US Bridges

FL-4048 over North Diversion Channel

Poor

Bernalillo County, New Mexico · 0.76 MI E JCT of I-25 · Structure no. 000000000007165

Built
1969
56 years old
Condition
Poor
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
132 ft
2 main spans
Daily traffic
15,030
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FL-4048 over North Diversion Channel is a prestressed concrete stringer/multi-beam or girder carrying FL-4048 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 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 15,030 vehicles a day, roughly 12% of them trucks, projected to reach 20,440 by 2043. The structure is 132 ft (40.2 m) long and 77 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFL-4048
CrossesNorth Diversion Channel
Location0.76 MI E JCT of I-25
RouteCity Street 4048
CountyBernalillo County
StateNew Mexico
Coordinates35.11652, -106.61217
Functional classUrban Other Principal Arterial

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
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
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 rating85.8 US tons
Inventory rating35.7 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 width77 ft (23.5 m)
Roadway width68 ft (20.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,030 (2023)
Projected traffic20,440 by 2043
Trucks12%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$731,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FL-4048 over North Diversion Channel built?

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

What condition is FL-4048 over North Diversion Channel 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 January 2025.

How much traffic does FL-4048 over North Diversion Channel carry?

About 15,030 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is FL-4048 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 77 ft wide.

Who owns FL-4048 over North Diversion Channel?

It is owned by the City or Municipal Highway Agency.