US Bridges

11-C048 over Unnamed Waterway

Fair

De Baca County, New Mexico · 4.6 MI E US-60 @ MP-332.1 · Structure no. 000000000002120

Built
1933
92 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
21 ft
4 main spans
Daily traffic
3,352
2023 count
Owner
County
County Highway Agency

About this bridge

11-C048 over Unnamed Waterway is a concrete culvert carrying 11-C048 over Unnamed Waterway in De Baca County, New Mexico. It was built in 1933, so it is 92 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 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 3,352 vehicles a day, roughly 17% of them trucks, projected to reach 4,558 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries11-C048
CrossesUnnamed Waterway
Location4.6 MI E US-60 @ MP-332.1
RouteCounty Highway 11048
CountyDe Baca County
StateNew Mexico
Coordinates34.44795, -104.17214
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.1 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length21 ft (6.4 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,352 (2023)
Projected traffic4,558 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$28,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 11-C048 over Unnamed Waterway built?

It was built in 1933, making it 92 years old in 2025.

What condition is 11-C048 over Unnamed Waterway 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 July 2023.

How much traffic does 11-C048 over Unnamed Waterway carry?

About 3,352 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is 11-C048 over Unnamed Waterway?

The structure is 21 ft (6.4 m) long with a longest span of 5 ft (1.5 m).

Who owns 11-C048 over Unnamed Waterway?

It is owned by the County Highway Agency.