US Bridges

55-B057 over Costilla Creek

Poor

Taos County, New Mexico · Old Nm 3 in Costilla · Structure no. 000000000002647

Built
1940
85 years old
Condition
Poor
inspected November 2023
Type
Culvert
Concrete
Length
36 ft
5 main spans
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

55-B057 over Costilla Creek is a concrete culvert carrying 55-B057 over Costilla Creek in Taos County, New Mexico. It was built in 1940, so it is 85 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 250 vehicles a day, projected to reach 340 by 2043. The structure is 36 ft (11 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries55-B057
CrossesCostilla Creek
LocationOld Nm 3 in Costilla
RouteCounty Highway 55057
CountyTaos County
StateNew Mexico
Coordinates36.98358, -105.53364
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 15
Structure length36 ft (11 m)
Longest span7 ft (2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic340 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 55-B057 over Costilla Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is 55-B057 over Costilla Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does 55-B057 over Costilla Creek carry?

About 250 vehicles per day (2023 count).

How long is 55-B057 over Costilla Creek?

The structure is 36 ft (11 m) long with a longest span of 7 ft (2 m).

Who owns 55-B057 over Costilla Creek?

It is owned by the County Highway Agency.