US Bridges

Martin LN over Drainage Canal

PoorPosted for load

Plaquemines Parish, Louisiana · 0.2 MI South of HWY 23 · Structure no. 023829311894421

Built
1987
38 years old
Condition
Poor
inspected January 2024
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
—
2016 count
Owner
County
County Highway Agency

About this bridge

Martin LN over Drainage Canal is a concrete slab carrying Martin LN over Drainage Canal in Plaquemines Parish, Louisiana. It was built in 1987, so it is 38 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. Its operating status is: posted for load restriction.

No traffic count is recorded. The structure is 57 ft (17.4 m) long and 27 ft wide.

CarriesMartin LN
CrossesDrainage Canal
Location0.2 MI South of HWY 23
RouteCounty Highway 0
Coordinates29.51868, -89.73634
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating16.1 US tons
Inventory rating12.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$217,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Martin LN over Drainage Canal built?

It was built in 1987, making it 38 years old in 2025.

What condition is Martin LN over Drainage 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 January 2024.

How much traffic does Martin LN over Drainage Canal carry?

No traffic count is recorded for this structure.

How long is Martin LN over Drainage Canal?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Martin LN over Drainage Canal?

It is owned by the County Highway Agency.