US Bridges

31-0026 over Salt Water Wash

FairPosted for load

McKinley County, New Mexico · 4.9 Mi. South Int. I-40 · Structure no. 000000000009328

Built
2003
22 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
111 ft
7 main spans
Daily traffic
337
2023 count
Owner
County
County Highway Agency

About this bridge

31-0026 over Salt Water Wash is a steel continuous stringer/multi-beam or girder carrying 31-0026 over Salt Water Wash in McKinley County, New Mexico. It was built in 2003, so it is 22 years old, younger than the New Mexico average of 51.5 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. Its operating status is: posted for other load-capacity restriction.

It carries about 337 vehicles a day, projected to reach 458 by 2043. The structure is 111 ft (33.7 m) long and 14 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries31-0026
CrossesSalt Water Wash
Location4.9 Mi. South Int. I-40
RouteCounty Highway 31001
Coordinates35.4389, -108.8289
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.9 US tons

Structure

MaterialSteel Continuous
DeckOpen grating
Main spans7
Design loadHS 20
Structure length111 ft (33.7 m)
Longest span20 ft (6.2 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic337 (2023)
Projected traffic458 by 2043
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$500,000 (2080 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 31-0026 over Salt Water Wash built?

It was built in 2003, making it 22 years old in 2025.

What condition is 31-0026 over Salt Water 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 November 2024.

How much traffic does 31-0026 over Salt Water Wash carry?

About 337 vehicles per day (2023 count).

How long is 31-0026 over Salt Water Wash?

The structure is 111 ft (33.7 m) long with a longest span of 20 ft (6.2 m) and a deck 14 ft wide.

Who owns 31-0026 over Salt Water Wash?

It is owned by the County Highway Agency.