US Bridges

I-40 EB over Manila Wash

Fair

Navajo County, Arizona · 14.6 MI E JCT SR 87 · Structure no. 00851

Built
1969
56 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
112 ft
4 main spans
Daily traffic
11,789
2021 count
Owner
State
State Highway Agency

About this bridge

I-40 EB over Manila Wash is a concrete continuous slab carrying I-40 EB over Manila Wash 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 11,789 vehicles a day, roughly 45% of them trucks, projected to reach 11,799 by 2041. The structure is 112 ft (34.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-40 EB
CrossesManila Wash
Location14.6 MI E JCT SR 87
RouteInterstate 40
CountyNavajo County
StateArizona
Coordinates34.965, -110.4078
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length112 ft (34.1 m)
Longest span30 ft (9.1 m)
Deck width43 ft (13.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,789 (2021)
Projected traffic11,799 by 2041
Trucks45%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-40 EB over Manila Wash built?

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

What condition is I-40 EB over Manila 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 May 2023.

How much traffic does I-40 EB over Manila Wash carry?

About 11,789 vehicles per day (2021 count), of which roughly 45% are trucks.

How long is I-40 EB over Manila Wash?

The structure is 112 ft (34.1 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.

Who owns I-40 EB over Manila Wash?

It is owned by the State Highway Agency.