US Bridges

31-001 over Defiance Draw

FairPosted for load

McKinley County, New Mexico · 2.78 MI N of JCT NM-118 · Structure no. 000000000008511

Built
1982
43 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
155 ft
5 main spans
Daily traffic
3,004
2023 count
Owner
County
County Highway Agency

About this bridge

31-001 over Defiance Draw is a steel continuous stringer/multi-beam or girder carrying 31-001 over Defiance Draw in McKinley County, New Mexico. It was built in 1982, so it is 43 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 6 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 load restriction.

It carries about 3,004 vehicles a day, roughly 11% of them trucks, projected to reach 4,085 by 2043. The structure is 155 ft (47.2 m) long and 13 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Carries31-001
CrossesDefiance Draw
Location2.78 MI N of JCT NM-118
RouteCounty Highway 31010
Coordinates35.52404, -108.86516
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
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 inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating26.8 US tons
Inventory rating19.6 US tons

Structure

MaterialSteel Continuous
DeckOpen grating
Main spans5
Design loadUnknown
Structure length155 ft (47.2 m)
Longest span35 ft (10.6 m)
Deck width13 ft (4 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,004 (2023)
Projected traffic4,085 by 2043
Trucks11%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$122,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 31-001 over Defiance Draw built?

It was built in 1982, making it 43 years old in 2025.

What condition is 31-001 over Defiance Draw 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 March 2024.

How much traffic does 31-001 over Defiance Draw carry?

About 3,004 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is 31-001 over Defiance Draw?

The structure is 155 ft (47.2 m) long with a longest span of 35 ft (10.6 m) and a deck 13 ft wide.

Who owns 31-001 over Defiance Draw?

It is owned by the County Highway Agency.