Siena
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Colorado |
| County | Broomfield |
| Nearest City | LAFAYETTE |
| River/Stream | COAL CREEK-TR |
| Coordinates | 39.98164, -105.03020 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 40 ft |
| Dam Length | 1,250 ft |
| Year Completed | 2004 (22 years old) |
Storage & Hydraulics
| NID Storage | 640 acre-ft |
| Max Storage | 640 acre-ft |
| Normal Storage | 450 acre-ft |
| Surface Area | 20 acres |
| Max Discharge | 690 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF BROOMFIELD (MIDDLETON, BRENNAN) |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/03/2022 |
| Emergency Action Plan | Yes |