US Bridges

I-8 WB over Paloma Road

Fair

Maricopa County, Arizona · 9.1 MI W JCT SR 85 · Structure no. 00567

Built
1960
65 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
97 ft
3 main spans
Daily traffic
5,601
2021 count
Owner
State
State Highway Agency

About this bridge

I-8 WB over Paloma Road is a concrete continuous slab carrying I-8 WB over Paloma Road in Maricopa County, Arizona. It was built in 1960, so it is 65 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 5,601 vehicles a day, roughly 26% of them trucks, projected to reach 5,611 by 2041. The structure is 97 ft (29.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-8 WB
CrossesPaloma Road
Location9.1 MI W JCT SR 85
RouteInterstate 8
CountyMaricopa County
StateArizona
Coordinates32.9219, -112.8881
Functional classRural 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 rating68 US tons
Inventory rating41 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span36 ft (11 m)
Deck width43 ft (13.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deck19 ft (5.9 m)

Traffic and service

Average daily traffic5,601 (2021)
Projected traffic5,611 by 2041
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 WB over Paloma Road built?

It was built in 1960, making it 65 years old in 2025.

What condition is I-8 WB over Paloma Road 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 WB over Paloma Road carry?

About 5,601 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is I-8 WB over Paloma Road?

The structure is 97 ft (29.6 m) long with a longest span of 36 ft (11 m) and a deck 43 ft wide.

Who owns I-8 WB over Paloma Road?

It is owned by the State Highway Agency.