US Bridges

Davis Dam Road over Forebay Channel

Fair

Mohave County, Arizona · 3.5 M N from Bullhead Az · Structure no. 0305-3004

Built
1949
76 years old
Condition
Fair
inspected October 2024
Type
Girder and Floorbeam System
Steel
Length
543 ft
2 main spans
Daily traffic
80
2012 count
Owner
Federal
Bureau of Reclamation

About this bridge

Davis Dam Road over Forebay Channel is a steel girder and floorbeam system carrying Davis Dam Road over Forebay Channel in Mohave County, Arizona. It was built in 1949, so it is 76 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 80 vehicles a day, projected to reach 150 by 2034. The structure is 543 ft (165.5 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesDavis Dam Road
CrossesForebay Channel
Location3.5 M N from Bullhead Az
RouteState Highway 0
CountyMohave County
StateArizona
Coordinates35.19831, -114.56754
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating31.1 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length543 ft (165.5 m)
Longest span210 ft (64 m)
Deck width40 ft (12.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2012)
Projected traffic150 by 2034
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Reclamation
Maintained byBureau of Reclamation
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 Davis Dam Road over Forebay Channel built?

It was built in 1949, making it 76 years old in 2025.

What condition is Davis Dam Road over Forebay Channel 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 Davis Dam Road over Forebay Channel carry?

About 80 vehicles per day (2012 count).

How long is Davis Dam Road over Forebay Channel?

The structure is 543 ft (165.5 m) long with a longest span of 210 ft (64 m) and a deck 40 ft wide.

Who owns Davis Dam Road over Forebay Channel?

It is owned by the Bureau of Reclamation.