GORHAM - NH00191-1820
Dam Name: GORHAM
State: NH
Downstream Hazard Potential: L
Incident Type: Non-Failure
Incident Date: 10/17/2013
Incident Driver: Deterioration or Poor Condition
Incident Mechanism 1: Spillway Chute Failure
Incident Mechanism 2
Incident Mechanism 3
Incident IDNH00191-1820
Incident DescriptionAppears structural members supporting upstream facing (timber crib design) in lower left section of spillway had given way resulting in a "V" shaped depression/void in the timber facing. Flow from this void exited through the downstream apron drains.
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident
Fatalities (Number)
Number of People Evacuated0
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded0
Other Infrastructure ImpactsNone
Economic Damages (in $)NONE
Response
Volume released at failure (ac-ft)
Additional Remarks or UpdatesStructural concerns found on upstream face of timber crib dam during dive inspection.
Owner TypeP
Dam TypeTCERRE
Primary Purpose(s)H
EAPNR
Dam Height24 ft
Max Storage (ac-ft)370.00
Surface Area (acres)45.00
Year Completed1904
NID NumberNH00191
River NameANDROSCOGGIN RIVER
Latitude44.4082
Longitude-71.1952
Year Modified
Regulatory Agency(ies)NH DEPARTMENT OF ENVIRONMENTAL SERVICES DAM BUREAU
Incident Time
Incident Duration
Incident Report Produced
Information Sources
