Mayfair Reservoir Dam
Low HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | Illinois |
| County | Cook |
| Nearest City | WESTCHESTER |
| River/Stream | TRIB SALT CREEK |
| Coordinates | 41.83869, -87.89351 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 70 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | METROPOLITAN WATER RECLAMATION DISTRICT |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 07/22/2025 |
| Emergency Action Plan | Yes |