|
Incident ID |
NY12268-3364 |
|
Dam Name |
WATERVILLE RESERVOIR DAM #2 |
|
Downstream Hazard Potential |
S |
|
State |
NY |
|
Incident Date |
10/31/2019 |
|
Incident Type |
Non-failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Overtopping |
|
Incident Mechanism 2 |
Debris Clogging |
|
Incident Mechanism 3 |
Insufficient Spillway Capacity |
|
Incident Description |
Record runoff and stream flows from the upstream drainage basin blocked the spillway channel. High stream flows and scour velocities eroded away the deteriorated but functional concrete lined spillway channel and transported debris. This blockage re-routed the stream flow into right basin of NY12268. This basin filled to capacity and overtopped the dividing wall basins. Left Basin (No. 1) filled to capacity and then overtopped the embankment. The high water flow and velocity eroded a section of the earth and stone lined core wall at the location of a water main penetration. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
No |
|
Fatalities (Number) |
0 |
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
0 |
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
Roads, Water/sewer lines |
|
Economic Damages (in $) |
$1 million to $5 million |
|
Volume released at failure (ac-ft) |
|
|
Response |
|
|
Additional Remarks or Updates |
incident report by Village's consulting engineer |
|
Incident Time |
20:00 |
|
Incident Duration |
1 day |
|
Incident Report Produced |
Yes |
|
Information Sources |
NY Dam Safety |
|
Owner Type |
L |
|
Dam Type |
MS |
|
Primary Purpose(s) |
S |
|
EAP |
Y |
|
Year Completed |
1917 |
|
Year Modified |
0 |
|
Dam Height |
10 ft |
|
Max Storage (ac-ft) |
7 ac-ft |
|
Surface Area (acres) |
3 acres |
|
River Name |
TR-BIG CREEK |
|
Latitude |
42.9283 |
|
Longitude |
-75.3383 |
|
Regulatory Agency(ies) |
NYS DEC |
|
NID Number |
NY12268 |
|
Attachments |
|
