US Bridges

Salt Mine RD over Wash

Fair

Yavapai County, Arizona · 3.4 MI S of JCT SR 260 · Structure no. 10737

Built
1985
40 years old
Condition
Fair
inspected August 2023
Type
Culvert
Steel
Length
31 ft
4 main spans
Daily traffic
887
2021 count
Owner
County
County Highway Agency

About this bridge

Salt Mine RD over Wash is a steel culvert carrying Salt Mine RD over Wash in Yavapai County, Arizona. It was built in 1985, so it is 40 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 887 vehicles a day, roughly 1% of them trucks, projected to reach 897 by 2041. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesSalt Mine RD
CrossesWash
Location3.4 MI S of JCT SR 260
RouteCounty Highway 0
CountyYavapai County
StateArizona
Coordinates34.5275, -111.8533
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71 US tons
Inventory rating41 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length31 ft (9.4 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 traffic887 (2021)
Projected traffic897 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Salt Mine RD over Wash built?

It was built in 1985, making it 40 years old in 2025.

What condition is Salt Mine RD over 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 August 2023.

How much traffic does Salt Mine RD over Wash carry?

About 887 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Salt Mine RD over Wash?

The structure is 31 ft (9.4 m) long with a longest span of 6 ft (1.8 m).

Who owns Salt Mine RD over Wash?

It is owned by the County Highway Agency.