CHAPTER 85. CITY OF PARK RIDGE ANNEX

Transcription

1 CHAPTER 85. CITY OF PARK RIDGE ANNEX 85.1 HAZARD MITIGATION PLAN POINT OF CONTACT Primary Point of Contact Paul Lisowski, Emergency Preparedness Coord. 505 Butler Place Park Ridge, IL Telephone: Address: Alternate Point of Contact Jeff Sorensen, Deputy Fire Chief 505 Butler Place Park Ridge, IL Telephone: Address: 85.2 JURISDICTION PROFILE The following is a summary of key information about the jurisdiction and its history: Date of Incorporation: 1873 Current Population: 37,480 as of the 2010 Census Population Growth: The City of Park Ridge has experienced flat growth over its recent history with a -0.1 population decrease from 2000 to There is potential for some moderate growth in the near future, due to the construction of multi-family residential buildings. Location and Description: The City of Park Ridge is a north suburb of Chicago in Cook County located 16 miles from the Chicago Loop. Park Ridge is bordered by the City of Chicago on two sides and also located three miles from O Hare airport. Adjacent suburbs that border Park Ridge include: Des Plaines to the north and west, Norridge, and Rosemont to the south, and Niles to the east. It lies just north of the Kennedy Expressway (I-90) and just east of I-294 and the Des Plaines River. Brief History: The City was first called Pennyville and then Brickton due to the location of a quarry in the city; and finally Park Ridge in The city started to grow in the 1920s and the famous Pickwick Theatre was built in After World War II, the city grew further, aided by the development of O Hare Airport and Lutheran General Hospital in the 1950s. Climate: The climate of Park Ridge and the Chicago area is classified as humid continental, with all four seasons distinctly represented: wet springs; hot and humid summers; pleasant autumns; and cold winters. Annual precipitation is average, and reaches its lowest points in the months of January and February, and peaks in the months of May and June. Winter proves quite variable. Seasonal snowfall in the city has ranged from 9 90 inches. The daily average temperature in January at Midway Airport is 24.8 F ( 4.0 C), and temperatures often stay below freezing for several consecutive days or even weeks in January and February. Temperatures drop to or below 0 F ( 18 C) on 5.5 nights annually at Midway and 8.2 nights at O Hare. Spring in the Chicago area is perhaps the city s wettest and unpredictable season. Winter like conditions can persist well into April and even occasionally into May. Thunderstorms are especially prevalent in the spring time as the city s lakeside location makes it a center of conflicts between large volumes of warmer and colder air, 85-1

2 Cook County Multi-Jurisdictional Hazard Mitigation Plan; Volume 2: Planning Partner Annexes triggering many kinds of severe weather. Temperatures vary tremendously in the springtime; March is the month with the greatest span between the record highs and lows. On a typical summer day, humidity is usually moderately high and temperatures ordinarily reach anywhere between 78 and 92 F (26 and 33 C). The extreme heat that the Chicago area is capable of experiencing during the height of the summer season can persist into the autumn season. Temperatures have reached 100 degrees high and subzero lows below 18 C. Fall can bring heavy thunderstorms, many of which are capable of producing flooding. The average first accumulating snow occurs around Nov 19. Governing Body Format: The City of Park Ridge has a City Council with seven aldermen serving staggered four year terms. Each alderman is elected from one of the seven wards in the city. The City also has a mayor, and the day to day operations are run by a City Manager. This body of Government will assume the responsibility for the adoption and implementation of this plan. Park Ridge operates seven city departments including: Administrative Services, Community Preservation & Development, Finance, Fire, Police, Public Works, and Library Departments. Development Trends: Park Ridge is primarily a bedroom community, and has seen development as the economy has grown. In the 1990s the Uptown area was developed with retail and residential developments. Additionally, as smaller homes come down, larger single family homes are built. There is a slight increase of multi-family residential buildings that are being developed near the town center CAPABILITY ASSESSMENT The assessment of the jurisdiction s legal and regulatory capabilities is presented in Table The assessment of the jurisdiction s fiscal capabilities is presented in Table The assessment of the jurisdiction s administrative and technical capabilities is presented in Table Information on the community s National Flood Insurance Program (NFIP) compliance is presented in Table Classifications under various community mitigation programs are presented in Table

