Monte Sano Ave over Drain to Monte Sano Bayo

East Baton Rouge Parish, Louisiana · rated Poor in the 2025 National Bridge Inventory

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

• Monte Sano Ave over Drain to Monte Sano Bayo in East Baton Rouge Parish, Louisiana, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
• It was built in 1980, making it 45 years old at the 2025 inventory.
• It carries about 192 vehicles a day (traffic count year 2023).
• It is one of 103 of the 549 inventoried bridges in East Baton Rouge Parish rated poor (18.8%); 103 (18.8%) 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.

View this bridge on a map → (30.50999, -91.15423)

Component ratings

Bridge details

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

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Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.