US Bridges

Ave 31E over I-8

Fair

Yuma County, Arizona · 30.7 MI E JCT US 95 · Structure no. 01335

Built
1965
60 years old
Condition
Fair
inspected February 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
262 ft
4 main spans
Daily traffic
240
2022 count
Owner
State
State Highway Agency

About this bridge

Ave 31E over I-8 is a concrete continuous box beam or girders - single or spread carrying Ave 31E over I-8 in Yuma County, Arizona. It was built in 1965, so it is 60 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 240 vehicles a day, roughly 10% of them trucks, projected to reach 250 by 2042. The structure is 262 ft (79.9 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesAve 31E
CrossesI-8
Location30.7 MI E JCT US 95
RouteCounty Highway 0
CountyYuma County
StateArizona
Coordinates32.6696, -114.1079
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.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length262 ft (79.9 m)
Longest span85 ft (25.9 m)
Deck width31 ft (9.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2022)
Projected traffic250 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 Ave 31E over I-8 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Ave 31E over I-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 February 2023.

How much traffic does Ave 31E over I-8 carry?

About 240 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ave 31E over I-8?

The structure is 262 ft (79.9 m) long with a longest span of 85 ft (25.9 m) and a deck 31 ft wide.

Who owns Ave 31E over I-8?

It is owned by the State Highway Agency.