3 CITY OF PARK RIDGE ANNEX TABLE LEGAL AND REGULATORY CAPABILITY Local Authority Codes, Ordinances & Requirements State or Federal Prohibitions Other Jurisdictional Authority State Mandated Comments Building Code No No P.R. Code Ch. 15-7/21/03 Zonings No No P.R. Code Ch. 15-7/21/03 Subdivisions No No No P.R. Code Ch. 15-7/21/03 Stormwater Management No No State regulates industrial activity from Construction sites 1 acre or larger under section 402 CWA. P.R. Code Ch. 11-9/12/94 Post Disaster Recovery No No No P.R. Code Ch. 8 Real Estate Disclosure No No No (765 ILCS 77/) Residential Real Property Disclosure Act. Growth Management No No No P.R. Code Ch. 6-2/3/03 Site Plan Review No No No P.R. Code Ch. 15 7/21/03 Public Health and Safety No No No P.R. Code Ch. 5 Environmental Protection No No No P.R. Code Ch. 23 1/18/10 Planning Documents General or Comprehensive Plan No No No Uptown Plan, Is the plan equipped to provide linkage to this mitigation plan? No Floodplain or Basin Plan No No No P.R. Code Ch. 6 2/3/03 Stormwater Plan No No No P.R. Code Ch. 11 9/12/94 Capital Improvement Plan No No No What types of capital facilities does the plan address? Bldgs., Sewers, Land How often is the plan revised/updated? As needed Habitat Conservation Plan No No No No N/A Economic Development Plan No No P.R. Code Ch. 6 2/3/03 Shoreline Management Plan No No No No N/A Response/Recovery Planning Comprehensive Emergency Management Plan Threat and Hazard Identification and Risk Assessment No No No P.R. Code Ch. 8 No No No Cook County DHSEM Preparing THIRA Terrorism Plan No No No City EOP Post-Disaster Recovery Plan No No No Continuity of Operations Plan No No No Cook County DHSEM Public Health Plans No No No Cook County DPH 85-3

4 Cook County Multi-Jurisdictional Hazard Mitigation Plan; Volume 2: Planning Partner Annexes TABLE FISCAL CAPABILITY Financial Resources Community Development Block Grants Capital Improvements Project Funding Authority to Levy Taxes for Specific Purposes User Fees for Water, Sewer, Gas or Electric Service Incur Debt through General Obligation Bonds Incur Debt through Special Tax Bonds Incur Debt through Private Activity Bonds Withhold Public Expenditures in Hazard-Prone Areas State Sponsored Grant Programs Development Impact Fees for Homebuyers or Developers Accessible or Eligible to Use? No No Staff/Personnel Resources Planners or engineers with knowledge of land development and land management practices Engineers or professionals trained in building or infrastructure construction practices Planners or engineers with an understanding of natural hazards TABLE ADMINISTRATIVE AND TECHNICAL CAPABILITY Available? Department/Agency/Position Public Works/Park Ridge/City Engineer Public Works and Community Development Public Works/Park Ridge/City Engineer Staff with training in benefit/cost analysis Multiple people in multiple departments Surveyors Personnel skilled or trained in GIS applications Cook County GIS Consortium Scientist familiar with natural hazards in local area No No Emergency manager Part-time Emergency Preparedness Coordinator Grant writers Fire and Police 85-4

