US Bridges

I-40 EB over Blake Ranch Road

Fair

Mohave County, Arizona · 5.6 MI W JCT US 93 · Structure no. 00911

Built
1965
60 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
11,652
2021 count
Owner
State
State Highway Agency

About this bridge

I-40 EB over Blake Ranch Road is a concrete continuous slab carrying I-40 EB over Blake Ranch Road in Mohave County, Arizona. It was built in 1965, so it is 60 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 11,652 vehicles a day, roughly 32% of them trucks, projected to reach 11,662 by 2041. The structure is 90 ft (27.4 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesI-40 EB
CrossesBlake Ranch Road
Location5.6 MI W JCT US 93
RouteInterstate 40
CountyMohave County
StateArizona
Coordinates35.1769, -113.7909
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span33 ft (10.1 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,652 (2021)
Projected traffic11,662 by 2041
Trucks32%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-40 EB over Blake Ranch Road built?

It was built in 1965, making it 60 years old in 2025.

What condition is I-40 EB over Blake Ranch Road 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 December 2024.

How much traffic does I-40 EB over Blake Ranch Road carry?

About 11,652 vehicles per day (2021 count), of which roughly 32% are trucks.

How long is I-40 EB over Blake Ranch Road?

The structure is 90 ft (27.4 m) long with a longest span of 33 ft (10.1 m) and a deck 40 ft wide.

Who owns I-40 EB over Blake Ranch Road?

It is owned by the State Highway Agency.