US Bridges

O&m Service Road over Powerplant Inlet Channel

Good

Imperial County, California · 6 MI North of Yuma Az · Structure no. 0304-0076

Built
1986
39 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
123 ft
2 main spans
Daily traffic
50
2013 count
Owner
Federal
Bureau of Reclamation

About this bridge

O&m Service Road over Powerplant Inlet Channel is a prestressed concrete stringer/multi-beam or girder carrying O&m Service Road over Powerplant Inlet Channel in Imperial County, California. It was built in 1986, so it is 39 years old, younger than the California average of 54.8 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 50 vehicles a day, projected to reach 150 by 2032. The structure is 123 ft (37.5 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesO&m Service Road
CrossesPowerplant Inlet Channel
Location6 MI North of Yuma Az
Coordinates32.77944, -114.635
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length123 ft (37.5 m)
Longest span60 ft (18.3 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2013)
Projected traffic150 by 2032
Trucks—
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

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 O&m Service Road over Powerplant Inlet Channel built?

It was built in 1986, making it 39 years old in 2025.

What condition is O&m Service Road over Powerplant Inlet Channel 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 May 2023.

How much traffic does O&m Service Road over Powerplant Inlet Channel carry?

About 50 vehicles per day (2013 count).

How long is O&m Service Road over Powerplant Inlet Channel?

The structure is 123 ft (37.5 m) long with a longest span of 60 ft (18.3 m) and a deck 26 ft wide.

Who owns O&m Service Road over Powerplant Inlet Channel?

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