US Bridges

Hermosa Drive over I-40

Fair

Navajo County, Arizona · 1.73 MI E JCT SR 77 · Structure no. 01368

Built
1969
56 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
322 ft
4 main spans
Daily traffic
539
2022 count
Owner
State
State Highway Agency

About this bridge

Hermosa Drive over I-40 is a steel continuous stringer/multi-beam or girder carrying Hermosa Drive over I-40 in Navajo County, Arizona. It was built in 1969, so it is 56 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 539 vehicles a day, roughly 5% of them trucks, projected to reach 549 by 2042. The structure is 322 ft (98.1 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHermosa Drive
CrossesI-40
Location1.73 MI E JCT SR 77
RouteCity Street 0
CountyNavajo County
StateArizona
Coordinates34.9237, -110.1379
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length322 ft (98.1 m)
Longest span99 ft (30.2 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic539 (2022)
Projected traffic549 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hermosa Drive over I-40 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Hermosa 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 July 2024.

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

About 539 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Hermosa Drive over I-40?

The structure is 322 ft (98.1 m) long with a longest span of 99 ft (30.2 m) and a deck 31 ft wide.

Who owns Hermosa Drive over I-40?

It is owned by the State Highway Agency.