Progressive Solutions for a Historic Watershed

Transcription

1 Progressive Solutions for a Historic Watershed Presenters: Clifford A. Shrive, PE, BCEE Brad S. Clark, PE Adam C. Hoff, PE June 20, 2012

2 Progressive Solutions for a Historic Watershed Overview of Presentation Background Watershed Area Partnerships Where We re Headed

3 Progressive Solutions for a Historic Watershed Background Wet Weather Improvement Plan Project Groundwork Reduction of Combined Sewer Overflows Evaluation of CSO Control Techniques Potential for Sustainable Infrastructure

4 Progressive Solutions for a Historic Watershed CSO-030 Located near Exit 6 along I-75 Hurdles Separation Barrier at Interstate Located Within Existing Cemetery Opportunities CSO Reduction to Mill Creek Sustainable Solutions Revitalization of Wetland Area Positive Social and Environmental Impacts Regulator Improvements Slide 4

5 Interstate 75 Existing Wetlands Clifton Avenue Vine Street Hill Cemetery

6 Proposed Roadway Alignments Encroach on Existing CSO and Interceptor Access Points Annual CSO Discharge to Mill Creek ~55 MG Separation Barrier (I-75) Existing Sewer and Natural Drainage Path Constructed Through Cemetery

7 Progressive Solutions for a Historic Watershed CSO-030 Project Screening Conventional Gray Separation Stream Daylighting Downspout Disconnection CSO Storage Enhanced High Rate Treatment Stormwater Detention Low Impact Development Applications Pervious Pavement Green Roofs Rain Gardens and Bio-Retention Bioswales Slide 7

8 Progressive Solutions for a Historic Watershed CSO-030 Recommendations Separate Blair Basin Strategic Bio-Retention and Inline Storage Upsize I-75 Culvert Advantages Business Case Evaluation Ranking Implementation Time-Frame Replaces Portions of Aging Combined Sewer Allows Flexibility in Future Planning Slide 8

9 Progressive Solutions for a Historic Watershed CSO-012 Located near Exit 3 along I-75 Hurdles Separation Barriers at Interstate and Railyard Large Diameter Pipes Multiple Phases and Connections Fast-Paced Schedule Opportunities CSO Reduction to Mill Creek Sustainable Solutions Positive Social and Environmental Impacts

10 Cincinnati State Burnet Woods USEPA Camp Washington Recreation Center University of Cincinnati

11 I-75 Construction Includes Large Diameter Storm Sewer Crossing I-75 and Connecting to MLK Project MLK Widening Includes Separate Storm Sewer Trunk I-75: ODOT 1,700 ft of 12 ft diameter sewer MLK: DOTE 1,600 ft of 3 ft diameter sewer

12 Separation Barrier (I-75) Separation Barrier (Railroad Lines) Annual CSO Discharge to Mill Creek ~250 MG Combined sewer flooding problems Urban decline

13 Progressive Solutions for a Historic Watershed CSO-012 Phase A Conveyance to all for separation of 100 acres of combined sewer 3,000 lf Box Culvert (12 x12 ; 10 x8 ) 1,000 lf 54-in sewer pipe I-75 Drainage Initially inline storage with bioretention facilities; additional sustainable infrastructure Opens future separation opportunities upstream of CSO

14 Phase B Tunnel Connection to Mill Creek Phase C Additional Separation or Source Control to Meet Volume Reduction Goal Potential Area for Application of Green Infrastructure Phase A ODOT and DOTE Storm Sewers Drain to Infiltration Basin Temporarily

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16 Residential Bio-Retention Separated Facilities from Combined Wetland Stream Pond Modifications

17 Progressive Solutions for a Historic Watershed Partnerships MSD of Greater Cincinnati Ohio Department of Transportation Cincinnati Departments Transportation and Engineering Public Services Parks Water Works Stormwater Management Unit Vine Street Cemetery University of Cincinnati/Cincinnati State US Environmental Protection Agency (USEPA) CSX Railroad

18 Progressive Solutions for a Historic Watershed Where We re Headed CSO-030 Design of Regulator Completed Construction of Regulator Started Planning Phase Completed Business Case Evaluation Submitted CSO-012 Planning Phase Completed Preliminary Engineering Completed Preliminary Design, Phase A Started Phase A.1 incorporated into Phase A.2 Phase A.2 Submitted to ODOT Phase A.3 and Phase A.4 Started

19 Progressive Solutions for a Historic Watershed Questions and Answers

20 Progressive Solutions for a Historic Watershed Presenters: Clifford A. Shrive, PE, BCEE Brad S. Clark, PE Adam C. Hoff, PE June 20, 2012