US Bridges

Old Trails Road over Old Trails Wash

FairPosted for load

Mohave County, Arizona · 0.2 MI S JCT B40 · Structure no. 08594

Built
1917
108 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
450
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Trails Road over Old Trails Wash is a concrete continuous slab carrying Old Trails Road over Old Trails Wash in Mohave County, Arizona. It was built in 1917, so it is 108 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 450 vehicles a day, projected to reach 460 by 2041. The structure is 30 ft (9.1 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesOld Trails Road
CrossesOld Trails Wash
Location0.2 MI S JCT B40
RouteCity Street 0
CountyMohave County
StateArizona
Coordinates35.18478, -114.05382
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length30 ft (9.1 m)
Longest span13 ft (4 m)
Deck width23 ft (7 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2021)
Projected traffic460 by 2041
Trucks0%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Trails Road over Old Trails Wash built?

It was built in 1917, making it 108 years old in 2025.

What condition is Old Trails Road over Old Trails Wash 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 April 2023.

How much traffic does Old Trails Road over Old Trails Wash carry?

About 450 vehicles per day (2021 count).

How long is Old Trails Road over Old Trails Wash?

The structure is 30 ft (9.1 m) long with a longest span of 13 ft (4 m) and a deck 23 ft wide.

Who owns Old Trails Road over Old Trails Wash?

It is owned by the City or Municipal Highway Agency.