Скачать презентацию When should you fix a stream Let s Скачать презентацию When should you fix a stream Let s

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When should you fix a stream? ? Let’s look closer at this one When should you fix a stream? ? Let’s look closer at this one

Susquehanna River with Interstate 88 at top of slope Susquehanna River with Interstate 88 at top of slope

Mc. Kinstry Creek existing planform, three bends and 2 crossings over 540 ft of Mc. Kinstry Creek existing planform, three bends and 2 crossings over 540 ft of length. Only one good habitat pool. Note 300 ft long straight stretch.

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

Looking DS, Elton Creek, Freedom, NY. Floodplain on both sides has been filled, stream Looking DS, Elton Creek, Freedom, NY. Floodplain on both sides has been filled, stream straightened. At 30 ft wide no habitat pools, when stream is 20 ft wide 2 ft deep pools with 40 -50 trout per pool!! Photo by Maureen Mayer What should we do? ? ? (Elton Creek, Freedom, NY) Looking Downstream

What do we do here? ? (North Carolina) What do we do here? ? (North Carolina)

What about here? ? (North Carolina) What about here? ? (North Carolina)

What about this stream? ? (West Virginia) What about this stream? ? (West Virginia)

 • • • Straightened Same Stream (West Virginia) Incised Over - widened Very • • • Straightened Same Stream (West Virginia) Incised Over - widened Very little pool-riffle-pool Very little wood in stream or high quality aquatic habitat (cover, depth, etc) • Single row of ageing veg as riparian corridor

Same Stream (West Virginia) Lots of room in the valley Same Stream (West Virginia) Lots of room in the valley

Transform old channel into connected wetland cells Abandon channel, start fresh!! • Use dirt Transform old channel into connected wetland cells Abandon channel, start fresh!! • Use dirt from new channel to create wetland cells in old channel (maximize diversity) • Use some old veg for LWD in new channel • Plant all riparian areas (shade, wildlife, pollinators) • Maximize all stream functions New stream channel with all bells & whistles

Active headcut. Do which first, bank stabilization? Or grade stabilization? ? Active headcut. Do which first, bank stabilization? Or grade stabilization? ?

This is where the headcut has been This is where the headcut has been

Stream cutting into a tall unstable bank Stream cutting into a tall unstable bank

Bob’s Creek. Where to start? ? Bob’s Creek. Where to start? ?

House here What about this one? ? House here What about this one? ?

In stream restoration “you have to have that brain thing going on !! In stream restoration “you have to have that brain thing going on !!

QUESTIONS? ? QUESTIONS? ?