US Bridges

Hipkoe Drive over I-40

Fair

Navajo County, Arizona · 1.3 MI W JCT SR 87 · Structure no. 01650

Built
1974
51 years old, rebuilt 1993
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
219 ft
2 main spans
Daily traffic
5,050
2022 count
Owner
State
State Highway Agency

About this bridge

Hipkoe Drive over I-40 is a concrete continuous box beam or girders - single or spread carrying Hipkoe Drive over I-40 in Navajo County, Arizona. It was built in 1974 and reconstructed in 1993, so it is 51 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 5,050 vehicles a day, roughly 10% of them trucks, projected to reach 5,060 by 2042. The structure is 219 ft (66.8 m) long and 67 ft wide.

Location

Open in Google Maps
CarriesHipkoe Drive
CrossesI-40
Location1.3 MI W JCT SR 87
RouteCity Street 0
CountyNavajo County
StateArizona
Coordinates35.0375, -110.7242
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length219 ft (66.8 m)
Longest span108 ft (32.9 m)
Deck width67 ft (20.4 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,050 (2022)
Projected traffic5,060 by 2042
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hipkoe Drive over I-40 built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 1993.

What condition is Hipkoe Drive 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 May 2023.

How much traffic does Hipkoe Drive over I-40 carry?

About 5,050 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Hipkoe Drive over I-40?

The structure is 219 ft (66.8 m) long with a longest span of 108 ft (32.9 m) and a deck 67 ft wide.

Who owns Hipkoe Drive over I-40?

It is owned by the State Highway Agency.