Stamper Ln/ Mss 11 over Rocky Fork
Good Condition59 years old2,150 vehicles/day
Location
| State | Illinois |
| County | Madison |
| Location | 1mi NW Alton |
| Carries | Stamper Ln/ Mss 11 |
| Crosses | Rocky Fork |
| Coordinates | 38.94757, -90.21309 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 27.9 ft (8.5 m) |
| Max Span | 12.5 ft (3.8 m) |
| Deck Area | 59.5 sq m |
| Main Spans | 2 |
| Year Built | 1967 |
Traffic
| Avg Daily Traffic | 2,150 (2021) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 124 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 060330300000000 |