US Bridges

Ggmc Service Road over Auto. Spillway Intake

Fair

Yuma County, Arizona · Gila Gravity Main Canal S · Structure no. 0304-0049

Built
1935
90 years old, rebuilt 1970
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
20
2016 count
Owner
Federal
Bureau of Reclamation

About this bridge

Ggmc Service Road over Auto. Spillway Intake is a prestressed concrete box beam or girders - multiple carrying Ggmc Service Road over Auto. Spillway Intake in Yuma County, Arizona. It was built in 1935 and reconstructed in 1970, so it is 90 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 20 vehicles a day, projected to reach 40 by 2035. The structure is 49 ft (14.9 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesGgmc Service Road
CrossesAuto. Spillway Intake
LocationGila Gravity Main Canal S
CountyYuma County
StateArizona
Coordinates32.74206, -114.44606
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length49 ft (14.9 m)
Longest span47 ft (14.3 m)
Deck width22 ft (6.6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2016)
Projected traffic40 by 2035
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Reclamation
Maintained byOther Local 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 Ggmc Service Road over Auto. Spillway Intake built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1970.

What condition is Ggmc Service Road over Auto. Spillway Intake 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 2024.

How much traffic does Ggmc Service Road over Auto. Spillway Intake carry?

About 20 vehicles per day (2016 count).

How long is Ggmc Service Road over Auto. Spillway Intake?

The structure is 49 ft (14.9 m) long with a longest span of 47 ft (14.3 m) and a deck 22 ft wide.

Who owns Ggmc Service Road over Auto. Spillway Intake?

It is owned by the Bureau of Reclamation and maintained by the Other Local Agency.