US Bridges

Mills Ave. (lv) over Gallinas River

Good

San Miguel County, New Mexico · 1.0 M W JCT US 85 & Mills · Structure no. 000000000008941

Built
1998
27 years old
Condition
Good
inspected December 2024
Type
Slab
Concrete Continuous
Length
203 ft
6 main spans
Daily traffic
14,679
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mills Ave. (lv) over Gallinas River is a concrete continuous slab carrying Mills Ave. (lv) over Gallinas River in San Miguel County, New Mexico. It was built in 1998, so it is 27 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 14,679 vehicles a day, roughly 5% of them trucks, projected to reach 19,963 by 2043. The structure is 203 ft (61.9 m) long and 79 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMills Ave. (lv)
CrossesGallinas River
Location1.0 M W JCT US 85 & Mills
RouteCity Street 4560
Coordinates35.60256, -105.2284
Functional classUrban Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length203 ft (61.9 m)
Longest span36 ft (11 m)
Deck width79 ft (24.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,679 (2023)
Projected traffic19,963 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mills Ave. (lv) over Gallinas River built?

It was built in 1998, making it 27 years old in 2025.

What condition is Mills Ave. (lv) 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 December 2024.

How much traffic does Mills Ave. (lv) over Gallinas River carry?

About 14,679 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Mills Ave. (lv) over Gallinas River?

The structure is 203 ft (61.9 m) long with a longest span of 36 ft (11 m) and a deck 79 ft wide.

Who owns Mills Ave. (lv) over Gallinas River?

It is owned by the City or Municipal Highway Agency.