US Bridges

I-8 EB over Frontage RD

Fair

Yuma County, Arizona · 12.8 MI E JCT US 95 · Structure no. 01192

Built
1966
59 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
94 ft
3 main spans
Daily traffic
9,466
2021 count
Owner
State
State Highway Agency

About this bridge

I-8 EB over Frontage RD is a concrete continuous slab carrying I-8 EB over Frontage RD in Yuma County, Arizona. It was built in 1966, so it is 59 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 9,466 vehicles a day, roughly 26% of them trucks, projected to reach 9,473 by 2041. The structure is 94 ft (28.7 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-8 EB
CrossesFrontage RD
Location12.8 MI E JCT US 95
RouteInterstate 8
CountyYuma County
StateArizona
Coordinates32.6673, -114.398
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span35 ft (10.7 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,466 (2021)
Projected traffic9,473 by 2041
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-8 EB over Frontage RD built?

It was built in 1966, making it 59 years old in 2025.

What condition is I-8 EB over Frontage RD 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 2023.

How much traffic does I-8 EB over Frontage RD carry?

About 9,466 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is I-8 EB over Frontage RD?

The structure is 94 ft (28.7 m) long with a longest span of 35 ft (10.7 m) and a deck 41 ft wide.

Who owns I-8 EB over Frontage RD?

It is owned by the State Highway Agency.