Co Rd 408/COL 7309 over Nppid Canal

Dawson County, Nebraska · rated Poor in the 2025 National Bridge Inventory

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

• Co Rd 408/COL 7309 over Nppid Canal in Dawson County, Nebraska, 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 1976, making it 49 years old at the 2025 inventory.
• It carries about 70 vehicles a day (traffic count year 1998).
• It is one of 11 of the 300 inventoried bridges in Dawson County rated poor (3.7%); 11 (3.7%) are rated poor.
• Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
• Its condition class and component ratings are unchanged from the 2024 inventory.
• Its most recent inspection on record is dated October 2024, on a 24-month routine inspection cycle.
• It is coded scour critical (NBI item 113 = 2): scour critical: extensive scour observed, foundations unstable.
• 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 → (40.9658, -100.2243)

Component ratings

Bridge details

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

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