US Bridges

US 231/SR 53 over Lilly Flagg Road

Good

Madison County, Alabama · US231 over Lily Flagg RD · Structure no. 020045

Built
2018
7 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
341 ft
3 main spans
Daily traffic
54,336
2023 count
Owner
State
State Highway Agency

About this bridge

US 231/SR 53 over Lilly Flagg Road is a prestressed concrete stringer/multi-beam or girder carrying US 231/SR 53 over Lilly Flagg Road in Madison County, Alabama. It was built in 2018, so it is 7 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 54,336 vehicles a day, roughly 5% of them trucks, projected to reach 76,070 by 2043. The structure is 341 ft (103.9 m) long and 76 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 231/SR 53
CrossesLilly Flagg Road
LocationUS231 over Lily Flagg RD
RouteU.S. Route 53
CountyMadison County
StateAlabama
Coordinates34.65799, -86.56965
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
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating98 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length341 ft (103.9 m)
Longest span114 ft (34.7 m)
Deck width76 ft (23.2 m)
Roadway width71 ft (21.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,336 (2023)
Projected traffic76,070 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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$6.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 231/SR 53 over Lilly Flagg Road built?

It was built in 2018, making it 7 years old in 2025.

What condition is US 231/SR 53 over Lilly Flagg Road 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 July 2024.

How much traffic does US 231/SR 53 over Lilly Flagg Road carry?

About 54,336 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 231/SR 53 over Lilly Flagg Road?

The structure is 341 ft (103.9 m) long with a longest span of 114 ft (34.7 m) and a deck 76 ft wide.

Who owns US 231/SR 53 over Lilly Flagg Road?

It is owned by the State Highway Agency.