2017, making it 8 years old in 2025.

What condition is Dogwood Road over Interstate 8 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 Dogwood Road over Interstate 8 carry?

About 4,070 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is Dogwood Road over Interstate 8?

The structure is 200 ft (61 m) long with a longest span of 100 ft (30.5 m) and a deck 96 ft wide.

Who owns Dogwood Road over Interstate 8?

It is owned by the State Highway Agency.