Ill 97 & 123 over Rocky Branch Creek
Menard County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ill 97 & 123 over Rocky Branch Creek in Menard 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 1990, making it 35 years old at the 2025 inventory.
- It carries about 4,200 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 36 of the 89 inventoried bridges in Menard County rated good (40.4%); 10 (11.2%) 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 → (39.9767, -89.83986)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 29 ft |
| Location | at New Salem St Park |
| NBI structure number | 065200400000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Menard County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Il 97/IL 123 over Hemp Factory Branch | 1994 | 4,850 | Good |
| Ill 123 over Sangamon River | 1985 | 4,800 | Fair |
| Ill 29 over Indian Creek | 1957 | 4,200 | Fair |
| Ill 97 over Rock Creek | 1989 | 3,900 | Good |
| Ill 97 over C&im RR | 1939 | 2,750 | Fair |
| Ill 123 over Indian Creek | 1991 | 2,200 | Good |
All bridges nearby: Menard County, IL bridge conditions · every bridge in Menard County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.