US 36(FAP 323) over Lake Fork River
Douglas County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 36(FAP 323) over Lake Fork River in Douglas County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1987, making it 38 years old at the 2025 inventory.
- It carries about 3,950 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 173 of the 233 inventoried bridges in Douglas County rated good (74.2%); 4 (1.7%) 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 February 2022, on a 48-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 → (39.79182, -88.46294)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 183 ft |
| Location | W Edge of Atwood |
| NBI structure number | 021005100000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2022 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Douglas County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-57 over Stream | 1968 | 22,700 | Good |
| I-57 (NB) over Fap 323(US 36) | 1968 | 11,050 | Good |
| I-57 (SB) over Fap 323(US 36) | 1968 | 11,050 | Good |
| I-57 (NB) over UPRR & Decatur&Estrn ILR | 1969 | 11,050 | Fair |
| I-57 (SB) over UPRR & Decatur&Estrn ILR | 1969 | 11,050 | Fair |
| I-57 (NB) over Hayes Branch | 1969 | 11,050 | Fair |
All bridges nearby: Douglas County, IL bridge conditions · every bridge in Douglas County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.