US Bridges

31-Z001 over Cebolla Creek

Fair

McKinley County, New Mexico · 0.4 MI N of NM-53/RAMAH · Structure no. 000000000008087

Built
1974
51 years old, rebuilt 1990
Condition
Fair
inspected May 2024
Type
Channel Beam
Concrete
Length
25 ft
1 main span
Daily traffic
337
2023 count
Owner
County
County Highway Agency

About this bridge

31-Z001 over Cebolla Creek is a concrete channel beam carrying 31-Z001 over Cebolla Creek in McKinley County, New Mexico. It was built in 1974 and reconstructed in 1990, so it is 51 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.

It carries about 337 vehicles a day, projected to reach 458 by 2043. The structure is 25 ft (7.6 m) long and 21 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries31-Z001
CrossesCebolla Creek
Location0.4 MI N of NM-53/RAMAH
RouteCounty Highway 31001
CountyMcKinley County
StateNew Mexico
Coordinates35.13859, -108.49611
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating20.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span21 ft (6.3 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic337 (2023)
Projected traffic458 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-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$31,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 31-Z001 over Cebolla Creek built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 1990.

What condition is 31-Z001 over Cebolla Creek 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 2024.

How much traffic does 31-Z001 over Cebolla Creek carry?

About 337 vehicles per day (2023 count).

How long is 31-Z001 over Cebolla Creek?

The structure is 25 ft (7.6 m) long with a longest span of 21 ft (6.3 m) and a deck 21 ft wide.

Who owns 31-Z001 over Cebolla Creek?

It is owned by the County Highway Agency.