Ramp to IL 3 SB over PALMER CRK Overflow
Monroe County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ramp to IL 3 SB over PALMER CRK Overflow in Monroe County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1991, making it 34 years old at the 2025 inventory.
- It carries about 1,700 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 79 of the 132 inventoried bridges in Monroe County rated good (59.8%); 11 (8.3%) are rated poor.
- 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 → (38.46274, -90.22437)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 47 ft |
| Location | 0.8 mi S of I-255 |
| NBI structure number | 067200300000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Monroe County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| IL3NB->255WB Rmp E over 255SB->IL3SB Ramp B | 1982 | 36,900 | Fair |
| Il 3 SB over Palmer Rd/Palmer Crk | 1991 | 36,900 | Fair |
| Ill 3 NB over Palmer Rd/Palmer Crk | 1984 | 30,200 | Fair |
| Fai 255 EB over Mississippi River | 1986 | 25,850 | Fair |
| Fai 255WB over Mississippi River | 1984 | 25,850 | Fair |
| Fai 255 Nb/eb over UPRR | 1984 | 25,850 | Poor |
All bridges nearby: Monroe County, IL bridge conditions · every bridge in Monroe County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.