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Fdr 570 over Saline Bayou Trib.

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

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

Fdr 570 over Saline Bayou Trib. in Natchitoches Parish, Louisiana, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1968, making it 57 years old at the 2025 inventory.
It carries about 30 vehicles a day (traffic count year 1976).
It is one of 145 of the 320 inventoried bridges in Natchitoches Parish rated fair (45.3%); 46 (14.4%) 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 channel beam
Length	about 45 ft
Location	Strange Road
NBI structure number	080604000002478
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I0049 over La 490	1985	28,142	Good
I0049 over Bayou Barbue	1984	28,142	Fair
I0049 over Barbue Bayou Trib.	1984	28,142	Fair
I0049 over Emmanuel Road	1985	28,142	Fair
I0049 over Comitte Bayou	1984	28,142	Fair
I0049 over LA119	1985	28,142	Fair