US Bridges

I-25 Nbl/Sbl over Ryan Hill Canyon

Fair

Socorro County, New Mexico · 1.5 MI N of JCT NM-178 · Structure no. 000000000006533

Built
1963
62 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
6,671
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl/Sbl over Ryan Hill Canyon is a concrete culvert carrying I-25 Nbl/Sbl over Ryan Hill Canyon in Socorro County, New Mexico. It was built in 1963, so it is 62 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 6,671 vehicles a day, roughly 45% of them trucks, projected to reach 9,072 by 2043. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-25 Nbl/Sbl
CrossesRyan Hill Canyon
Location1.5 MI N of JCT NM-178
RouteInterstate 25
CountySocorro County
StateNew Mexico
Coordinates33.75325, -106.99645
Functional classRural Principal Arterial - Interstate

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating108 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic6,671 (2023)
Projected traffic9,072 by 2043
Trucks45%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Nbl/Sbl over Ryan Hill Canyon built?

It was built in 1963, making it 62 years old in 2025.

What condition is I-25 Nbl/Sbl over Ryan Hill Canyon 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 July 2024.

How much traffic does I-25 Nbl/Sbl over Ryan Hill Canyon carry?

About 6,671 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl/Sbl over Ryan Hill Canyon?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m).

Who owns I-25 Nbl/Sbl over Ryan Hill Canyon?

It is owned by the State Highway Agency.