US Bridges

43-0011 over San Miguel Canyon

Good

Sandoval County, New Mexico · 6.5 M S JCT US-550/NM-197 · Structure no. 000000000010149

Built
2023
2 years old
Condition
Good
inspected September 2023
Type
Culvert
Steel
Length
31 ft
3 main spans
Daily traffic
105
2021 count
Owner
County
County Highway Agency

About this bridge

43-0011 over San Miguel Canyon is a steel culvert carrying 43-0011 over San Miguel Canyon in Sandoval County, New Mexico. It was built in 2023, so it is 2 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 105 vehicles a day, roughly 15% of them trucks, projected to reach 142 by 2041. The structure is 31 ft (9.6 m) long. If it were closed, the detour would be 14.9 mi (24 km).

Carries43-0011
CrossesSan Miguel Canyon
Location6.5 M S JCT US-550/NM-197
RouteCounty Highway 43011
Coordinates35.92234, -106.94136
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.6 m)
Longest span9 ft (2.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic105 (2021)
Projected traffic142 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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$255,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 43-0011 over San Miguel Canyon built?

It was built in 2023, making it 2 years old in 2025.

What condition is 43-0011 over San Miguel Canyon 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 September 2023.

How much traffic does 43-0011 over San Miguel Canyon carry?

About 105 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is 43-0011 over San Miguel Canyon?

The structure is 31 ft (9.6 m) long with a longest span of 9 ft (2.6 m).

Who owns 43-0011 over San Miguel Canyon?

It is owned by the County Highway Agency.