US Bridges

Winterhaven Drive over Interstate 8

Fair

Imperial County, California · 11-IMP-008-R96.55 · Structure no. 58 0311

Built
1973
52 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
208 ft
2 main spans
Daily traffic
12,600
2022 count
Owner
State
State Highway Agency

About this bridge

Winterhaven Drive over Interstate 8 is a concrete continuous box beam or girders - multiple carrying Winterhaven Drive over Interstate 8 in Imperial County, California. It was built in 1973, so it is 52 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 12,600 vehicles a day, roughly 2% of them trucks, projected to reach 19,238 by 2042. The structure is 208 ft (63.4 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWinterhaven Drive
CrossesInterstate 8
Location11-IMP-008-R96.55
RouteCounty Highway 0
CountyImperial County
StateCalifornia
Coordinates32.73181, -114.62457
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 48 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 geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating55.7 US tons
Inventory rating39.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length208 ft (63.4 m)
Longest span103 ft (31.4 m)
Deck width72 ft (21.8 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deck18 ft (5.6 m)

Traffic and service

Average daily traffic12,600 (2022)
Projected traffic19,238 by 2042
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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 Winterhaven Drive over Interstate 8 built?

It was built in 1973, making it 52 years old in 2025.

What condition is Winterhaven Drive over Interstate 8 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 January 2025.

How much traffic does Winterhaven Drive over Interstate 8 carry?

About 12,600 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Winterhaven Drive over Interstate 8?

The structure is 208 ft (63.4 m) long with a longest span of 103 ft (31.4 m) and a deck 72 ft wide.

Who owns Winterhaven Drive over Interstate 8?

It is owned by the State Highway Agency.