US Bridges

SR 89A over Mescal Gulch

Good

Yavapai County, Arizona · 3.3 MI NW JCT SR 260 · Structure no. 06185

Built
1964
61 years old, rebuilt 2008
Condition
Good
inspected August 2024
Type
Culvert
Concrete Continuous
Length
51 ft
4 main spans
Daily traffic
13,686
2022 count
Owner
State
State Highway Agency

About this bridge

SR 89A over Mescal Gulch is a concrete continuous culvert carrying SR 89A over Mescal Gulch in Yavapai County, Arizona. It was built in 1964 and reconstructed in 2008, so it is 61 years old, older 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 13,686 vehicles a day, roughly 8% of them trucks, projected to reach 13,696 by 2042. The structure is 51 ft (15.5 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesSR 89A
CrossesMescal Gulch
Location3.3 MI NW JCT SR 260
RouteState Highway 89
CountyYavapai County
StateArizona
Coordinates34.7442, -112.0418
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,686 (2022)
Projected traffic13,696 by 2042
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$2,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 89A over Mescal Gulch built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2008.

What condition is SR 89A over Mescal Gulch 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 August 2024.

How much traffic does SR 89A over Mescal Gulch carry?

About 13,686 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is SR 89A over Mescal Gulch?

The structure is 51 ft (15.5 m) long with a longest span of 12 ft (3.7 m).

Who owns SR 89A over Mescal Gulch?

It is owned by the State Highway Agency.