US Bridges

SR 87 over Ruby Wash

Fair

Navajo County, Arizona · 1.0 MI S JCT I-40 · Structure no. 06484

Built
1970
55 years old
Condition
Fair
inspected April 2023
Type
Culvert
Steel
Length
52 ft
4 main spans
Daily traffic
1,852
2021 count
Owner
State
State Highway Agency

About this bridge

SR 87 over Ruby Wash is a steel culvert carrying SR 87 over Ruby Wash in Navajo County, Arizona. It was built in 1970, so it is 55 years old, older 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 1,852 vehicles a day, roughly 16% of them trucks, projected to reach 1,862 by 2041. The structure is 52 ft (15.8 m) long. If it were closed, the detour would be 60.9 mi (98 km).

Location

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CarriesSR 87
CrossesRuby Wash
Location1.0 MI S JCT I-40
RouteState Highway 87
CountyNavajo County
StateArizona
Coordinates35.0076, -110.7037
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length52 ft (15.8 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 traffic1,852 (2021)
Projected traffic1,862 by 2041
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.9 mi (98 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 Ruby Wash built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR 87 over Ruby 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 April 2023.

How much traffic does SR 87 over Ruby Wash carry?

About 1,852 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is SR 87 over Ruby Wash?

The structure is 52 ft (15.8 m) long with a longest span of 10 ft (3 m).

Who owns SR 87 over Ruby Wash?

It is owned by the State Highway Agency.