US Bridges

Happy Town Road over Little Alabama Bayou

Good

St. Martin Parish, Louisiana · Sec 111 T7S R8E · Structure no. 000043614-00001

Built
2001
24 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete
Length
113 ft
5 main spans
Daily traffic
30
2024 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

Happy Town Road over Little Alabama Bayou is a concrete slab carrying Happy Town Road over Little Alabama Bayou in St. Martin Parish, Louisiana. It was built in 2001, so it is 24 years old, younger than the Louisiana average of 43 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 30 vehicles a day, projected to reach 35 by 2044. The structure is 113 ft (34.4 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesHappy Town Road
CrossesLittle Alabama Bayou
LocationSec 111 T7S R8E
RouteFederal Lands Road 0
CountySt. Martin Parish
StateLouisiana
Coordinates30.423, -91.68633
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64 US tons
Inventory rating49.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckOther
Main spans5
Design loadUnknown
Structure length113 ft (34.4 m)
Longest span23 ft (7 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic30 (2024)
Projected traffic35 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Fish and Wildlife
Maintained byBureau of Fish and Wildlife
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Happy Town Road over Little Alabama Bayou built?

It was built in 2001, making it 24 years old in 2025.

What condition is Happy Town Road over Little Alabama Bayou 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 November 2024.

How much traffic does Happy Town Road over Little Alabama Bayou carry?

About 30 vehicles per day (2024 count).

How long is Happy Town Road over Little Alabama Bayou?

The structure is 113 ft (34.4 m) long with a longest span of 23 ft (7 m) and a deck 16 ft wide.

Who owns Happy Town Road over Little Alabama Bayou?

It is owned by the Bureau of Fish and Wildlife.