GUILFORD RESERVOIR - MD00106-3083
Dam Name: GUILFORD RESERVOIR
State: MD
Downstream Hazard Potential: H
Incident Type: Non-Failure
Incident Date: 07/21/2016
Incident Driver: Manmade Action
Incident Mechanism 1: Accident or Misoperation
Incident Mechanism 2
Incident Mechanism 3
Incident IDMD00106-3083
Incident DescriptionDuring preconstruction activities contractor excavated long trench at downstream toe of dam. Soil heave from bottom of excavation created unstable ground conditions and cracking in dam embankment. Reservoir ordered drained.
Named Hydrologic Event
EAP Enacted (Y/N) due to IncidentYes
Fatalities (Number)
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $)
Response
Volume released at failure (ac-ft)
Additional Remarks or Updates
Owner TypeL
Dam TypeRE
Primary Purpose(s)S
EAPY
Dam Height35 ft
Max Storage (ac-ft)134.00
Surface Area (acres)7.00
Year Completed1893
NID NumberMD00106
River NameOFFSTREAM-STONEY RUN
Latitude39.345
Longitude-76.6167
Year Modified
2006
Regulatory Agency(ies)MD DAM SAFETY
Incident Time
Incident Duration
Incident Report Produced
Information SourcesMDE Dam Safety Program
