US Bridges

47-B43B over Pecos River

Fair

San Miguel County, New Mexico · 1.8 MI N of I-25 Frtg RD · Structure no. 000000000008213

Built
1974
51 years old
Condition
Fair
inspected November 2023
Type
Channel Beam
Concrete
Length
77 ft
3 main spans
Daily traffic
210
2023 count
Owner
County
County Highway Agency

About this bridge

47-B43B over Pecos River is a concrete channel beam carrying 47-B43B over Pecos River in San Miguel County, New Mexico. It was built in 1974, so it is 51 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 210 vehicles a day, projected to reach 285 by 2043. The structure is 77 ft (23.5 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
Carries47-B43B
CrossesPecos River
Location1.8 MI N of I-25 Frtg RD
RouteCounty Highway 47043
CountySan Miguel County
StateNew Mexico
Coordinates35.44656, -105.58151
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69.3 US tons
Inventory rating41.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length77 ft (23.5 m)
Longest span24 ft (7.3 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.9 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 closed98.8 mi (159 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$139,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 47-B43B over Pecos River built?

It was built in 1974, making it 51 years old in 2025.

What condition is 47-B43B over Pecos River 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 November 2023.

How much traffic does 47-B43B over Pecos River carry?

About 210 vehicles per day (2023 count).

How long is 47-B43B over Pecos River?

The structure is 77 ft (23.5 m) long with a longest span of 24 ft (7.3 m) and a deck 30 ft wide.

Who owns 47-B43B over Pecos River?

It is owned by the County Highway Agency.