US Bridges

FL-4046 over North Diversion Channel

Fair

Bernalillo County, New Mexico · 0.89 MI E of I-25 · Structure no. 000000000007166

Built
1969
56 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
132 ft
2 main spans
Daily traffic
21,045
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FL-4046 over North Diversion Channel is a prestressed concrete stringer/multi-beam or girder carrying FL-4046 over North Diversion Channel in Bernalillo County, New Mexico. It was built in 1969, so it is 56 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 21,045 vehicles a day, roughly 13% of them trucks, projected to reach 28,621 by 2043. The structure is 132 ft (40.2 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesFL-4046
CrossesNorth Diversion Channel
Location0.89 MI E of I-25
RouteCity Street 4046
CountyBernalillo County
StateNew Mexico
Coordinates35.10914, -106.6122
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating30.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length132 ft (40.2 m)
Longest span64 ft (19.5 m)
Deck width44 ft (13.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,045 (2023)
Projected traffic28,621 by 2043
Trucks13%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$423,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FL-4046 over North Diversion Channel built?

It was built in 1969, making it 56 years old in 2025.

What condition is FL-4046 over North Diversion Channel 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 February 2025.

How much traffic does FL-4046 over North Diversion Channel carry?

About 21,045 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is FL-4046 over North Diversion Channel?

The structure is 132 ft (40.2 m) long with a longest span of 64 ft (19.5 m) and a deck 44 ft wide.

Who owns FL-4046 over North Diversion Channel?

It is owned by the City or Municipal Highway Agency.