Hopkinton Milldam
Low HazardNot Rated ConditionEmergency Action Plan: Not Required
Location
| State | Iowa |
| County | Delaware |
| Nearest City | HOPKINTON |
| River/Stream | MAQUOKETA RIVER |
| Coordinates | 42.33770, -91.25770 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 175 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 433 acre-ft |
| Max Storage | 433 acre-ft |
| Normal Storage | 433 acre-ft |
| Surface Area | 90 acres |
| Drainage Area | 506 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Delaware County Conservation Board |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 06/01/1999 |
| Emergency Action Plan | Not Required |