US Bridges

SR 87 over Limestone Wash

Good

Coconino County, Arizona · 20.7 MI S JCT I-40 · Structure no. 04670

Built
1959
66 years old, rebuilt 1967
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
594
2021 count
Owner
State
State Highway Agency

About this bridge

SR 87 over Limestone Wash is a concrete continuous culvert carrying SR 87 over Limestone Wash in Coconino County, Arizona. It was built in 1959 and reconstructed in 1967, so it is 66 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 594 vehicles a day, roughly 11% of them trucks, projected to reach 604 by 2041. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSR 87
CrossesLimestone Wash
Location20.7 MI S JCT I-40
RouteState Highway 87
CountyCoconino County
StateArizona
Coordinates34.82401, -110.95859
Functional classRural 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 inspectionApril 2023
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 rating71 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 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 traffic594 (2021)
Projected traffic604 by 2041
Trucks11%
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

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 over Limestone Wash built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1967.

What condition is SR 87 over Limestone 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 April 2023.

How much traffic does SR 87 over Limestone Wash carry?

About 594 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is SR 87 over Limestone Wash?

The structure is 29 ft (8.8 m) long with a longest span of 10 ft (3 m).

Who owns SR 87 over Limestone Wash?

It is owned by the State Highway Agency.