US Bridges

55-Z082 over Rio Grande De Rancho

FairPosted for load

Taos County, New Mexico · East of NM-68/RNCHO Taos · Structure no. 000000000007774

Built
1935
90 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
40 ft
2 main spans
Daily traffic
243
2023 count
Owner
County
County Highway Agency

About this bridge

55-Z082 over Rio Grande De Rancho is a concrete slab carrying 55-Z082 over Rio Grande De Rancho in Taos County, New Mexico. It was built in 1935, so it is 90 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 243 vehicles a day, projected to reach 330 by 2043. The structure is 40 ft (12.2 m) long and 15 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries55-Z082
CrossesRio Grande De Rancho
LocationEast of NM-68/RNCHO Taos
RouteCounty Highway 55082
CountyTaos County
StateNew Mexico
Coordinates36.3552, -105.61135
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span21 ft (6.4 m)
Deck width15 ft (4.6 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic243 (2023)
Projected traffic330 by 2043
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$103,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 55-Z082 over Rio Grande De Rancho built?

It was built in 1935, making it 90 years old in 2025.

What condition is 55-Z082 over Rio Grande De Rancho 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 September 2024.

How much traffic does 55-Z082 over Rio Grande De Rancho carry?

About 243 vehicles per day (2023 count).

How long is 55-Z082 over Rio Grande De Rancho?

The structure is 40 ft (12.2 m) long with a longest span of 21 ft (6.4 m) and a deck 15 ft wide.

Who owns 55-Z082 over Rio Grande De Rancho?

It is owned by the County Highway Agency.