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Bosco Lane over Bayou Lafourch

Richland Parish, Louisiana · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Bosco Lane over Bayou Lafourch in Richland Parish, Louisiana, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1997, making it 28 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 1979).
Its listed owner is a town or township highway agency.
It is one of 137 of the 204 inventoried bridges in Richland Parish rated fair (67.2%); 20 (9.8%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 450 ft
Location	Richland Ph Road No 60
NBI structure number	054232169920161
Condition class	Fair

Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.

Bridge	Built	Vehicles/day	Condition
I0020 over Old B Lafourche	1968	38,890	Fair
I0020 over Bayou Lafourche	1968	38,890	Fair
I0020 over Diversion Canal	1968	38,890	Fair
I0020 over Bayou Crew	1968	38,890	Fair
I0020 over Drain	1968	38,890	Fair
I0020 over Boeuf River	1968	38,890	Fair