Ill 29 over Senechwine CR
Peoria County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ill 29 over Senechwine CR in Peoria County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1939 and reconstructed in 1991, making it 86 years old at the 2025 inventory.
- It carries about 6,400 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 212 of the 351 inventoried bridges in Peoria County rated fair (60.4%); 63 (17.9%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated October 2024, on a 24-month routine inspection cycle.
- 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 → (40.93754, -89.48606)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 220 ft |
| Location | N Edge Chillicothe |
| NBI structure number | 072001400000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Peoria County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| EB I-474 474 Rp 1. over Ill 8 | 1978 | 36,600 | Fair |
| EB I-74 Rp F-2 over Glen Oak Ave | 2006 | 35,800 | Fair |
| US 150 over Big Hollow Creek | 1940 | 35,400 | Fair |
| US 150 WB over Il 29 | 1995 | 30,000 | Poor |
| WB I-74 over Glen Oak Ave | 2006 | 28,900 | Fair |
| SB Ill 6 over WB I-74 | 1978 | 28,400 | Fair |
All bridges nearby: Peoria County, IL bridge conditions · every bridge in Peoria County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.