Copper River Hwy over Copper Delta

Chugach Census Area, Alaska · rated Poor in the 2025 National Bridge Inventory

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

• Copper River Hwy over Copper Delta in Chugach Census Area, Alaska, 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 1977, making it 48 years old at the 2025 inventory.
• It carries about 65 vehicles a day (traffic count year 2011).
• Its listed owner is the state highway agency.
• It is one of 8 of the 65 inventoried bridges in Chugach Census Area rated poor (12.3%); 8 (12.3%) are rated poor.
• Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
• Its class is unchanged from 2024 (poor), but component ratings moved: deck 6 to 7, substructure 1 to 4.
• 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 = 1): scour critical: field review indicates failure of piers or abutments is imminent.
• 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 → (60.51709, -144.85844)

Component ratings

Bridge details

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

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