US Bridges

4th Ave Ext over A Canal

Good

Yuma County, Arizona · 0.5 MI S JCT Co. 14th ST · Structure no. 07627

Built
1991
34 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
420
2024 count
Owner
County
County Highway Agency

About this bridge

4th Ave Ext over A Canal is a prestressed concrete box beam or girders - multiple carrying 4th Ave Ext over A Canal in Yuma County, Arizona. It was built in 1991, so it is 34 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 420 vehicles a day, roughly 1% of them trucks, projected to reach 430 by 2042. The structure is 37 ft (11.4 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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Carries4th Ave Ext
CrossesA Canal
Location0.5 MI S JCT Co. 14th ST
RouteCounty Highway 0
CountyYuma County
StateArizona
Coordinates32.61861, -114.624
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating43 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length37 ft (11.4 m)
Longest span35 ft (10.7 m)
Deck width48 ft (14.6 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deck25 ft (7.6 m)

Traffic and service

Average daily traffic420 (2024)
Projected traffic430 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 4th Ave Ext over A Canal built?

It was built in 1991, making it 34 years old in 2025.

What condition is 4th Ave Ext over A Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does 4th Ave Ext over A Canal carry?

About 420 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is 4th Ave Ext over A Canal?

The structure is 37 ft (11.4 m) long with a longest span of 35 ft (10.7 m) and a deck 48 ft wide.

Who owns 4th Ave Ext over A Canal?

It is owned by the County Highway Agency.