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McKinstry Creek near Delevan, NY, 5-18-2006, flow left to right

On the road to the McKinstry Creek project, a complete stream realignment and constructed floodplain.

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McKinstry Creek near Delevan, NY, 5-18-2006, flow left to right

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  1. On the road to the McKinstry Creek project, a complete stream realignment and constructed floodplain

  2. McKinstry Creek, Delevan, NYThis was a complete stream and floodway realignment. Constructed June-July 2005. The stream had been straightened prior to 1939 (probably to accommodate the construction of Gooseneck Road)

  3. McKinstry Creek near Delevan, NY, 5-18-2006, flow left to right Existing planform (red line)

  4. In the 1939 aerial photos the stream had already been straightened & was parallel with the road. Where had it been?? How long was it?? Existing planform (red line)

  5. The stream needs to be longer and/or rougher but we are hemmed in by the road & the hill. Green line is toe of hill Gooseneck Road McKinstry Road We will have to increase the amplitude of the vertical sine wave (extreme verticality)!

  6. Attack Angles, Thalweg Profile, and cross-sections. Important Note: There is a sine wave for both stream planform, and the vertical thalweg profile!

  7. HOW STREAMS NATURALLY DISSIPATE ENERGY !! Purloined from Brad Humber, The Nature Conservancy Longitudinal Profile

  8. McKinstry Creek near Delevan, NY, 5-18-2006, flow left to right New channel planform (blue line)

  9. Looking US, US of the US bridge, (not in our project area) but typical pre-project conditions, straightened, wide, shallow runs, very few pools.

  10. Looking DS at the straightened stretch next to the road (with boilerplate wall), this old channel will be abandoned.

  11. Photo: Deb Freeman, June 29, 2005 Pre-project. The news is not good!

  12. Analysis started the year before construction, June 23, 2004

  13. LET’S STOP FOR A MOMENTThis is a simple “move the stream away from the road” exercise, but we will build as much habitat & energy dissipation into this project as possible!!

  14. Looking DS at a pool and the crest stones for the DS rocked riffle

  15. Let’s dig a pool (the Locked Log pool), McKinstry Creek, Delevan, NY Aquatic habitat techniques include Locked Logs, Bed Diversity Stones, Leaner Stones, & appropriate vegetation

  16. Looking DS, pilot channel cut for the realigned stream, bottom is at invert elevation. The right bank will be lowered for floodway.

  17. Looking DS, pre-dig & overdig those pools! All pools dug 3 ft deeper than invert of DS rocked riffle June 27, 2005-from derrick

  18. Adding Locked Logs June 28, 2005-from derrick

  19. Adding appropriate vegetation June 29, 2005-from derrick

  20. Add some stone & more Locked Logs June 29, 2005 – from Derrick

  21. Locked Logs & Bed Diversity Stones on McKinstry Creek Aug 29, 2005, less than 7 weeks after seeding, Riverbank Wildrye and Creeping Bentgrass mix

  22. Pix by derrick Looking DS @ the same pool, flowing almost at bankfull stage with Hurricane Katrina’s rain, Sept 1, 2005

  23. We need 9 Engineered Rocked Riffle Grade Control structures, so let’s build one.This one is at the DS end of the project.

  24. AN ENGINEERED ROCKED RIFFLE FLOW 4 15 to 20 1 1 Largest stones are placed at crest and on downstream face, upstream face is in compression (due to water flow)

  25. AN ENGINEERED ROCKED RIFFLE Newbury says the backwater should be 1/3 the total height of the structure to dissipate energy and pass sediment through the system. FLOW Largest stones are placed at crest and on downstream face. Upstream face is in compression (due to water flow).

  26. Looking DS, setting the crest stones June 28, 2005

  27. Looking DS In a small stream the two center stones are the most critical for low-flow fish passage

  28. Looking DS, setting the invert of the GC. Log used when the trackhoe pushes down on the stone Stuff in the way!!

  29. Moving a tree out of the way so that we can get the invert elevation shot

  30. Flow left to right

  31. Adding some “run” stones

  32. “Styling” members of the Catt County stream team chinking stones

  33. More “glide” gravel

  34. Done, June 28, 2005

  35. How it looks on March 28, 2006 after 3 bankfull flows & one really big flow

  36. The “Shadow Wall” Pool with Locked Logs and a large transplanted multi-trunk Alder for shade

  37. Channel dug to invert depth, 5 ft below surrounding land

  38. Not as easy to build as it looks

  39. “Shadow Wall” stones, A-axis placed perpendicular to flow

  40. Half-Dense Riprap with Shadow Wall Toe The toe stone is designed to cast a shadow into the deepest section of the channel Stone with Vertical face

  41. Half-Dense Riprap with Shadow Wall Toe Stone with Vertical face Shadow area

  42. Locked Limbs/Locked Logs

  43. Hand rolling a stone to lock down a Locked Limb

  44. All aquatic habitat features are designed to be submerged during base flow conditions

  45. Looking US at pre-dug pool with Shadow Wall & Locked Logs (everyone’s fav pool)

  46. Transplanting a giant multi-trunk alder ALDER BOB Photo: Deb Freeman

  47. THIS CONTRACTOR HAD NO STREAM CONSTRUCTION EXPERIENCE!!

  48. Katrina’s rains, Sept 1, 2005

  49. Transplanted alder Looking DS at pool & Alder during Katrina’s rains, Sept 1, 2005

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