virginia department of emergency management coordinator’s briefing
DESCRIPTION
Virginia Department of Emergency Management Coordinator’s Briefing. Changes in State Dam Safety Regulations. Mark Slauter, CFM Virginia Department of Emergency Management. Primary Changes. Hazard classification scheme changed All permitted dams must prepare inundation maps - PowerPoint PPT PresentationTRANSCRIPT
Virginia Department of Virginia Department of Emergency ManagementEmergency Management
Coordinator’s BriefingCoordinator’s Briefing
Changes in State Dam Safety Changes in State Dam Safety RegulationsRegulations
Mark Slauter, CFM
Virginia Department of Emergency Management
Primary ChangesPrimary Changes
Hazard classification scheme changed All permitted dams must prepare
inundation maps All permitted dams must have either an
emergency action plan or preparedness plan
Exercises Impacts to local staff
Example of a Dam FailureExample of a Dam Failure
Teton Dam near Driggs Idaho
Several seepages identified on June 3, 1976.
Observed wetness on right abutment on June 4
Major leak noticed around 730 am on morning of June 5
Image of dam between 1030 and 1100 am June 5, 1976
Image of dam shortly after failure at about noon on June 5, 1976
Hazard DesignationsHazard Designations
Old categorization scheme of I, II, III & IV = hazard risk high to low
New classification is High (I), Significant (II) and Low (III & IV).
Dam Owner ResponsibilitiesDam Owner Responsibilities
Development, maintenance, and exercise of the EAP
Technical sections (such as inches of rainfall or depth of flow triggering levels of response & downstream break inundation mapping) will require the services of a registered professional engineer.
Owner Responsibilities Owner Responsibilities (Cont.)(Cont.)
Develop EAP in coordination with other groups (community, emergency management).
EAP must comply with state dam safety program requirements.
EAP must contain all components previously listed, be in writing, & agreed to by all parties.
State EAP FormState EAP Form
ExercisesExercises
Regulations for ExercisesRegulations for Exercises Altered the frequency for table top exercises
from once every 3 years to once every permit cycle (6 years).
Annual drills and table top exercises for multiple impounding structures may be performed in combination if the involved parties are the same.
A drill shall be conducted annually for each high or significant hazard impounding structure.
Regulations for ExercisesRegulations for Exercises Owners shall certify to the department
annually that a drill, a table-top exercise, or both has been completed and provide any revisions or updates to the EAP or a statement that no revisions or updates are needed.
Eliminated the requirement that a critique of the drill and table top exercise be provided to the Department.
Local ImpactsLocal Impacts More than 660 dams About 50% classified as high / significant
(includes federally permitted sites) 90 Counties / Cities have a permitted dam 78 high /significant (average of 4 each) Lowest number = 1 Highest number = 23 Locality affected by dams upstream
EOP Dam Safety AnnexEOP Dam Safety Annex Dam Owners
Develop and Maintain EAP for dams
Local Government Develop compatible procedures to warn and
evacuate the public in the event of dam failure.
Dam Safety Annex should include all dams within the jurisdiction
EOP Dam Safety AnnexEOP Dam Safety Annex Local Responsibilities
Develop compatible procedures to warn and evacuate the public in the event of dam failure;
Notify public of possible dam failure; Order immediate evacuation of residents in expected inundation
areas; Sound warning through use of sirens, horns, and vehicles with
loudspeakers, Emergency Alert System, telephone calls, and door-to-door notification to evacuate individuals immediately out of the area or to high ground in area for later rescue;
Debris Removal All agencies tasked in this plan implement recovery procedures; Review emergency procedures used and revise, if necessary, to
insure lessons learned are applied in future disasters; and Determine what mitigation measures, if any, should be initiated
EOP Dam Safety AnnexEOP Dam Safety Annex
Dam Safety Annex should: Include action items Be specific to the jurisdiction Include list of impoundments with appropriate
contact information Act as a quick reference