Home › Louisiana › Caldwell Parish › LA0506 over Castor Relief

LA0506 over Castor Relief

Caldwell Parish, Louisiana · rated Poor in the 2025 National Bridge Inventory

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

LA0506 over Castor Relief in Caldwell Parish, Louisiana, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 0 (failed condition, out of service) on the 0-9 scale.
It was built in 1931, making it 94 years old at the 2025 inventory.
It carries about 306 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 12 of the 124 inventoried bridges in Caldwell Parish rated poor (9.7%); 12 (9.7%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings

Component	Rating (2025)	FHWA scale meaning
Deck	0	Failed condition, out of service
Superstructure	0	Failed condition, out of service
Substructure	0	Failed condition, out of service


Structure	Timber stringer or multi-beam girder
Length	about 97 ft
Location	6.5 Mi West of US 165
NBI structure number	581103450301181
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
US0165 over Black Bayou Relief	2004	13,633	Good
US0165 over Little Black Bayou	2004	13,633	Fair
US0165 over Hurricane Creek	2004	13,633	Good
US0165 over Ouachita River @ Columbi	2007	13,633	Fair
US0165 over Union Pacific R/R	2007	12,669	Fair
US0165 over Black Bayou Relief	1945	12,669	Fair