US Bridges

North ST over Chacahoula Canal

Poor

Terrebonne Parish, Louisiana · 0.01M W of Deadwood RD · Structure no. 025529418910001

Built
2011
14 years old
Condition
Poor
inspected April 2024
Type
Culvert
Steel
Length
69 ft
3 main spans
Daily traffic
135
2020 count
Owner
County
County Highway Agency

About this bridge

North ST over Chacahoula Canal is a steel culvert carrying North ST over Chacahoula Canal in Terrebonne Parish, Louisiana. It was built in 2011, so it is 14 years old, younger 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 3 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.

It carries about 135 vehicles a day, projected to reach 148 by 2040. The structure is 69 ft (21 m) long and 22 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesNorth ST
CrossesChacahoula Canal
Location0.01M W of Deadwood RD
RouteCounty Highway 0
CountyTerrebonne Parish
StateLouisiana
Coordinates29.70146, -90.99645
Functional classRural Local

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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadH 10
Structure length69 ft (21 m)
Longest span19 ft (5.8 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic135 (2020)
Projected traffic148 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$114,000
NavigationNo navigation control on waterway

Frequently asked questions

When was North ST over Chacahoula Canal built?

It was built in 2011, making it 14 years old in 2025.

What condition is North ST over Chacahoula 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 April 2024.

How much traffic does North ST over Chacahoula Canal carry?

About 135 vehicles per day (2020 count).

How long is North ST over Chacahoula Canal?

The structure is 69 ft (21 m) long with a longest span of 19 ft (5.8 m) and a deck 22 ft wide.

Who owns North ST over Chacahoula Canal?

It is owned by the County Highway Agency.