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  1. Scientific Information: References

    https://agditches.osu.edu/management-options/scientific-information-references

    2013. Tri-state hydraulic geometry relationships for sizing two-stage agricultural ditches. Great Lakes ... Considerations for implementing two-stage channels. Great Lakes Regional Water Program. D’Ambrosio, J.D. Witter, ... sizing two-stage agricultural ditches. Great Lakes Regional Water Program. Witter, J.D., J.L. D’Ambrosio, ...

  2. Two-Stage Channels

    https://agditches.osu.edu/channel-designs/two-stage

    Using a Two-Stage Ditch      Summary The development of silt bars or benches within the channel ... a Two-Stage Channel (watch a video about Two-Stage channels). Construction of a two-stage channel. The same ... the goal a two-stage approach is not to return a channel system to its pre-development condition. The ...

  3. Ohio Two-Stage Channels

    https://agditches.osu.edu/case-studies/two-stage/ohio

    Klase Ditch was modified to a two-stage channel to increase conveyance capacity and reduce ... two-stage channel was constructed in 2005... Needles Creek was a relatively stable drainage channel that ... underwent intermittent maintenance prior to the two-stage construction. Needles Creek drains a watershed ...

  4. Resources & Publications

    https://agditches.osu.edu/Publications

    and multi-media materials about two-stage ditches and self-forming channels.   Fact Sheets Ditch ... Madison, WI, USA.   Selecting and Sizing Two-stage Ditches Ward, A.D., Witter, J.D., D’Ambrosio, J.L., ... Two-Stage Ditches. Great Lakes Regional Water Program. Madison, WI, USA.   Ward, A.D., G.E. Powell, A.D. ...

  5. Cost Estimator

    https://agditches.osu.edu/tools-and-models/cost/2sc2e

    Two-Stage Ditch Cost Estimator Tool Managing drainage ditches, especially when they are not ... drainage ditch compared to converting the ditch to a two-stage design. Two-Stage Ditch Cost Estimator Tool ...

  6. Two-Stage

    https://agditches.osu.edu/case-studies/two-stage

    Two-stage channels have been applied mostly throughout the Great Lakes states.  As of 2013, we ... estimate 60 to 100 projects utilizing the two-stage channel design approach have been implemented totalling ...

  7. Self-Forming Channels

    https://agditches.osu.edu/channel-designs/self-forming

    in the early stages of succession and diminishes to natural rates as the benches become higher. ... content than might be found in constructed benches in two-stage approach. A self-forming channel just ... be similar to that of a two-stage ditch. ...

  8. Sugar Creek (Allen County)

    https://agditches.osu.edu/sugar_creek

    to construction of the two-stage reach on Sugar Creek the drainage channel was a traditional ... the two-stage ditch design concept the Ottawa River Coalition organized project partners to implement ... the two-stage design. Other major project partners included the Allen County Soil and Water ...

  9. Shatto Ditch

    https://agditches.osu.edu/shatto_ditch

    project to introduce Indiana to the two-stage channel concept and to evaluate the impacts of installation ... signs of instability and 4 years prior to construction of the two-stage channel it was bottom dipped to ... constructed in to a two-stage channel design and a half mile upstream segment that was maintained as a control ...

  10. Needles Creek

    https://agditches.osu.edu/needles_creek

    stable drainage channel that underwent intermittent maintenance prior to the two-stage construction. ... fields have improved subsurface drainage. The reach of Needles Creek that was modified to a two-stage ... quality benefits. The two-stage channel was sized and constructed as a one-sided two-stage channel, with ...

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