5 CITY OF PARK RIDGE ANNEX TABLE NATIONAL FLOOD INSURANCE PROGRAM COMPLIANCE What department is responsible for floodplain management in your jurisdiction? Who is your jurisdiction s floodplain administrator? (department/position) Are any certified floodplain managers on staff in your jurisdiction? What is the date of adoption of your flood damage prevention ordinance? 2008 When was the most recent Community Assistance Visit or Community Assistance Contact? Does your jurisdiction have any outstanding NFIP compliance violations that need to be addressed? If so, please state what they are. Do your flood hazard maps adequately address the flood risk within your jurisdiction? (If no, please state why) Does your floodplain management staff need any assistance or training to support its floodplain management program? If so, what type of assistance/training is needed? Does your jurisdiction participate in the Community Rating System (CRS)? If so, is your jurisdiction seeking to improve its CRS Classification? If not, is your jurisdiction interested in joining the CRS program? Public Works PW - Director No 02/23/2006 No No No and we are not interested TABLE COMMUNITY CLASSIFICATIONS Participating? Classification Date Classified Community Rating System No N/A N/A Building Code Effectiveness Grading Schedule No N/A N/A Public Protection (ISO) ISO-3 (Fire) July 2012 StormReady Gold (countywide) 2014 Tree City USA N/A JURISDICTION-SPECIFIC NATURAL HAZARD EVENT HISTORY Table 85-6 lists all past occurrences of natural hazards within the jurisdiction. Repetitive flood loss records are as follows: Number of FEMA-Identified Repetitive Loss Properties: 12 Number of FEMA-Identified Severe Repetitive Loss Properties: 0 Number of Repetitive Flood Loss/Severe Repetitive Loss Properties That Have Been Mitigated:

6 Cook County Multi-Jurisdictional Hazard Mitigation Plan; Volume 2: Planning Partner Annexes TABLE NATURAL HAZARD EVENTS Type of Event FEMA Disaster # (if applicable) Date Preliminary Damage Assessment Flood DR-4116 April 2013 Blizzard DR-1960 Feb 2011 Flood DR-1800 Sep 13, 2008 Flood DR-1729 Aug 20,2007 Flood DR Blizzard EM HAZARD RISK RANKING Table 85-7 presents the ranking of the hazards of concern. Hazard area extent and location maps are included at the end of this chapter. These maps are based on the best available data at the time of the preparation of this plan, and are considered to be adequate for planning purposes. TABLE HAZARD RISK RANKING Rank Hazard Type Risk Rating Score (Probability x Impact) 1 Severe Weather 54 2 Severe Winter Weather 54 3 Tornado 51 4 Flood 48 5 Earthquake 32 6 Drought 3 7 Dam Failure HAZARD MITIGATION ACTION PLAN AND EVALUATION OF RECOMMENDED ACTIONS Table 85-8 lists the actions that make up the jurisdiction s hazard mitigation plan. Table 85-9 identifies the priority for each action. Table summarizes the mitigation actions by hazard of concern and the six mitigation types. TABLE HAZARD MITIGATION ACTION PLAN MATRIX Applies to New or Existing Assets Hazards Mitigated Objectives Met Lead Agencies Estimated Cost Sources of Funding Timelinea 85-6

