US Bridges

Perkins Valley RD over I-40

Fair

Navajo County, Arizona · 9.5 MI W JCT SR 77 · Structure no. 01776

Built
1977
48 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
253 ft
2 main spans
Daily traffic
2,705
2022 count
Owner
State
State Highway Agency

About this bridge

Perkins Valley RD over I-40 is a steel continuous stringer/multi-beam or girder carrying Perkins Valley RD over I-40 in Navajo County, Arizona. It was built in 1977, so it is 48 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 5 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 2,705 vehicles a day, roughly 5% of them trucks, projected to reach 2,715 by 2042. The structure is 253 ft (77.1 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesPerkins Valley RD
CrossesI-40
Location9.5 MI W JCT SR 77
RouteCounty Highway 0
CountyNavajo County
StateArizona
Coordinates34.907, -110.2125
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length253 ft (77.1 m)
Longest span124 ft (37.8 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,705 (2022)
Projected traffic2,715 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$3,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Perkins Valley RD over I-40 built?

It was built in 1977, making it 48 years old in 2025.

What condition is Perkins Valley RD over I-40 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 July 2024.

How much traffic does Perkins Valley RD over I-40 carry?

About 2,705 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Perkins Valley RD over I-40?

The structure is 253 ft (77.1 m) long with a longest span of 124 ft (37.8 m) and a deck 29 ft wide.

Who owns Perkins Valley RD over I-40?

It is owned by the State Highway Agency.