Upland Basin
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | San Bernardino |
| Nearest City | Montclair |
| Coordinates | 34.09660, -117.69800 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 2,275 ft |
| Year Completed | 2008 (18 years old) |
Storage & Hydraulics
| NID Storage | 362 acre-ft |
| Max Storage | 362 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | City of Upland |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/10/2025 |
| Emergency Action Plan | Yes |