US Bridges

Old SR 80 over Red Top Wash

Good

Yuma County, Arizona · 1.7 MI E JCT I-8 · Structure no. 10549

Built
2010
15 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
207 ft
2 main spans
Daily traffic
2,302
2022 count
Owner
County
County Highway Agency

About this bridge

Old SR 80 over Red Top Wash is a prestressed concrete continuous stringer/multi-beam or girder carrying Old SR 80 over Red Top Wash in Yuma County, Arizona. It was built in 2010, so it is 15 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,302 vehicles a day, roughly 10% of them trucks, projected to reach 2,312 by 2042. The structure is 207 ft (63.1 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesOld SR 80
CrossesRed Top Wash
Location1.7 MI E JCT I-8
RouteCounty Highway 80
CountyYuma County
StateArizona
Coordinates32.67271, -114.27529
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating96 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length207 ft (63.1 m)
Longest span100 ft (30.5 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,302 (2022)
Projected traffic2,312 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Old SR 80 over Red Top Wash built?

It was built in 2010, making it 15 years old in 2025.

What condition is Old SR 80 over Red Top Wash 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 January 2025.

How much traffic does Old SR 80 over Red Top Wash carry?

About 2,302 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Old SR 80 over Red Top Wash?

The structure is 207 ft (63.1 m) long with a longest span of 100 ft (30.5 m) and a deck 43 ft wide.

Who owns Old SR 80 over Red Top Wash?

It is owned by the County Highway Agency.