US Bridges

SR 87 NB over Boone Wash

Good

Gila County, Arizona · 3.4 MI N JCT SR 188 · Structure no. 06948

Built
1991
34 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
15,223
2022 count
Owner
State
State Highway Agency

About this bridge

SR 87 NB over Boone Wash is a concrete continuous culvert carrying SR 87 NB over Boone Wash in Gila County, Arizona. It was built in 1991, so it is 34 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 15,223 vehicles a day, roughly 10% of them trucks, projected to reach 15,233 by 2042. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 87 NB
CrossesBoone Wash
Location3.4 MI N JCT SR 188
RouteState Highway 87
CountyGila County
StateArizona
Coordinates34.0834, -111.3552
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 adequacy8: Equal to present desirable 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 spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,223 (2022)
Projected traffic15,233 by 2042
Trucks10%
Lanes on structure3
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 87 NB over Boone Wash built?

It was built in 1991, making it 34 years old in 2025.

What condition is SR 87 NB over Boone 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 August 2024.

How much traffic does SR 87 NB over Boone Wash carry?

About 15,223 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SR 87 NB over Boone Wash?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns SR 87 NB over Boone Wash?

It is owned by the State Highway Agency.