7 CITY OF PARK RIDGE ANNEX Applies to New or Existing Assets Hazards Mitigated TABLE HAZARD MITIGATION ACTION PLAN MATRIX Objectives Met Action P6.1 Increase existing sewer capacity. Existing Flood, Severe Weather Lead Agencies Estimated Cost 1-4, 7,9,12,13 Public Works $2.5 million, High Action P6.2 Regrade some roads to eliminate traffic issues. Sources of Funding Unknown Timelinea Long term Existing All 1-4, 7,9,12,13 Public Works High Unknown Long term Action P6.3 Harden existing schools for tornado protection. Existing All 1-8, 12, 13 Private Industry Action P6.4 Harden City Hall and Emergency Operations Center. High Unknown Long term Existing All 1-8, 12, 13 Public Works High Grants Long term Action P6.5 Where appropriate, support retrofitting, purchase, or relocation of structures in hazard-prone areas to prevent future structure damage. Give priority to properties with exposure to repetitive losses. Existing All 7, 13 Public Works $5 million, High Action P6.6 Continue to support the countywide actions identified in this plan. New and existing All All City of Park Ridge Action P6.7 Actively participate in the plan maintenance strategy identified in this plan. New and existing All 3, 4, 6 DHSEM, City of Park Ridge FEMA Hazard Mitigation Grants Long-term (depending on funding) Low General Fund Short- and long-term Low General Fund Short-term Action P6.8 Consider or maintain participation in incentive-based programs such as, Tree City and StormReady. New and existing All 3, 4, 5, 6, 7, 9, 10, 11, 13 City of Park Ridge Low General Fund Long-term Action P6.9 Maintain good standing under the National Flood Insurance Program by implementing programs that meet or exceed the minimum NFIP requirements. Such programs include enforcing an adopted flood damage prevention ordinance, participating in floodplain mapping updates, and providing public assistance and information on floodplain requirements and impacts. New and existing Flooding 4, 6, 9 City of Park Ridge Low General Fund Short-term and ongoing Action P6.10 Where feasible, implement a program to record high water marks following high-water events. New and existing Flooding, Severe Weather 3, 6, 9 City of Park Ridge Medium General Fund; FEMA Grant Funds (Public Assistance) Long-term 85-7

8 Cook County Multi-Jurisdictional Hazard Mitigation Plan; Volume 2: Planning Partner Annexes Applies to New or Existing Assets Hazards Mitigated TABLE HAZARD MITIGATION ACTION PLAN MATRIX Objectives Met Lead Agencies Estimated Cost Sources of Funding Timelinea Action P6.11 Integrate the hazard mitigation plan into other plans, programs, or resources that dictate land use or redevelopment. New and existing All 3, 4, 6, 10, 13 Park Ridge Building Department Action P6.12 Seek SAFER, or Assistance to Firefighters Grant funding for fire apparatus. New All 1,2,12,13 Fire Department Action P6.13 Mayfield Estates sewer installation. New Flooding, Severe Weather 1-4, 7, 9, 12, 13 Action P6.14 Northwest Park Area sewer replacement. Existing Flooding, Severe Weather 1-4, 7, 9, 12, 13 Action P6.15 Country Club Area sewer replacement. Existing Flooding, Severe Weather 1-4, 7, 9, 12, 13 Public Works Public Works Public Works Low General Fund Short-term $500,000 Grants Short term $3.5 Million High $16.6 Million High $100 Million High Unknown Unknown Unknown Long term Long term Long term a. Ongoing indicates continuation of an action that is already in place. Short-term indicates implementation within five years. Long-term indicates implementation after five years. 85-8

9 CITY OF PARK RIDGE ANNEX Action # # of Objectives Met Benefits Costs TABLE MITIGATION STRATEGY PRIORITY SCHEDULE Do Benefits Equal or Exceed Costs? Is Project Grant- Eligible? Can Project Be Funded Under Existing Programs/ Budgets? Prioritya 1 8 High High No Medium 2 8 Medium High No No Low 3 10 High High No Medium 4 10 Medium High No No Low 5 2 High High No Medium 6 13 Medium Low No High 7 3 Medium Low High 8 9 Medium Low No Medium 9 3 Medium Low No High 10 3 Medium Medium No Medium 11 5 Medium Low No High 12 4 High Medium No Medium 13 8 High High No Medium 14 8 High High No Medium 15 8 High High No Medium a. See Chapter 1 for explanation of priorities. 85-9

