US Bridges

FL-4048 over I-25 NB Frontage RD

Poor

Bernalillo County, New Mexico · Candelaria over Frtg/Albq · Structure no. 000000000008502

Built
1962
63 years old, rebuilt 1987
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
210 ft
4 main spans
Daily traffic
17,546
2023 count
Owner
State
State Highway Agency

About this bridge

FL-4048 over I-25 NB Frontage RD is a prestressed concrete continuous stringer/multi-beam or girder carrying FL-4048 over I-25 NB Frontage RD in Bernalillo County, New Mexico. It was built in 1962 and reconstructed in 1987, so it is 63 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 17,546 vehicles a day, roughly 13% of them trucks, projected to reach 23,862 by 2043. The structure is 210 ft (64 m) long and 89 ft wide.

CarriesFL-4048
CrossesI-25 NB Frontage RD
LocationCandelaria over Frtg/Albq
RouteCity Street 4048
Coordinates35.1142, -106.6251
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length210 ft (64 m)
Longest span72 ft (21.9 m)
Deck width89 ft (27.1 m)
Roadway width79 ft (24.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,546 (2023)
Projected traffic23,862 by 2043
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FL-4048 over I-25 NB Frontage RD built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1987.

What condition is FL-4048 over I-25 NB Frontage RD 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 April 2023.

How much traffic does FL-4048 over I-25 NB Frontage RD carry?

About 17,546 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is FL-4048 over I-25 NB Frontage RD?

The structure is 210 ft (64 m) long with a longest span of 72 ft (21.9 m) and a deck 89 ft wide.

Who owns FL-4048 over I-25 NB Frontage RD?

It is owned by the State Highway Agency.