Adams Rd. over Little Marsh Bayou

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

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

• Adams Rd. over Little Marsh Bayou in Jefferson Davis 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 5 (fair condition) on the 0-9 scale.
• It was built in 1999, making it 26 years old at the 2025 inventory.
• It carries about 100 vehicles a day (traffic count year 2019).
• Its listed owner is the county highway agency.
• It is one of 170 of the 242 inventoried bridges in Jefferson Davis Parish rated fair (70.2%); 45 (18.6%) are rated poor.
• Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
• Its class is unchanged from 2024 (fair), but component ratings moved: deck 6 to 5, superstructure 6 to 5.
• Its most recent inspection on record is dated September 2024, on a 24-month routine inspection cycle.
• It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
• 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.

View this bridge on a map → (30.4096, -93.09828)

Component ratings

Bridge details

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

Busiest bridges in Jefferson Davis Parish

All bridges nearby: Jefferson Davis Parish, LA bridge conditions · every bridge in Jefferson Davis Parish · Louisiana bridges.

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