US Bridges

Falgout Canal RD over Houma Navigation Canal

FairPosted for load

Terrebonne Parish, Louisiana · 1.0 MI W of LA 57 · Structure no. 025529231904381

Built
1958
67 years old
Condition
Fair
inspected June 2023
Type
Movable - Swing
Steel
Length
326 ft
11 main spans
Daily traffic
363
2023 count
Owner
County
County Highway Agency

About this bridge

Falgout Canal RD over Houma Navigation Canal is a steel movable - swing carrying Falgout Canal RD over Houma Navigation Canal in Terrebonne Parish, Louisiana. It was built in 1958, so it is 67 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 363 vehicles a day, projected to reach 399 by 2043. The structure is 326 ft (99.4 m) long and 30 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesFalgout Canal RD
CrossesHouma Navigation Canal
Location1.0 MI W of LA 57
RouteCounty Highway 0
CountyTerrebonne Parish
StateLouisiana
Coordinates29.38471, -90.7304
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26 US tons
Inventory rating18 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckSteel plate
Main spans11
Design loadHS 15
Structure length326 ft (99.4 m)
Longest span121 ft (36.9 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic363 (2023)
Projected traffic399 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Falgout Canal RD over Houma Navigation Canal built?

It was built in 1958, making it 67 years old in 2025.

What condition is Falgout Canal RD over Houma Navigation Canal 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 June 2023.

How much traffic does Falgout Canal RD over Houma Navigation Canal carry?

About 363 vehicles per day (2023 count).

How long is Falgout Canal RD over Houma Navigation Canal?

The structure is 326 ft (99.4 m) long with a longest span of 121 ft (36.9 m) and a deck 30 ft wide.

Who owns Falgout Canal RD over Houma Navigation Canal?

It is owned by the County Highway Agency.