US Bridges

FL-4923 over Alamogordo Bypass US-54

Good

Otero County, New Mexico · 0.32 M E JCT US54/US-70 · Structure no. 000000000009084

Built
2002
23 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
185 ft
2 main spans
Daily traffic
23,689
2023 count
Owner
State
State Highway Agency

About this bridge

FL-4923 over Alamogordo Bypass US-54 is a prestressed concrete continuous stringer/multi-beam or girder carrying FL-4923 over Alamogordo Bypass US-54 in Otero County, New Mexico. It was built in 2002, so it is 23 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 23,689 vehicles a day, roughly 13% of them trucks, projected to reach 32,217 by 2043. The structure is 185 ft (56.4 m) long and 115 ft wide.

CarriesFL-4923
CrossesAlamogordo Bypass US-54
Location0.32 M E JCT US54/US-70
RouteCity Street 4923
Coordinates32.87365, -105.96519
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.1 US tons
Inventory rating33.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length185 ft (56.4 m)
Longest span90 ft (27.4 m)
Deck width115 ft (35.1 m)
Roadway width98 ft (29.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,689 (2023)
Projected traffic32,217 by 2043
Trucks13%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 FL-4923 over Alamogordo Bypass US-54 built?

It was built in 2002, making it 23 years old in 2025.

What condition is FL-4923 over Alamogordo Bypass US-54 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does FL-4923 over Alamogordo Bypass US-54 carry?

About 23,689 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is FL-4923 over Alamogordo Bypass US-54?

The structure is 185 ft (56.4 m) long with a longest span of 90 ft (27.4 m) and a deck 115 ft wide.

Who owns FL-4923 over Alamogordo Bypass US-54?

It is owned by the State Highway Agency.