US Bridges

47-A04A over Canada Del Rocio

Fair

San Miguel County, New Mexico · .67 MI W JCT NM-94 @ 3.9 · Structure no. 000000000008372

Built
1980
45 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
210
2023 count
Owner
County
County Highway Agency

About this bridge

47-A04A over Canada Del Rocio is a prestressed concrete tee beam carrying 47-A04A over Canada Del Rocio in San Miguel 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 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 210 vehicles a day, projected to reach 285 by 2043. The structure is 31 ft (9.5 m) long and 24 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
Carries47-A04A
CrossesCanada Del Rocio
Location.67 MI W JCT NM-94 @ 3.9
RouteCounty Highway 47004
CountySan Miguel County
StateNew Mexico
Coordinates35.81172, -105.30551
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length31 ft (9.5 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.4 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2023)
Projected traffic285 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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$43,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 47-A04A over Canada Del Rocio built?

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

What condition is 47-A04A over Canada Del Rocio 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 2023.

How much traffic does 47-A04A over Canada Del Rocio carry?

About 210 vehicles per day (2023 count).

How long is 47-A04A over Canada Del Rocio?

The structure is 31 ft (9.5 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns 47-A04A over Canada Del Rocio?

It is owned by the County Highway Agency.