US Bridges

SR 68 WB over Twin Wash

Good

Mohave County, Arizona · 20.27 MI E JCT SR 95 · Structure no. 02276

Built
1992
33 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
606 ft
8 main spans
Daily traffic
5,574
2022 count
Owner
State
State Highway Agency

About this bridge

SR 68 WB over Twin Wash is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 68 WB over Twin Wash in Mohave County, Arizona. It was built in 1992, so it is 33 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 5,574 vehicles a day, roughly 6% of them trucks, projected to reach 5,584 by 2042. The structure is 606 ft (184.7 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 68 WB
CrossesTwin Wash
Location20.27 MI E JCT SR 95
RouteState Highway 68
StateArizona
Coordinates35.2236, -114.2455
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating41 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length606 ft (184.7 m)
Longest span75 ft (22.9 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,574 (2022)
Projected traffic5,584 by 2042
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 68 WB over Twin Wash built?

It was built in 1992, making it 33 years old in 2025.

What condition is SR 68 WB over Twin 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 April 2024.

How much traffic does SR 68 WB over Twin Wash carry?

About 5,574 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR 68 WB over Twin Wash?

The structure is 606 ft (184.7 m) long with a longest span of 75 ft (22.9 m) and a deck 47 ft wide.

Who owns SR 68 WB over Twin Wash?

It is owned by the State Highway Agency.