US Bridges

US-70 over Unnamed Waterway

Good

Roosevelt County, New Mexico · 4.7 M SW JCT NM206/PORTAL · Structure no. 000000000002088

Built
1977
48 years old, rebuilt 2000
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
3,153
2023 count
Owner
State
State Highway Agency

About this bridge

US-70 over Unnamed Waterway is a concrete culvert carrying US-70 over Unnamed Waterway in Roosevelt County, New Mexico. It was built in 1977 and reconstructed in 2000, so it is 48 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 3,153 vehicles a day, roughly 10% of them trucks, projected to reach 4,288 by 2043. The structure is 22 ft (6.7 m) long.

Location

Open in Google Maps
CarriesUS-70
CrossesUnnamed Waterway
Location4.7 M SW JCT NM206/PORTAL
RouteU.S. Route 70
CountyRoosevelt County
StateNew Mexico
Coordinates34.1406, -103.40225
Functional classRural Principal Arterial - Other

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 inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,153 (2023)
Projected traffic4,288 by 2043
Trucks10%
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$116,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-70 over Unnamed Waterway built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 2000.

What condition is US-70 over Unnamed Waterway 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 December 2023.

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

About 3,153 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US-70 over Unnamed Waterway?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns US-70 over Unnamed Waterway?

It is owned by the State Highway Agency.