Tr 110 over Stream
Mercer County, Illinois · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tr 110 over Stream in Mercer County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1983, making it 42 years old at the 2025 inventory.
- It carries about 25 vehicles a day (traffic count year 2024).
- Its listed owner is a town or township highway agency.
- It is one of 23 of the 163 inventoried bridges in Mercer County rated poor (14.1%); 23 (14.1%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated September 2023, on a 24-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 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 → (41.26971, -90.82239)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 4 | 4 | Poor condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel orthotropic |
| Length | about 88 ft |
| Location | Nw-26-t15nr4w |
| NBI structure number | 066541400000000 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | September 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Mercer County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 67 over Donahue Creek | 1997 | 5,300 | Fair |
| US 67 over Edwards River | 1998 | 5,300 | Fair |
| Ill 94 over Edwards River | 1960 | 3,450 | Fair |
| Ill 94 over Camp Creek | 1960 | 2,900 | Fair |
| US 67 over Pope Creek | 2024 | 2,600 | Good |
| US 67 over Henderson CR | 1931 | 2,400 | Poor |
All bridges nearby: Mercer County, IL bridge conditions · every bridge in Mercer County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.