US Bridges

Bayouside DR over Bayou Petit Caillou

Fair

Terrebonne Parish, Louisiana · .03 Miles North of LA 56 · Structure no. 025500000020447

Built
2010
15 years old
Condition
Fair
inspected June 2023
Type
Movable - Bascule
Steel
Length
158 ft
1 main span
Daily traffic
2,912
2021 count
Owner
County
County Highway Agency

About this bridge

Bayouside DR over Bayou Petit Caillou is a steel movable - bascule carrying Bayouside DR over Bayou Petit Caillou in Terrebonne Parish, Louisiana. It was built in 2010, so it is 15 years old, younger 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 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 2,912 vehicles a day, projected to reach 3,203 by 2041. The structure is 158 ft (48.2 m) long and 55 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBayouside DR
CrossesBayou Petit Caillou
Location.03 Miles North of LA 56
RouteCounty Highway 0
CountyTerrebonne Parish
StateLouisiana
Coordinates29.5485, -90.63276
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating41.4 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckOpen grating
Main spans1 (+4 approach)
Design loadHS 20
Structure length158 ft (48.2 m)
Longest span72 ft (21.9 m)
Deck width55 ft (16.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,912 (2021)
Projected traffic3,203 by 2041
Trucks—
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Bayouside DR over Bayou Petit Caillou built?

It was built in 2010, making it 15 years old in 2025.

What condition is Bayouside DR over Bayou Petit Caillou 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 Bayouside DR over Bayou Petit Caillou carry?

About 2,912 vehicles per day (2021 count).

How long is Bayouside DR over Bayou Petit Caillou?

The structure is 158 ft (48.2 m) long with a longest span of 72 ft (21.9 m) and a deck 55 ft wide.

Who owns Bayouside DR over Bayou Petit Caillou?

It is owned by the County Highway Agency.