SLIDE 1
- Flooding History
- Purpose and Goals
- Background
- Questions
Public Informational Meeting Preliminary Flood Insurance Rate Maps - - PowerPoint PPT Presentation
Public Informational Meeting Preliminary Flood Insurance Rate Maps - - PowerPoint PPT Presentation
Public Informational Meeting Preliminary Flood Insurance Rate Maps and Flood Storage District Mapping February 7, 2019 Overview Flooding History Purpose and Goals Background Questions Flooding History Flooding incidents
SLIDE 2
SLIDE 3
Flooding incidents since 1990
- Five Presidential Disaster Declarations
- 1990, 1993, 2001, 2004, 2008
- Six Other Flooding Incidents
- 1996, 1999 (2), 2000, 2010, 2012
Source: Winnebago County Hazard Mitigation Plan
Flooding History
SLIDE 4
Purpose and Goals
SLIDE 5
Purpose and Goals
- Reduce health and safety impacts due to street
and property flooding
– Street flooding impacts access for emergency services (Police and Fire) – Flooding impacts health care facilities – Flooding impacts to homes and businesses
SLIDE 6
Purpose and Goals
- Reduce health and safety impacts due to street
and property flooding.
Sawyer Creek at 9th Avenue (Collector) Washburn Street (Collector)
SLIDE 7
Purpose and Goals
- Reduce health and safety impacts due to street
and property flooding.
Sawyer Creek at Ascension NE WI Mercy Hospital Westfield Street at Evergreen Manor
SLIDE 8
Purpose and Goals
- Reduce health and safety impacts due to street
and property flooding.
Train Derailment Street & Yard Flooding
SLIDE 9
Background
Municipality Area (Acres) Area (%) City of Oshkosh 3,182 31.7 Town of Algoma 1,409 14.1 Town of Omro 954 9.5 Town of Nekimi 3,015 30.1 Town of Utica 1,466 14.6 Total 10,026 100%
15.7 Square Mile Watershed (10,000 acres)
SLIDE 10
Background
- Bridges – All but one of the 18 bridges were updated in
the model.
- Detention Basins – 29 basins totaling 640 ac-ft of
storage were added in the model.
- Dredging – Over 40,000 CY of sediment was removed
from the downstream 7,000 LF
- Preservation of existing flood storage – Over 293
ac-ft of storage being preserved through flood storage districts.
SLIDE 11
Background
- Who – City and County
- What – Completion and documentation of the results of
numerous projects involving bridges, detention, storage, and dredging
- Where – Throughout the Sawyer Creek Watershed
- When – Since 2001 to present
- Why – To lower the base flood elevation and reduce