Ledoux Dam - NH01058-3444


Incident ID NH01058-3444
Dam Name Ledoux Dam
Downstream Hazard Potential L
State NH
Incident Date 11/05/2021
Incident Type Non-failure
Incident Driver Seepage/internal Erosion
Incident Mechanism 1 Excessive/increased Seepage
Incident Mechanism 2 Animal Activity
Incident Mechanism 3 Vegetation
Incident Description Owner noted concentraed leakage midslope.
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident
Fatalities (Number) 0
Number of People Evacuated 0
Number of Habitable Structures Evacuated 0
Number of Habitable Structures Flooded 0
Other Infrastructure Impacts None
Economic Damages (in $) Unknown
Volume released at failure (ac-ft)
Response Pond was pumped down until embankment could be repaired.
Additional Remarks or Updates
Incident Time
Incident Duration 26 days
Incident Report Produced Yes
Information Sources NHDES
Owner Type P
Dam Type RE
Primary Purpose(s) R
EAP NR
Year Completed 1936
Year Modified 0
Dam Height 11 ft
Max Storage (ac-ft) 9 ac-ft
Surface Area (acres) 1 acres
River Name Unnamed
Latitude 43.0177
Longitude -71.4263
Regulatory Agency(ies) NHDES
NID Number NH01058
Attachments