US Bridges

Lagrange Road over Underwood Branch

Fair

Franklin County, Alabama · 0.1 MI W JCT US 43 · Structure no. 001139

Built
1934
91 years old
Condition
Fair
inspected February 2025
Type
Tee Beam
Concrete
Length
20 ft
1 main span
Daily traffic
400
1990 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lagrange Road over Underwood Branch is a concrete tee beam carrying Lagrange Road over Underwood Branch in Franklin County, Alabama. It was built in 1934, so it is 91 years old, older than the Alabama average of 51.1 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 400 vehicles a day, roughly 2% of them trucks, projected to reach 740 by 2030. The structure is 20 ft (6.1 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLagrange Road
CrossesUnderwood Branch
Location0.1 MI W JCT US 43
RouteCity Street 0
CountyFranklin County
StateAlabama
Coordinates34.52333, -87.72
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.5 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (1990)
Projected traffic740 by 2030
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$211,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lagrange Road over Underwood Branch built?

It was built in 1934, making it 91 years old in 2025.

What condition is Lagrange Road over Underwood Branch 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 Lagrange Road over Underwood Branch carry?

About 400 vehicles per day (1990 count), of which roughly 2% are trucks.

How long is Lagrange Road over Underwood Branch?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 23 ft wide.

Who owns Lagrange Road over Underwood Branch?

It is owned by the City or Municipal Highway Agency.