US Bridges

47-0C23 over Gallinas River

Good

San Miguel County, New Mexico · 0.4 MI E of JCT LOOP-15 · Structure no. 000000000008456

Built
1982
43 years old
Condition
Good
inspected April 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
67 ft
3 main spans
Daily traffic
204
2023 count
Owner
County
County Highway Agency

About this bridge

47-0C23 over Gallinas River is a aluminum, wrought iron, or cast iron culvert carrying 47-0C23 over Gallinas River in San Miguel County, New Mexico. It was built in 1982, so it is 43 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 204 vehicles a day, projected to reach 277 by 2043. The structure is 67 ft (20.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries47-0C23
CrossesGallinas River
Location0.4 MI E of JCT LOOP-15
RouteCounty Highway 47023
Coordinates35.57589, -105.21359
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans3
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic204 (2023)
Projected traffic277 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 47-0C23 over Gallinas River built?

It was built in 1982, making it 43 years old in 2025.

What condition is 47-0C23 over Gallinas 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 April 2024.

How much traffic does 47-0C23 over Gallinas River carry?

About 204 vehicles per day (2023 count).

How long is 47-0C23 over Gallinas River?

The structure is 67 ft (20.4 m) long with a longest span of 18 ft (5.5 m).

Who owns 47-0C23 over Gallinas River?

It is owned by the County Highway Agency.