US Bridges

US-70/380 over Unnamed Waterway

Fair

Lincoln County, New Mexico · 10.2 M E JCT US-380/HONDO · Structure no. 000000000002171

Built
1938
87 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
61 ft
9 main spans
Daily traffic
3,714
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 1938, so it is 87 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 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 3,714 vehicles a day, roughly 17% of them trucks, projected to reach 5,051 by 2043. The structure is 61 ft (18.6 m) long.

Location

Open in Google Maps
CarriesUS-70/380
CrossesUnnamed Waterway
Location10.2 M E JCT US-380/HONDO
RouteU.S. Route 70
CountyLincoln County
StateNew Mexico
Coordinates33.33901, -105.11908
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans9
Design loadH 15
Structure length61 ft (18.6 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 traffic3,714 (2023)
Projected traffic5,051 by 2043
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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$238,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 1938, making it 87 years old in 2025.

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 December 2024.

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

About 3,714 vehicles per day (2023 count), of which roughly 17% are trucks.

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

The structure is 61 ft (18.6 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.