Master Stormwater Drainage Study

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  1.  Introduction 1 

    1. Basic Principles

    2. Problem Understanding

    3. Purpose of Study

    4. Report Organization

  2.  Background 

    1. General

    2. Supporting Documentation

  3.  Existing Conditions 

    1. Mapping of Existing Conditions

      1. Cayuga Creek Watershed

      2. Bergholz Creek Watershed

      3. Bull Creek Watershed

      4. Sawyer Creek West Watershed

      5. Sawyer Creek East Watershed

      6. Southern Drainage

      7. Black Creek Watershed

      8. Storm Culvert Mapping

      9. Floodplain Mapping

    2. Field Investigations and General Observations

      1. General Drainage Patterns Observed

    3. Watershed Modeling

      1. Engineering Methods

    4. Existing Hydrologic and Hydraulic Conditions

      1. Cayuga Creek (CAA)

      2. Bergholz Creek (BEA)

      3. Bull Creek (BUA)

      4. Sawyer Creek East (SEA) and West (SWA)

      5. Black Creek (BLA) and Southern Drainage (SD)

  4.  Study Findings and Conclusions 

    1. Cayuga Creek

      1. Findings

      2. Conclusions

    2. Bergholz Creek

      1. Findings

      2. Conclusions
         

                 3.   Bull Creek

      1. Findings

      2. Conclusions

    1. Sawyer Creek West

      1. Findings

      2. Conclusions

    2. Sawyer Creek East

      1. Findings

      2. Conclusions

    3. Black Creek and Southern Drainage

      1. Findings

      2. Conclusions

    4. Eagle Chase Subdivision

      1. Findings

      2. Conclusions

    5. Thornwoods and Walck Drive Area

      1. Findings

      2. Conclusions

    6. Willow Lake Outfall Assessment

      1. Findings

      2. Conclusions

    7. Moyer Road and Briars Development Assessment

      1. Findings

      2. Conclusions

  1.  Recommendations 

    1. Non-Structural Recommendations

    2. Maintenance Recommendations

      1. Ditch/Creek Maintenance Program

      2. Maintenance for Major and Minor Tributaries

    3. Capital Improvement Recommendations

      1. Culvert Replacement

      2. Specific Areas of Concern

    4. Additional Investigations and Studies

  2.  Bibliography and References 

 Exhibit A - Overall Watershed Map  
 Exhibit B - Comprehensive town Watershed Map
 Exhibit C - Culvert Map

 Exhibit D - Flood Map Overlay 
 

Figure Index

Figure 1  Bergholz Creek Hydraulic
Figure 2 Bull Creek Hydraulic 
Figure 3 Sawyer Creek East Tributary (SEB)
Figure 4 Sawyer Creek East Hydraulic
Figure 5 Sawyer Creek West Hydraulic 
Figure 6 Lemke Drive Preliminary Culvert Sizing Channel Cross Section
Figure 7 Errick Road Preliminary Culvert Sizing Channel Cross Section
Figure 8 Proposed Stormwater Management Zones
Figure 9 Cayuga Creek FEMA HEC-RAS Model (Appendix C)
Figure 10 Bergholz Creek FEMA HEC-RAS Model (Appendix C)
Figure 11 Bull Creek FEMA HEC-RAS Model (Appendix C)
Figure 12 Sawyer Creek West FEMA HEC-RAS Model (Appendix C)
Figure 13 Sawyer Creek East FEMA HEC-RAS Model (Appendix C)
Figure 14 Sawyer Creek East Tributary (SEB) HEC-RAS Model (Appendix C)

Table Index

Table 1 NRCS Curve Numbers by Land Cover and      Hydrologic Soil Group
 Table 2 Wheatfield Land Use and Cover Summary
Table 3 Cayuga Creek Flow Summary
Table 4 Bergholz Creek Flow Summary
Table 5 Bull Creek Flow Summary
Table 6 Sawyer Creek (East and West) Flow Summary
Table 7 Southern Drainage and Black Creek Flow Summary
Table 8 Recommended Culverts to be Replaced

 Appendix A Drawings
 
 CI-01 Walck Drive - Thornwood Estates Existing Conditions 
 CI-02 Sawyer Creek East Tributary Existing Conditions
 CI-03 Southern Drainage Existing Conditions
 CI-04 Sawyer Creek West Tributary Existing Conditions 
 CI-05 Eagle Chase Drive Existing Conditions
 CI-06 Timberlink Road Existing Conditions
 CI-07 Eagle Chase Drive Conceptual Drainage Improvements
 CI-08 Walck Drive - Thornwood Estates Conceptual Drainage Improvements 
 CI-09 Errick and Stieg Road Conceptual Drainage Improvement
 CI-10 Wilrose Lake Conceptual Drainage Improvements
 CI-11 Southern Drainage Conceptual Drainage Improvements

             Appendix B Drainage Computations
 
                   Attachment 1 Cayuga Creek
                   Attachment 2 Bull Creek
                   Attachment 3 Sawyer Creek East (SEA)
                   Attachment 4 Sawyer Creek West
                   Attachment 5 Bergholz Creek Tributary  
                   Attachment 6 Southern Drainage 
                   Attachment 7 Watershed Modle Schematic
 
              Appendix C Stream Models (See Figure Index Above)
                  
                  Figure 9 Cayuga Creek FEMA HEC-RAS Model
                  Figure 10 Bergholz Creek FEMA HEC-RAS Model    
                  Figure 11 Bull Creek FEMA HEC-RAS Model
                  Figure 12 Sawyer Creek West FEMA HEC RAS 
                  Figure 13 Sawyer Creek East FEMA HEC-RAS 
                  Figure 14 Sawyer Creek East Tributary (SEB)