US Bridges

LA0100 over Drainage Canal

Good

Acadia Parish, Louisiana · 0.86 MI W of LA 91 · Structure no. 030102113004461

Built
1997
28 years old
Condition
Good
inspected March 2024
Type
Culvert
Steel
Length
42 ft
3 main spans
Daily traffic
1,128
2021 count
Owner
State
State Highway Agency

About this bridge

LA0100 over Drainage Canal is a steel culvert carrying LA0100 over Drainage Canal in Acadia Parish, Louisiana. It was built in 1997, so it is 28 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 1,128 vehicles a day, roughly 12% of them trucks, projected to reach 1,240 by 2041. The structure is 42 ft (12.8 m) long and 170 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesLA0100
CrossesDrainage Canal
Location0.86 MI W of LA 91
RouteState Highway 100
Coordinates30.26794, -92.5126
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span8 ft (2.4 m)
Deck width170 ft (51.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,128 (2021)
Projected traffic1,240 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0100 over Drainage Canal built?

It was built in 1997, making it 28 years old in 2025.

What condition is LA0100 over Drainage Canal 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 March 2024.

How much traffic does LA0100 over Drainage Canal carry?

About 1,128 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0100 over Drainage Canal?

The structure is 42 ft (12.8 m) long with a longest span of 8 ft (2.4 m) and a deck 170 ft wide.

Who owns LA0100 over Drainage Canal?

It is owned by the State Highway Agency.