US Bridges

FL-4046 over Piedra Lisa Arroyo

Fair

Bernalillo County, New Mexico · 0.23 MI W of Juan Tabo · Structure no. 000000000007969

Built
1977
48 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
37 ft
1 main span
Daily traffic
16,548
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FL-4046 over Piedra Lisa Arroyo is a concrete culvert carrying FL-4046 over Piedra Lisa Arroyo in Bernalillo County, New Mexico. It was built in 1977, so it is 48 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 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 16,548 vehicles a day, roughly 13% of them trucks, projected to reach 22,505 by 2043. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFL-4046
CrossesPiedra Lisa Arroyo
Location0.23 MI W of Juan Tabo
RouteCity Street 4046
Coordinates35.10879, -106.51964
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span24 ft (7.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,548 (2023)
Projected traffic22,505 by 2043
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 FL-4046 over Piedra Lisa Arroyo built?

It was built in 1977, making it 48 years old in 2025.

What condition is FL-4046 over Piedra Lisa Arroyo 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 FL-4046 over Piedra Lisa Arroyo carry?

About 16,548 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is FL-4046 over Piedra Lisa Arroyo?

The structure is 37 ft (11.3 m) long with a longest span of 24 ft (7.2 m).

Who owns FL-4046 over Piedra Lisa Arroyo?

It is owned by the City or Municipal Highway Agency.