Columbia Parkway over IR471 Ramp Egg Cul

Hamilton County, Ohio · rated Fair in the 2025 National Bridge Inventory

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

• Columbia Parkway over IR471 Ramp Egg Cul in Hamilton County, Ohio, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
• It was built in 1938 and reconstructed in 1997, making it 87 years old at the 2025 inventory.
• It carries about 56,580 vehicles a day (traffic count year 2005).
• Its listed owner is the state highway agency.
• It is one of 313 of the 782 inventoried bridges in Hamilton County rated fair (40.0%); 22 (2.8%) 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: superstructure 5 to 6.
• Its most recent inspection on record is dated August 2024, on a 12-month routine inspection cycle.
• It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
• 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 → (39.10318, -84.50247)

Component ratings

Bridge details

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

Busiest bridges in Hamilton County

All bridges nearby: Hamilton County, OH bridge conditions · every bridge in Hamilton County · Ohio bridges.

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