US Bridges

31-Z001 over Defiance Draw

Good

McKinley County, New Mexico · 1.5 MI North Nm 118 · Structure no. 000000000009519

Built
2011
14 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
83 ft
5 main spans
Daily traffic
988
2023 count
Owner
County
County Highway Agency

About this bridge

31-Z001 over Defiance Draw is a concrete culvert carrying 31-Z001 over Defiance Draw in McKinley County, New Mexico. It was built in 2011, so it is 14 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 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 988 vehicles a day, roughly 11% of them trucks, projected to reach 1,343 by 2043. The structure is 83 ft (25.3 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Carries31-Z001
CrossesDefiance Draw
Location1.5 MI North Nm 118
RouteCounty Highway 31001
Coordinates35.49581, -108.91226
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHL 93
Structure length83 ft (25.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic988 (2023)
Projected traffic1,343 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-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$500,000 (2050 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 31-Z001 over Defiance Draw built?

It was built in 2011, making it 14 years old in 2025.

What condition is 31-Z001 over Defiance 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 February 2025.

How much traffic does 31-Z001 over Defiance Draw carry?

About 988 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is 31-Z001 over Defiance Draw?

The structure is 83 ft (25.3 m) long with a longest span of 12 ft (3.7 m).

Who owns 31-Z001 over Defiance Draw?

It is owned by the County Highway Agency.