Tracking Potential NFIP Tracking Potential NFIP ViolationsViolations Using Digital Using Digital

OrthophotosOrthophotos

Colleen A. HermansColleen A. HermansGIS AnalystGIS Analyst

Map Modernization Program, Map Modernization Program, Wisconsin Department of Natural Wisconsin Department of Natural

ResourcesResourcesCattle on farm house Cattle on farm house

porch, Cedar River, WIporch, Cedar River, WI

OverviewOverview Map Modernization (MapMod) Role Map Modernization (MapMod) Role

vs. Floodplain Managersvs. Floodplain Managers Process of finding potential violationsProcess of finding potential violations Problems and BenefitsProblems and Benefits ExamplesExamples Moving ForwardMoving Forward

Devil’s Lake, WI ’08 flood Devil’s Lake, WI ’08 flood eventevent

MapMod Role vs. Floodplain MapMod Role vs. Floodplain ManagersManagers

MapMod’s GIS and Engineer roles – MapMod’s GIS and Engineer roles – first phase of many stepsfirst phase of many steps

Using GIS as a tool to create more Using GIS as a tool to create more effective communication between effective communication between floodplain managers and GIS stafffloodplain managers and GIS staff

Carp moving inland, Janesville, Carp moving inland, Janesville, WIWI

List of potential violations with List of potential violations with symbologysymbology

Determining the DOPsDetermining the DOPs

Shapefiles UsedShapefiles Used

Old FIRMOld FIRM

Swipe ToolSwipe Tool

Attribute Table DataAttribute Table Data

Shapefile Name: nfip_violations_wiFeature Class: point

Map ItMap It Juneau Co. Juneau Co.

current current effective date effective date Sept 18, Sept 18, 1991.1991.

No DFIRM No DFIRM DOP > oldest DOP > oldest DOP vs. DOP vs. newestnewest

Map ItMap It

Rock Co. Rock Co. effective effective date Sept date Sept 19, 2008 19, 2008 (started (started 2003)2003)

DFIRM DOP DFIRM DOP 20052005

Map It with Map It with old FIRM and old FIRM and

Current Current DFIRMDFIRM

Cranberry Cranberry bog areabog area

Drudging Drudging and filling in and filling in both old and both old and current Zone current Zone A areasA areas

ProblemsProblems

DOP year unavailable > too recent or DOP year unavailable > too recent or too old (use aerial photo from map too old (use aerial photo from map library)library)

Poor resolution/ too leafyPoor resolution/ too leafy Time intensive now > plan in Time intensive now > plan in

advance when upcoming Community advance when upcoming Community Assistance Visits (CAVs) will happenAssistance Visits (CAVs) will happen

BenefitsBenefits

Allows for a review of a wide areaAllows for a review of a wide area Limits wasteful drive time during Limits wasteful drive time during

windshield surveys > better for the windshield surveys > better for the environment and budgetsenvironment and budgets

Access to off-limits areas and other remote Access to off-limits areas and other remote locationslocations

Clear description of the property very Clear description of the property very useful when dealing with local officialsuseful when dealing with local officials

Reduces time spent by Floodplain Reduces time spent by Floodplain ManagersManagers

ApplicatioApplicationn

Note: the four Note: the four potential potential building building violations in violations in both the old both the old FIRM and new FIRM and new DFIRMDFIRM

ApplicatioApplicationn

Note: the Note: the two two buildings are buildings are potential potential violations violations until the new until the new DFIRM maps DFIRM maps become become effectiveeffective

Index Index MapsMaps

Next StepsNext Steps Expand Expand

violation typesviolation types Look at LOMRs Look at LOMRs

and LOMAsand LOMAs Training Training

workshopsworkshops Help Help

communities communities with CACswith CACs

Switch focus Switch focus from regulation from regulation to planningto planning

Potential Violations = 509 and counting

Questions?Questions?

Colleen.Hermans@Wisconsin.gov

Apostle Island Sea Caves, Apostle Island Sea Caves, WIWI

(happy water photo)(happy water photo)