US Bridges

39-Z083 over Rio Quemado

Fair

Rio Arriba County, New Mexico · 1.1 MI S Nm 76 @ Mm 11.4 · Structure no. 000000000008669

Built
1986
39 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
166
2023 count
Owner
County
County Highway Agency

About this bridge

39-Z083 over Rio Quemado is a prestressed concrete tee beam carrying 39-Z083 over Rio Quemado in Rio Arriba County, New Mexico. It was built in 1986, so it is 39 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 166 vehicles a day, projected to reach 225 by 2043. The structure is 32 ft (9.7 m) long and 25 ft wide.

Location

Open in Google Maps
Carries39-Z083
CrossesRio Quemado
Location1.1 MI S Nm 76 @ Mm 11.4
RouteCounty Highway 39083
CountyRio Arriba County
StateNew Mexico
Coordinates36.00653, -105.85861
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span32 ft (9.7 m)
Deck width25 ft (7.5 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic166 (2023)
Projected traffic225 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$46,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 39-Z083 over Rio Quemado built?

It was built in 1986, making it 39 years old in 2025.

What condition is 39-Z083 over Rio Quemado in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does 39-Z083 over Rio Quemado carry?

About 166 vehicles per day (2023 count).

How long is 39-Z083 over Rio Quemado?

The structure is 32 ft (9.7 m) long with a longest span of 32 ft (9.7 m) and a deck 25 ft wide.

Who owns 39-Z083 over Rio Quemado?

It is owned by the County Highway Agency.