10 Cook County Multi-Jurisdictional Hazard Mitigation Plan; Volume 2: Planning Partner Annexes Hazard Type 1. Prevention TABLE ANALYSIS OF MITIGATION ACTIONS 2. Property Protection Action Addressing Hazard, by Mitigation Typea 3. Public 4. Natural Education and Resource Awareness Protection 5. Emergency Services 6. Structural Projects Dam Failure N/A N/A N/A N/A N/A N/A Drought 6, 7, 10 5, 12 5, , 12 N/A Earthquake 3, 4, 6, 7, 10 3, 4, 5 3, 4, 5, 6 3, 4 3, 4, 6 3, 4 Flood 6, 7, 8, 9, 10, 11 1, 2, 3, 4, 5, 8, 9 Severe Weather 6, 7, 8, 10, 11 1, 2, 3, 4, 5, 12 Severe Winter Weather 1, 2, 3, 4, 6, 7, 8, 9 6, 7, 8, 12 1, 2, 3, 4, 8, 12 1, 2, 3, 4, 8, 9 1, 2, 3, 4, 6, 8, 9 1, 2, 3, 4, 13, 14, 15 1, 2, 3, 4, 6, 8, 12 3, 4, 13, 14, 15 6, 7, 8, , 7, 8 8 6, 8 N/A Tornado 6, 7, 8, , 7, 8 N/A 6, 8 N/A a. See Chapter 1 for explanation of mitigation types FUTURE NEEDS TO BETTER UNDERSTAND RISK/ VULNERABILITY No needs have been identified at this time ADDITIONAL COMMENTS Park Ridge is a city located on the Des Plaines River that has a major problem with urban flooding issues. While only a tiny part of our city is located in FEMA s flood plain, we have multiple areas of town that are virtually inaccessible due to road flooding. Additionally, there are hundreds of residential properties that suffer flooding in their basements due to Park Ridge s antiquated sewer system that cannot handle large amounts of rain. Efforts to fix this problem, unfortunately, will require a significant amount of money and it is difficult to find a source for this funding

11 HAZUS-MH RISK ASSESSMENT RESULTS FOR PARK RIDGE

12 Cook County Hazard Mitigation Plan; Volume 2 Planning Partner Annexes PARK RIDGE EXISTING CONDITIONS 2010 Population... 37,480 Total Assessed Value of Structures and Contents... $8,343,781,198 Area in 100-Year Floodplain acres Area in 500-Year Floodplain acres Number of Critical Facilities HAZARD EXPOSURE IN PARK RIDGE % of Total Number Exposed Value Exposed to Hazard Assessed Value Population Buildings Structure Contents Total Exposed Dam Failure Buffalo Creek 0 0 $0 $0 $0 0.00% U. Salt Cr. #2 0 0 $0 $0 $0 0.00% Touhy 0 0 $0 $0 $0 0.00% U. Salt Cr. #3 0 0 $0 $0 $0 0.00% U. Salt Cr. #4 0 0 $0 $0 $0 0.00% Flood 100-Year 3 1 $10,913,850 $10,913,850 $21,827, % 500-Year $66,130,639 $38,522,245 $104,652, % Tornado 100-Year $683,140,747 $411,399,426 $1,094,540, % 500-Year $1,580,338,725 $1,048,956,042 $2,629,294, % ESTIMATED PROPERTY DAMAGE VALUES IN PARK RIDGE % of Total Estimated Damage Associated with Hazard Assessed Value Building Contents Total Damaged Dam Failure Buffalo Creek $0 $0 $0 0.00% U. Salt Cr. #2 $0 $0 $0 0.00% Touhy $0 $0 $0 0.00% U. Salt Cr. #3 $0 $0 $0 0.00% U. Salt Cr. #4 $0 $0 $0 0.00% Earthquake 1909 Historical Event $33,832,737 $6,922,140 $40,754, % Flood 10-Year $0 $0 $0 0.00% 100-Year $23,788 $47,575 $71, % 500-Year $9,404,544 $7,635,280 $17,039, % Tornado 100-Year $68,314,075 $41,139,943 $109,454, % 500-Year $230,729,454 $153,147,582 $383,877, %

