US Bridges

State Route 98 over Interstate 8

Good

Imperial County, California · 11-IMP-098-R56.86 · Structure no. 58 0302

Built
1969
56 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
228 ft
2 main spans
Daily traffic
2,000
2018 count
Owner
State
State Highway Agency

About this bridge

State Route 98 over Interstate 8 is a concrete continuous box beam or girders - multiple carrying State Route 98 over Interstate 8 in Imperial County, California. It was built in 1969, 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 2,000 vehicles a day, roughly 27% of them trucks, projected to reach 3,364 by 2041. The structure is 228 ft (69.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 98
CrossesInterstate 8
Location11-IMP-098-R56.86
RouteState Highway 98
Coordinates32.71062, -115.08926
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating51.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length228 ft (69.5 m)
Longest span114 ft (34.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2018)
Projected traffic3,364 by 2041
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 State Route 98 over Interstate 8 built?

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

What condition is State Route 98 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 October 2024.

How much traffic does State Route 98 over Interstate 8 carry?

About 2,000 vehicles per day (2018 count), of which roughly 27% are trucks.

How long is State Route 98 over Interstate 8?

The structure is 228 ft (69.5 m) long with a longest span of 114 ft (34.6 m) and a deck 43 ft wide.

Who owns State Route 98 over Interstate 8?

It is owned by the State Highway Agency.