US Bridges

SR 87 over Limestone Wash

Good

Coconino County, Arizona · 18.3 MI S JCT I-40 · Structure no. 20048

Built
2014
11 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
117 ft
1 main span
Daily traffic
594
2021 count
Owner
State
State Highway Agency

About this bridge

SR 87 over Limestone Wash is a prestressed concrete stringer/multi-beam or girder carrying SR 87 over Limestone Wash in Coconino County, Arizona. It was built in 2014, so it is 11 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 594 vehicles a day, roughly 11% of them trucks, projected to reach 604 by 2041. The structure is 117 ft (35.7 m) long and 49 ft wide. If it were closed, the detour would be 80.2 mi (129 km).

Location

Open in Google Maps
CarriesSR 87
CrossesLimestone Wash
Location18.3 MI S JCT I-40
RouteState Highway 87
CountyCoconino County
StateArizona
Coordinates34.84913, -110.92926
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length117 ft (35.7 m)
Longest span112 ft (34.1 m)
Deck width49 ft (14.9 m)
Roadway width46 ft (14 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 closed80.2 mi (129 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 2014, making it 11 years old in 2025.

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 117 ft (35.7 m) long with a longest span of 112 ft (34.1 m) and a deck 49 ft wide.

Who owns SR 87 over Limestone Wash?

It is owned by the State Highway Agency.