13 HAZARD MAPPING FOR PARK RIDGE

14 12 45 DES PLAINES RIVER h «po Ñ ««Ñ c _ Ñ Ñ"O$ "O$ po kj Ñ"X h Ñ Ñ Ñ Ñ h «14 Airport Facility o h Bus Facility "O$ Ñ v «Ñ "O$ Dams Fire Station Facility «Hazardous Materials kj Ñ Highway Bridge «««"O$ kj «21 Light Rail Bridge 89:i Light Rail Facility "X "X Medical Care Facility Ñ Ñ K Military Ñ «!5 43 Oil Facility «c _ Police Station Facility Ñ Ñ Ñ po c Ñ _ Ñ Ñ Î Port Facility 45 "X c _ Ñ h po Potable Water Facility Rail Facility "X Railway Bridge 89:i kj School Facility "X 294 Other Facility kj h c _ Ñ "X c _ ««^ 12 kj Ñ"X Ñ «Ñ Ñ "X «"X 89:i h "X «Ñ "X 90 RAND E ALGONQUIN RD RD S DES PLAINES RIVER RD E TOUHY AVE WILLOW CREE K TRI-STATE TLWY NORTHWEST N NORTHWEST HWY TLWY BUSSE HWY N GREENWOOD AVE OAKTON ST W TOUHY AVE W TALCOTT RD DEVON AVE W DEVON AVE W HIGGINS RD W DEMPSTER ST S CUMBERLAND AVE KENNEDY EXPY HARLEM AVE N HARLEM AVE SHERMER RD W OAKTON ST N MILWAUKEE AVE W TALCOTT AVE WAUKEGAN RD CITY OF PARK RIDGE Critical Facililties Emergency Operations Center Base Map Data Sources: Cook County, U.S. Geological Survey Miles «h «h

15 CITY OF PARK RIDGE DES PLAINESRIVER TRI-STATE TLWY 14 «21 WAUKEGAN RD Illinois Historical 1909 Earthquake Modified Mercalli Intensity I (Not Felt) II-III (Weak) IV (Light) V (Moderate) VI (Strong) VII (Very Strong) VIII (Severe) IX (Violent) X+ (Extreme) 45 S DES PLAINES RIVER RD 294 BUSSE HWY N NORTHWEST HWY W TOUHY AVE W TALCOTT RD N HARLEM AVE «43 N MILWAUKEE AVE Event Date of May 26, Original magnitude of 5.0; increased magnitude for analysis of 6.0. Depth: 10 km. Epicenter Lat/Long: 41.6N 88.1W An Epicenter Map is derived from a database of historical earthquakes developed from three sources (Composite Earthquake Catalog, 2002, Earthquake Data Base, 2002, and Earthquake Seismicity Catalog, 1996). The database has been sorted to remove historical earthquakes with magnitudes less than 5.0. The Epicenter Map is based on a historical earthquake epicenter, selected from the database. Base Map Data Sources: Cook County, U.S. Geological Survey DEVON AVE 12 ^ WILLOW CREE K NORTHWEST TLWY W HIGGINS RD. « KENNEDY EXPY Miles

16 RAND RD «21 CITY OF PARK RIDGE DES PLAINESRIVER E ALGONQUIN RD TRI-STATE TLWY N NORTHWEST HWY N GREENWOOD AVE OAKTON ST W DEMPSTER ST 14 W OAKTON ST SHERMER RD WAUKEGAN RD National Earthquake Hazard Reduction Program (NEHRP) Soil Classification Site Class A - Hard Rock B - Rock C - Very Dense Soil, Soft Rock D - Stiff Soil E - Soft Soil F - Site-Specifc Evaluation Soil classification data provided by the Illinois State Geological Society. 45 E TOUHY AVE S DES PLAINES RIVER RD BUSSE HWY W TOUHY AVE S CUMBERLAND AVE N HARLEM AVE «43 N MILWAUKEE AVE The procedures outlined in the NEHRP provisions (Building Seismic Safety Council, 2004) and the 2003 International Building Codes (International Code Council, 2002) were followed to produce the soil site class maps. Central U.S. Earthquake Consortium (CUSEC) State Geologists used the entire column of soil material down to bedrock and did not include any bedrock in the calculation of the average shear wave velocity for the column, since it is the soil column and the difference in shear wave velocity of the soils in comparison to the bedrock which influences much of the amplification. Base Map Data Sources: Cook County, U.S. Geological Survey W TALCOTT RD DEVON AVE W DEVON AVE WILLOW CREEK W HIGGINS RD W TALCOTT AVE. ^ 190 KENNEDY EXPY « Miles

