State of Connecticut Department of Transportation

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State of ConnecticutDepartment of Transportation
Stormwater Management Plan
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Status of Phase 1 and Phase 2

• Phase 1
• Phase 2
• Phase 1 vs. Phase 2
• Municipalitys Role
• Department of Environmental Protections Role

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COVERAGE

• SWMP will cover
• All of Departments highways, roadways and
  railways located within urbanized areas
• All interstates regardless of location
• 3732 miles of state maintained highways and roads
  (18 of total)

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COVERAGE continued

• State covers 5554 square miles, 161 square miles
  of inland water, and 5385 square miles of coastal
  water under
• 169 municipalities - regulated by the Department
  of Environmental Protection
• Old New England state - long history, little
  record of storm drainage

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Strategy to Implement

• Preparation of SWPP Plan - By Consultant
• Minimum Control Measures - Department defines
  appropriate BMPs, designates a person(s) and job
  title responsible for each BMP, defines a
  timeframe for implementation for each BMP,
  defines measurable goals for each BMP. - Prepared
  and implemented by consultant, Department,
  contractors and the public
• Cost to Prepare and Implement Program

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Cost to Implement Program

• Preparation of Stormwater Management Plan -
  450,000.00
• Preparation of Mapping - 1,800,000.00
• Update Mapping Annually - 450,000.00
• Annual Maintenance and Design Costs -
  9,000,000.00 - 10,000,000.00

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Illicit Discharge Detection and EliminationTable
3.1 Storm Sewer Map BMPMeasurable Goals and
Implementation Dates
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Table 3.2 Detection and Elimination Program
BMPMeasurable Goals and Implementation Dates
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Construction Site Runoff ControlTable 4.1
Requirements and Guidelines for Erosion and
Sediment Controls BMPMeasurable Goals and
Implementation Dates
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Pollution Prevention/Good Housekeeping

• Operation and Maintenance Program
• Employee Training Program
• Street Sweeping Program
• Catch Basin Maintenance Program
• Preventative Maintenance Program

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Uniqueness of Connecticuts SWMP

• Coverage - Extensive
• Mapping - 8 years to complete
• Illicit discharge testing - by district, by ADT,
  4 tests vs. 3 tests
• 15-inch outfall and greater
• Catchbasin rule, 15 pipe
• Catchbasin prior to municipality system into
  state system

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Design and Maintenance Issues

• Sediment basins in tidal zones
• Design 50 complete before drainage design
  started
• Best available technologies - 0.1 used because
  numbers are not available
• Maintenance of systems not funded by feds
• Reduction of sediment on roads equals more salt,
  less sand - more complaints of contaminated wells

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Design and Maintenance Issues continued

• Coordination between Design, Maintenance Offices
• Staffing
• Time Frame
• Record Keeping
• Consistency with Municipalities