US Bridges

I-8 EB over Wellton Canal

Fair

Yuma County, Arizona · 29.3 MI E JCT US 95 · Structure no. 01333

Built
1967
58 years old
Condition
Fair
inspected February 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
109 ft
3 main spans
Daily traffic
7,456
2021 count
Owner
State
State Highway Agency

About this bridge

I-8 EB over Wellton Canal is a concrete continuous box beam or girders - single or spread carrying I-8 EB over Wellton Canal in Yuma County, Arizona. It was built in 1967, so it is 58 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 7,456 vehicles a day, roughly 26% of them trucks, projected to reach 7,466 by 2041. The structure is 109 ft (33.2 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
CrossesWellton Canal
Location29.3 MI E JCT US 95
RouteInterstate 8
CountyYuma County
StateArizona
Coordinates32.6645, -114.1303
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length109 ft (33.2 m)
Longest span51 ft (15.5 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,456 (2021)
Projected traffic7,466 by 2041
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-8 EB over Wellton Canal built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-8 EB over Wellton Canal 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 Wellton Canal carry?

About 7,456 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is I-8 EB over Wellton Canal?

The structure is 109 ft (33.2 m) long with a longest span of 51 ft (15.5 m) and a deck 41 ft wide.

Who owns I-8 EB over Wellton Canal?

It is owned by the State Highway Agency.