US Bridges

I-40 Wbl over Salt Draw

Good

Torrance County, New Mexico · 2.3 M E JCT I-40/NM-41 · Structure no. 000000000007146

Built
1970
55 years old, rebuilt 1993
Condition
Good
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
318 ft
5 main spans
Daily traffic
28,433
2023 count
Owner
State
State Highway Agency

About this bridge

I-40 Wbl over Salt Draw is a prestressed concrete stringer/multi-beam or girder carrying I-40 Wbl over Salt Draw in Torrance County, New Mexico. It was built in 1970 and reconstructed in 1993, so it is 55 years old, older than the New Mexico average of 51.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 28,433 vehicles a day, roughly 45% of them trucks, projected to reach 38,668 by 2043. The structure is 318 ft (96.9 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-40 Wbl
CrossesSalt Draw
Location2.3 M E JCT I-40/NM-41
RouteInterstate 40
Coordinates35.00483, -106.00342
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating32.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length318 ft (96.9 m)
Longest span62 ft (18.9 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,433 (2023)
Projected traffic38,668 by 2043
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-40 Wbl over Salt Draw built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1993.

What condition is I-40 Wbl over Salt Draw in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2022.

How much traffic does I-40 Wbl over Salt Draw carry?

About 28,433 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-40 Wbl over Salt Draw?

The structure is 318 ft (96.9 m) long with a longest span of 62 ft (18.9 m) and a deck 45 ft wide.

Who owns I-40 Wbl over Salt Draw?

It is owned by the State Highway Agency.