Tr 150 over Troublesome Creek

McDonough County, Illinois · rated Good in the 2025 National Bridge Inventory

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

• Tr 150 over Troublesome Creek in McDonough County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
• It was built in 1985, making it 40 years old at the 2025 inventory.
• It carries about 75 vehicles a day (traffic count year 2021).
• Its listed owner is a town or township highway agency.
• It is one of 112 of the 210 inventoried bridges in McDonough County rated good (53.3%); 13 (6.2%) are rated poor.
• A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

View this bridge on a map → (40.37507, -90.79155)

Component ratings

Bridge details

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

Busiest bridges in McDonough County

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

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