17 TLWY CITY OF PARK RIDGE DES PLAINES RIVER TRI-STATE 14 WAUKEGAN RD FEMA DFIRM Flood Hazard Areas Floodway 1 Percent Annual Flood Hazard Flood Depth 20 ft -1 ft BUSSE HWY «21 Flood hazard areas as depicted on FEMA Digital Flood Insurance Rate Maps (DFIRM). The 1 percent annual flood hazard is commonly referred to as the 100 year floodplain. S DES PLAINES RIVER RD N NORTHWEST HWY «43 N MILWAUKEE AVE 45 W TOUHY AVE W TALCOTT RD N HARLEM AVE Base Map Data Sources: Cook County, U.S. Geological Survey DEVON AVE 12 ^ WILLOWCRE EK NORTHWEST TLWY W HIGGINS RD. « KENNEDY EXPY Miles

18 12 45 RAND RD CITY OF PARK RIDGE DES PLAINESRIVER E ALGONQUIN RD TRI-STATE TLWY N NORTHWEST HWY N GREENWOOD AVE OAKTON ST 14 W DEMPSTER ST «21 HARLEM AVE SHERMER RD WAUKEGAN RD W OAKTON ST Liquefaction Susceptibility Susceptible Not Susceptible High Bedrock Moderate to High Peat Moderate Water Low to Moderate Ice Low Very Low to Low Very Low Liquefaction data provided by the Illinois State Geological Society. Liquefaction data based on the Youd and Perkins (1978) method. 45 S DES PLAINES RIVER RD E TOUHY AVE 294 BUSSE HWY W TOUHY AVE S CUMBERLAND AVE N MILWAUKEE AVE «43 A liquefaction susceptibility map provides an estimate of the likelihood that soil will liquefy as a result of earthquake shaking. This type of map depicts the relative susceptibility in a range that varies from very low to high. Areas underlain by bedrock or peat are mapped separately as these earth materials are not liquefiable, although peat deposits may be subject to permanent ground deformation caused by earthquake shaking. Base Map Data Sources: Cook County, U.S. Geological Survey «72 12 NORTHWEST TLWY W TALCOTT RD DEVON AVE W DEVON AVE N HARLEM AVE ^ WILLOW CREE K W HIGGINS RD KENNEDY EXPY W TALCOTT AVE Miles

19 12 45 RAND 294 CITY OF PARK RIDGE DES PLAINESRIVER E ALGONQUIN RD N GREENWOOD AVE 14 RD N NORTHWEST HWY W DEMPSTER ST HARLEM AVE SHERMER RD WAUKEGAN RD 100- and 500-Year Tornado Events 100-Year Modeled Tornado Event (F4) 500-Year Modeled Tornado Event (F5) OAKTON ST «21 W OAKTON ST 45 E TOUHY AVE S DES PLAINES RIVER RD BUSSE HWY W TOUHY AVE «43 N MILWAUKEE AVE The 100- and 500-year events have been modeled based on fifty-nine years of tornado data for Cook County. The wind speeds, widths, lengths, and direction for each event were developed using existing historical tornado data. The simulated storms and their corresponding losses within this jurisdiction were used to determine the 100- and 500-year economic loss event. N HARLEM AVE Base Map Data Sources: Cook County, U.S. Geological Survey W TALCOTT RD DEVON AVE W DEVON AVE 12 WILLOW CREE K 190 W HIGGINS RD S CUMBERLAND AVE « ^ Miles