US Bridges

Fdr 378 over Rio Cebolla

Fair

Sandoval County, New Mexico · 2.7 MI S/O Calavera Cg · Structure no. 031003000001320

Built
1967
58 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
25 ft
1 main span
Daily traffic
50
2021 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 378 over Rio Cebolla is a wood or timber stringer/multi-beam or girder carrying Fdr 378 over Rio Cebolla in Sandoval County, New Mexico. It was built in 1967, so it is 58 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 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.

It carries about 50 vehicles a day, projected to reach 75 by 2040. The structure is 25 ft (7.5 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesFdr 378
CrossesRio Cebolla
Location2.7 MI S/O Calavera Cg
RouteFederal Lands Road 378
CountySandoval County
StateNew Mexico
Coordinates35.89168, -106.71924
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 20
Structure length25 ft (7.5 m)
Longest span23 ft (7 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic75 by 2040
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$160,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 378 over Rio Cebolla built?

It was built in 1967, making it 58 years old in 2025.

What condition is Fdr 378 over Rio Cebolla 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 June 2024.

How much traffic does Fdr 378 over Rio Cebolla carry?

About 50 vehicles per day (2021 count).

How long is Fdr 378 over Rio Cebolla?

The structure is 25 ft (7.5 m) long with a longest span of 23 ft (7 m) and a deck 15 ft wide.

Who owns Fdr 378 over Rio Cebolla?

It is owned by the U.S. Forest Service.