TR-173 (Proehl Roa over Stream
Tazewell County, Illinois · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- TR-173 (Proehl Roa over Stream in Tazewell County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, 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 100 vehicles a day (traffic count year 2023).
- Its listed owner is a town or township highway agency.
- It is one of 53 of the 358 inventoried bridges in Tazewell County rated poor (14.8%); 53 (14.8%) are rated poor.
- 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 → (40.45975, -89.74568)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 4 | Poor condition |
| Superstructure | 4 | Poor condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 37 ft |
| Location | Ctr-11-t23nr6w |
| NBI structure number | 090318200000000 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Tazewell County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-74 over Ill Riv T&p RR | 1958 | 57,800 | Fair |
| EB I-74 over Altorfer St | 2005 | 57,000 | Fair |
| EB I-74 over Ill 116(MAIN St) | 2005 | 40,800 | Fair |
| I-74 over US150 & Bike Path | 2015 | 39,000 | Fair |
| EB US 150 over Illinois River & T&p RR | 1948 | 30,000 | Poor |
| WB US 150 over Ill River T&p RR | 1982 | 30,000 | Poor |
All bridges nearby: Tazewell County, IL bridge conditions · every bridge in Tazewell County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.