Fas 349/CH 13 over Mackinaw River
McLean County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fas 349/CH 13 over Mackinaw River in McLean County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
- It was built in 2023, making it 2 years old at the 2025 inventory.
- It carries about 625 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 379 of the 625 inventoried bridges in McLean County rated good (60.6%); 16 (2.6%) 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 December 2023, on a 24-month routine inspection cycle.
- 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 → (40.55887, -88.61914)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 9 | 9 | Excellent condition |
| Superstructure | 9 | 9 | Excellent condition |
| Substructure | 9 | 9 | Excellent condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 272 ft |
| Location | 0.5 Mi SW of Colfax |
| NBI structure number | 057504000000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 2023 |
| 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 McLean County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-55/74 (NB & SB) over Unnamed Creek | 1991 | 42,100 | Fair |
| I-55 Busn Lp NB & over Sugar CR & Bike Path | 2000 | 41,100 | Fair |
| Fai 74 over Ditch | 1966 | 28,400 | Good |
| I-55 & FAS294 over Stream | 1976 | 25,400 | Fair |
| I-55 Busn Loop over US 51 at Bloomington | 1939 | 25,000 | Fair |
| I-55 Busn Loop over Norfolk Southern Railway | 1940 | 25,000 | Poor |
All bridges nearby: McLean County, IL bridge conditions · every bridge in McLean County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.