Calcasieu County, LA

463 public highway bridges

Calcasieu County Bridge Snapshot

Calcasieu County, Louisiana contains 463 public highway bridges in the FHWA National Bridge Inventory. Roughly 18.8% are rated “Good,” 64.1% “Fair,” 6.9% “Poor,” and 6.9% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in LA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

463
Total Bridges
18.8%
Good
6.9%
Poor
6.9%
Structurally Deficient

Condition Distribution

Good
18.8% (87)
Fair
64.1% (297)
Poor
6.9% (32)
SD
6.9% (32)

All Bridges (463)

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial