US Bridges

N5031 over Hogback Irrigation Canal

Good

San Juan County, New Mexico · 0.5 Miles North of US 64 · Structure no. 00000000000N267

Built
2012
13 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
1,155
2022 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

N5031 over Hogback Irrigation Canal is a prestressed concrete box beam or girders - multiple carrying N5031 over Hogback Irrigation Canal in San Juan County, New Mexico. It was built in 2012, so it is 13 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,155 vehicles a day, roughly 15% of them trucks, projected to reach 708 by 2040. The structure is 44 ft (13.5 m) long and 36 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesN5031
CrossesHogback Irrigation Canal
Location0.5 Miles North of US 64
RouteFederal Lands Road N5031
Coordinates36.77361, -108.60764
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length44 ft (13.5 m)
Longest span37 ft (11.3 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,155 (2022)
Projected traffic708 by 2040
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N5031 over Hogback Irrigation Canal built?

It was built in 2012, making it 13 years old in 2025.

What condition is N5031 over Hogback Irrigation Canal 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 N5031 over Hogback Irrigation Canal carry?

About 1,155 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N5031 over Hogback Irrigation Canal?

The structure is 44 ft (13.5 m) long with a longest span of 37 ft (11.3 m) and a deck 36 ft wide.

Who owns N5031 over Hogback Irrigation Canal?

It is owned by the Bureau of Indian Affairs.