US Bridges

39-0070 over Rio De Penasco

Fair

Rio Arriba County, New Mexico · 2.40 MI S NM-580 & Nm · Structure no. 000000000008369

Built
1980
45 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
166
2023 count
Owner
County
County Highway Agency

About this bridge

39-0070 over Rio De Penasco is a prestressed concrete stringer/multi-beam or girder carrying 39-0070 over Rio De Penasco in Rio Arriba County, New Mexico. It was built in 1980, so it is 45 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 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 166 vehicles a day, projected to reach 225 by 2043. The structure is 35 ft (10.7 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries39-0070
CrossesRio De Penasco
Location2.40 MI S NM-580 & Nm
RouteCounty Highway 39070
Coordinates36.18088, -105.8341
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width19 ft (5.7 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic166 (2023)
Projected traffic225 by 2043
Trucks—
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$37,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 39-0070 over Rio De Penasco built?

It was built in 1980, making it 45 years old in 2025.

What condition is 39-0070 over Rio De 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 July 2023.

How much traffic does 39-0070 over Rio De Penasco carry?

About 166 vehicles per day (2023 count).

How long is 39-0070 over Rio De Penasco?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 19 ft wide.

Who owns 39-0070 over Rio De Penasco?

It is owned by the County Highway Agency.