US Bridges

B-28 over Pecos River

Good

San Miguel County, New Mexico · 6.3 MI E of JCT NM-3 · Structure no. 000000000008794

Built
1992
33 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
168 ft
3 main spans
Daily traffic
210
2023 count
Owner
County
County Highway Agency

About this bridge

B-28 over Pecos River is a prestressed concrete continuous stringer/multi-beam or girder carrying B-28 over Pecos River in San Miguel County, New Mexico. It was built in 1992, so it is 33 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 210 vehicles a day, projected to reach 285 by 2043. The structure is 168 ft (51.2 m) long and 25 ft wide. If it were closed, the detour would be 51 mi (82 km).

CarriesB-28
CrossesPecos River
Location6.3 MI E of JCT NM-3
RouteCounty Highway 47027
Coordinates35.27677, -105.31218
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length168 ft (51.2 m)
Longest span55 ft (16.8 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.5 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 closed51 mi (82 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was B-28 over Pecos River built?

It was built in 1992, making it 33 years old in 2025.

What condition is B-28 over Pecos River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does B-28 over Pecos River carry?

About 210 vehicles per day (2023 count).

How long is B-28 over Pecos River?

The structure is 168 ft (51.2 m) long with a longest span of 55 ft (16.8 m) and a deck 25 ft wide.

Who owns B-28 over Pecos River?

It is owned by the County Highway Agency.