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Drainage Channel Restoration Construction Project

Drainage Channel Restoration Construction Project. Great Lakes Protection Fund. Great Lakes Protection Fund. A.D. Ward, D. Mecklenburg , R. McCall, D.J. Mears V. Bouchard, P. Richards, B. Sohngen, and L.C. Brown. Great Lakes Protection Fund. Wood Co. Engineer’s Office.

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Drainage Channel Restoration Construction Project

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  1. Drainage Channel Restoration Construction Project Great Lakes Protection Fund Great Lakes Protection Fund A.D. Ward, D. Mecklenburg , R. McCall, D.J. Mears V. Bouchard, P. Richards, B. Sohngen, and L.C. Brown Great Lakes Protection Fund Wood Co. Engineer’s Office

  2. Drainage Intensity, North Central Region, USA

  3. Two-Stage Design Method for ditches being developed by Ward and Mecklenburg

  4. Width and depth of small main channel can be estimated from drainage area (this case based on data obtained in Ohio’s Portage River Watershed by Ward, Mecklenburg, others)

  5. Factors such as amount of maintenance, depth of ditch, bed material, depth to bed rock, and other factors influence ditch stability (data obtained by Ward, Mecklenburg, others)

  6. Portage River Basin in Northwest Ohio(study area)

  7. Sub-watersheds of Upper Portage River Basin

  8. Aerial photo showing project location (Mary E. Smith farm)and cross-sections along Fast Road ditch in Wood County, Ohio.

  9. Ohio County Ditch Law • Chapters 6131, 6133, 6135, 6137 of the Ohio Revised Code • Chapter 6133 specifically addresses Joint County Ditches • ORC provides for review, feasibility, design, construction, assessments, and maintenance

  10. Typical Design/Proposed Cross Sections • Original elevations within ditch • Excavated spoils • redNew elevations within ditch • yellow New cross-sectional elevation • (2-stage design)

  11. Cross-section of Station 69+00

  12. Sequential development at station 69+00 May 2002 Before construction looking upstream Before construction looking downstream After construction looking upstream After construction looking downstream

  13. Excavator forming slope of bank of new ditch channel

  14. White pipe shows where bench meets toe of bank slope .

  15. Reconstructed Benches Existing Vegetation After Reseeding

  16. Process, engineering costs Advertisement, mailings, materials, construction staking, inspection, engineering design, contingencies, and initial maintenance fund $24,865 Construction costs Excavation, tree and debris removal, rock work, subsurface drain outlet replacement and splash apron, seeding, fertilizer, etc. $13, 606 Estimated Project Costs SummaryMary E. Smith, Joint County Ditch ImprovementProject No. 2458

  17. Project Summary • Total project cost = $38,471 • % Process and Engineering = 65% • % Construction = 35% • Acres benefiting = 2323 ac • Appraised benefits = $299,473 • B/C = 7.78 • For ORC Ditch Petition Projects, benefits must exceed costs

  18. Design Method and Future Work • Study of other Ohio watersheds being conducted (engineering, hydrology, ecology, economics, etc.) • Design process being refined by Ward and Mecklenburg, others • Other demonstration sites being developed • New, multi-state project funded by USDA and EPA initiated in 2003 (Ohio, Minnesota and Illinois)

  19. Project Collaboration/ Sponsored Funding • The Ohio State University: Departments of Food, Agricultural, and Biological Engineering; School of Natural Resources; and Agricultural, Environmental and Developmental Economics • Ohio Department of Natural Resources, Division of Soil and Water Conservation • Heidelberg College, Water Quality Laboratory • University of Findlay • Wood County Engineer’s Office • Ohio State University Extension, Ohio Agricultural Research and Development Center, Soil and Water Conservation Districts • Great Lakes Protection Fund

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