US Bridges

Fdr 87 over Rio San Antonio

Good

Rio Arriba County, New Mexico · 0.2 MI S/O FSR 78 Int · Structure no. 030200000031333

Built
2015
10 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
90
2022 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 87 over Rio San Antonio is a prestressed concrete box beam or girders - multiple carrying Fdr 87 over Rio San Antonio in Rio Arriba County, New Mexico. It was built in 2015, so it is 10 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 90 vehicles a day, projected to reach 125 by 2040. The structure is 63 ft (19.3 m) long and 16 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

CarriesFdr 87
CrossesRio San Antonio
Location0.2 MI S/O FSR 78 Int
RouteFederal Lands Road 87
Coordinates36.85768, -106.12956
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length63 ft (19.3 m)
Longest span62 ft (18.9 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2022)
Projected traffic125 by 2040
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 87 over Rio San Antonio built?

It was built in 2015, making it 10 years old in 2025.

What condition is Fdr 87 over Rio San Antonio 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 July 2024.

How much traffic does Fdr 87 over Rio San Antonio carry?

About 90 vehicles per day (2022 count).

How long is Fdr 87 over Rio San Antonio?

The structure is 63 ft (19.3 m) long with a longest span of 62 ft (18.9 m) and a deck 16 ft wide.

Who owns Fdr 87 over Rio San Antonio?

It is owned by the U.S. Forest Service.