US Bridges

39-Z443 over Los Pinos River

Good

Rio Arriba County, New Mexico · U.S.285/COLO CR C · Structure no. 000000000010158

Built
2024
1 years old
Condition
Good
inspected February 2024
Type
Mixed Types
Steel
Length
48 ft
1 main span
Daily traffic
156
2022 count
Owner
County
County Highway Agency

About this bridge

39-Z443 over Los Pinos River is a steel mixed types carrying 39-Z443 over Los Pinos River in Rio Arriba County, New Mexico. It was built in 2024, so it is 1 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 156 vehicles a day, projected to reach 212 by 2042. The structure is 48 ft (14.6 m) long and 9 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries39-Z443
CrossesLos Pinos River
LocationU.S.285/COLO CR C
RouteCounty Highway 39443
CountyRio Arriba County
StateNew Mexico
Coordinates36.98852, -106.06022
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating18 US tons

Structure

Structure typeMixed Types
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span48 ft (14.6 m)
Deck width9 ft (2.7 m)
Roadway width9 ft (2.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic156 (2022)
Projected traffic212 by 2042
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$113,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 39-Z443 over Los Pinos River built?

It was built in 2024, making it 1 years old in 2025.

What condition is 39-Z443 over Los Pinos 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 February 2024.

How much traffic does 39-Z443 over Los Pinos River carry?

About 156 vehicles per day (2022 count).

How long is 39-Z443 over Los Pinos River?

The structure is 48 ft (14.6 m) long with a longest span of 48 ft (14.6 m) and a deck 9 ft wide.

Who owns 39-Z443 over Los Pinos River?

It is owned by the County Highway Agency.