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US0080 over Lafourche Bayou

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

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

US0080 over Lafourche Bayou 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 2017, making it 8 years old at the 2025 inventory.
It carries about 2,747 vehicles a day (traffic count year 2021).
Its listed owner is the state 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 multiple box beam
Length	about 560 ft
Location	3.6 Mi W of La 133
NBI structure number	054200000050235
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