US Bridges

Cottonwood Wash RD over Cottonwood Wash

Fair

Graham County, Arizona · 2.9 MI SW JCT 800 W · Structure no. 10471

Built
1999
26 years old
Condition
Fair
inspected September 2023
Type
Culvert
Steel
Length
40 ft
6 main spans
Daily traffic
600
2022 count
Owner
County
County Highway Agency

About this bridge

Cottonwood Wash RD over Cottonwood Wash is a steel culvert carrying Cottonwood Wash RD over Cottonwood Wash in Graham County, Arizona. It was built in 1999, so it is 26 years old, younger 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 600 vehicles a day, roughly 5% of them trucks, projected to reach 610 by 2042. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCottonwood Wash RD
CrossesCottonwood Wash
Location2.9 MI SW JCT 800 W
RouteCounty Highway 0
CountyGraham County
StateArizona
Coordinates32.85117, -109.8821
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating41 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans6
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2022)
Projected traffic610 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cottonwood Wash RD over Cottonwood Wash built?

It was built in 1999, making it 26 years old in 2025.

What condition is Cottonwood Wash RD over Cottonwood 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 September 2023.

How much traffic does Cottonwood Wash RD over Cottonwood Wash carry?

About 600 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Cottonwood Wash RD over Cottonwood Wash?

The structure is 40 ft (12.2 m) long with a longest span of 6 ft (1.8 m).

Who owns Cottonwood Wash RD over Cottonwood Wash?

It is owned by the County Highway Agency.