US Bridges

I-8 WB over SR B8 & Canal

Fair

Yuma County, Arizona · 7.2 MI E JCT US 95 · Structure no. 01281

Built
1968
57 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
313 ft
4 main spans
Daily traffic
19,861
2024 count
Owner
State
State Highway Agency

About this bridge

I-8 WB over SR B8 & Canal is a steel continuous stringer/multi-beam or girder carrying I-8 WB over SR B8 & Canal in Yuma County, Arizona. It was built in 1968, so it is 57 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 5 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 19,861 vehicles a day, roughly 26% of them trucks, projected to reach 19,871 by 2042. The structure is 313 ft (95.4 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-8 WB
CrossesSR B8 & Canal
Location7.2 MI E JCT US 95
RouteInterstate 8
CountyYuma County
StateArizona
Coordinates32.6742, -114.4921
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length313 ft (95.4 m)
Longest span101 ft (30.8 m)
Deck width36 ft (10.9 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deck30 ft (9.1 m)

Traffic and service

Average daily traffic19,861 (2024)
Projected traffic19,871 by 2042
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and waterway
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 SR B8 & Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-8 WB over SR B8 & 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 October 2024.

How much traffic does I-8 WB over SR B8 & Canal carry?

About 19,861 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is I-8 WB over SR B8 & Canal?

The structure is 313 ft (95.4 m) long with a longest span of 101 ft (30.8 m) and a deck 36 ft wide.

Who owns I-8 WB over SR B8 & Canal?

It is owned by the State Highway Agency.