US Bridges

NM-75 over Rio Penasco

Fair

Rio Arriba County, New Mexico · Nm 75 Mm 3.05 · Structure no. 000000000006417

Built
1962
63 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
168 ft
13 main spans
Daily traffic
1,188
2023 count
Owner
State
State Highway Agency

About this bridge

NM-75 over Rio Penasco is a concrete culvert carrying NM-75 over Rio Penasco in Rio Arriba County, New Mexico. It was built in 1962, so it is 63 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 1,188 vehicles a day, roughly 11% of them trucks, projected to reach 1,615 by 2043. The structure is 168 ft (51.3 m) long.

CarriesNM-75
CrossesRio Penasco
LocationNm 75 Mm 3.05
RouteState Highway 75
Coordinates36.19557, -105.86686
Functional classRural Major Collector

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans13
Design loadHS 20
Structure length168 ft (51.3 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 traffic1,188 (2023)
Projected traffic1,615 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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$479,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-75 over Rio Penasco built?

It was built in 1962, making it 63 years old in 2025.

What condition is NM-75 over Rio Penasco 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 March 2024.

How much traffic does NM-75 over Rio Penasco carry?

About 1,188 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-75 over Rio Penasco?

The structure is 168 ft (51.3 m) long with a longest span of 10 ft (3 m).

Who owns NM-75 over Rio Penasco?

It is owned by the State Highway Agency.