US Bridges

LA0308 over Scully Canal

PoorPosted for load

Lafourche Parish, Louisiana · .6 MI South of LA 308 Spu · Structure no. 022904070111941

Built
1954
71 years old
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
127 ft
1 main span
Daily traffic
5,198
2021 count
Owner
State
State Highway Agency

About this bridge

LA0308 over Scully Canal is a steel stringer/multi-beam or girder carrying LA0308 over Scully Canal in Lafourche Parish, Louisiana. It was built in 1954, so it is 71 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 5,198 vehicles a day, roughly 13% of them trucks, projected to reach 5,717 by 2041. The structure is 127 ft (38.7 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesLA0308
CrossesScully Canal
Location.6 MI South of LA 308 Spu
RouteState Highway 308
CountyLafourche Parish
StateLouisiana
Coordinates29.54146, -90.33563
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating17.2 US tons
Inventory rating13.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckSteel plate
Main spans1 (+4 approach)
Design loadH 15
Structure length127 ft (38.7 m)
Longest span50 ft (15.2 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,198 (2021)
Projected traffic5,717 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$612,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0308 over Scully Canal built?

It was built in 1954, making it 71 years old in 2025.

What condition is LA0308 over Scully Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does LA0308 over Scully Canal carry?

About 5,198 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0308 over Scully Canal?

The structure is 127 ft (38.7 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns LA0308 over Scully Canal?

It is owned by the State Highway Agency.