US Route 30 over Willow Creek

Lee County, Illinois · rated Fair in the 2025 National Bridge Inventory

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

• US Route 30 over Willow Creek in Lee County, Illinois, 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 1932 and reconstructed in 1983, making it 93 years old at the 2025 inventory.
• It carries about 1,450 vehicles a day (traffic count year 2023).
• Its listed owner is the state highway agency.
• It is one of 184 of the 373 inventoried bridges in Lee County rated fair (49.3%); 42 (11.3%) are rated poor.
• 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 → (41.76036, -89.02588)

Component ratings

Bridge details

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

Busiest bridges in Lee County

All bridges nearby: Lee County, IL bridge conditions · every bridge in Lee County · Illinois bridges.

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