US Bridges

FR-4051 over Unnamed Waterway

Fair

Bernalillo County, New Mexico · 13.2 M E JCT NM-6/I-40 · Structure no. 000000000002980

Built
1933
92 years old, rebuilt 1954
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
44 ft
4 main spans
Daily traffic
718
2023 count
Owner
State
State Highway Agency

About this bridge

FR-4051 over Unnamed Waterway is a concrete culvert carrying FR-4051 over Unnamed Waterway in Bernalillo County, New Mexico. It was built in 1933 and reconstructed in 1954, 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 5 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 718 vehicles a day, roughly 11% of them trucks, projected to reach 976 by 2043. The structure is 44 ft (13.3 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesFR-4051
CrossesUnnamed Waterway
Location13.2 M E JCT NM-6/I-40
RouteState Highway 4051
CountyBernalillo County
StateNew Mexico
Coordinates35.03145, -106.95089
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.1 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length44 ft (13.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic718 (2023)
Projected traffic976 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FR-4051 over Unnamed Waterway built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1954.

What condition is FR-4051 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 September 2023.

How much traffic does FR-4051 over Unnamed Waterway carry?

About 718 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is FR-4051 over Unnamed Waterway?

The structure is 44 ft (13.3 m) long with a longest span of 10 ft (3 m).

Who owns FR-4051 over Unnamed Waterway?

It is owned by the State Highway Agency.