US Bridges

US-70/380 over Unnamed Waterway

Fair

Lincoln County, New Mexico · 2.9 M E JCT US-380/HONDO · Structure no. 000000000002047

Built
1937
88 years old, rebuilt 1987
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
27 ft
4 main spans
Daily traffic
3,889
2023 count
Owner
State
State Highway Agency

About this bridge

US-70/380 over Unnamed Waterway is a concrete culvert carrying US-70/380 over Unnamed Waterway in Lincoln County, New Mexico. It was built in 1937 and reconstructed in 1987, so it is 88 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 3,889 vehicles a day, roughly 17% of them trucks, projected to reach 5,289 by 2043. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesUS-70/380
CrossesUnnamed Waterway
Location2.9 M E JCT US-380/HONDO
RouteU.S. Route 70
CountyLincoln County
StateNew Mexico
Coordinates33.37019, -105.23327
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length27 ft (8.2 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,889 (2023)
Projected traffic5,289 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$107,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-70/380 over Unnamed Waterway built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1987.

What condition is US-70/380 over Unnamed Waterway 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 September 2023.

How much traffic does US-70/380 over Unnamed Waterway carry?

About 3,889 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is US-70/380 over Unnamed Waterway?

The structure is 27 ft (8.2 m) long with a longest span of 6 ft (1.8 m).

Who owns US-70/380 over Unnamed Waterway?

It is owned by the State Highway Agency.