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Route 248 Chenunda Creek Protection Project - Hands-On Workshop

Explore the successful road protection project implemented on Route 248 at Chenunda Creek, showcasing fluvial geomorphology analysis, hydraulic engineering, and construction oversight. Witness the transformation and stabilization of the streambed through innovative methods and vegetation. Experience the before-and-after journey captured in captivating photos.

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Route 248 Chenunda Creek Protection Project - Hands-On Workshop

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  1. NYS-DOT REGION 6ROAD PROTECTION FOR ROUTE 248CHENUNDA CREEK,SOUTH OF WELLSVILLE, NY.CONSTRUCTED AS A HANDS-ON WORKSHOP SEPTEMBER 2006

  2. Pix by Derrick

  3. POC: Sandra Rapp, New York State DOT work 607-324- 8527 srapp@dot.state.ny.us RRD/Derrick Tasks: * Performed a fluvial geomorphology analysis * Developed alternative designs, developed the final design * Reviewed Plans & Specs, many discussions with DOT hydraulic engineers!! * Provided construction oversight & taught a hands-on workshop to 88 of NYS DOT’s finest

  4. Stream Project Functions: Fully functioning both hydraulically & environmentally. Multiple protection redundancy. LPSTP provides direct armor protection. Bendway Weirs Locked Logs, & J-Hook move scour & thalweg away from attacked bank, with velocities reduced on outer bank. Vegetation roughness reduces near-bank flow velocities & provides a functioning riparian corridor. Roots strengthen bank & bind soil. Grade Control structure stops upstream headcut migration.

  5. Planview-Looking US at Reach 1 FROM DAN SABOL, NYS-DOT

  6. Pre-project conditions

  7. Chenunda Creek @ Rt. 248. Pre-project condition Mar 22, 2006. Looking US at the eroding bend. Pix from Joe Galati

  8. Chenunda Creek @ Rt. 248. Pre-project conditions 7/25/2006. Looking DS at the eroding left bank Pix by Derrick

  9. The Upstream Key

  10. Construction 9/19/2006. Looking US. Hoe placing big stone (DOT heavy) in US keyway Pix by Derrick

  11. Construction 9/20/2006. Looking DS at angle of key to stream flow Pix by Derrick Flow Key angle

  12. STREAM BED & BANK STABILIZATION METHODS USED • Choked & vegetated LPSTP with vegetated keys, & curved US & DS keys • J-Hook Vane • Short Bendway Weirs • Pre-dug & Over-dug pool with Locked Logs and Instant Shade • Joint Plantings, Live Siltation, Pole Plantings, Slit Trench Plantings, Instant Shade, RPM Trees & Shrubs • Hydraulic Cover Stones • Traffic Control Stones (Upstream) • Thalweg Control Stones • Engineered Rocked Riffle Grade Control Structure (all stones in compression) with an integrated fish ladder on the downstream face

  13. Construction 9/20/2006. A dump truck load level full of Sandbar & Streamco Willow, & Ruby Redosier dogwood, (1,500 total) from the NRCS Plant Material Center, Big Flats, NY. Now that is a truckload!!! Pix by Derrick

  14. Construction 9/21/2006. Looking US at trench stone & bundled willows Pix by Derrick

  15. Short Bendway Weirs spaced on 50 ft intervals

  16. Construction 9/21/2006. Looking US @ toe-down stone toe & short Bendway Weir (2 people standing on Weir) Pix by Sandra Rapp

  17. Construction 9/20/2006. Looking US @ short Bendway Weir & pre-dug thalweg Pix by Martin Vandergrinten NRCS Plant Material Center

  18. Mid-Project Soil-Choked Stone Key with Vegetation

  19. Construction 9/19/2006. Digging a key into bank. Some willow poles in place Pix by Derrick

  20. Construction 9/19/2006. Looking at key Pix by Derrick

  21. Construction 9/21/2006. Workshop participants adding more veg to soil-choked key Pix by Derrick

  22. Construction 9/21/2006. Looking DS, digging the J-Hook Vane pool Pix by Derrick

  23. Construction 9/2006. Looking US at Locked Logs in J-Hook pool. Pix by Martin Vandergrinten NRCS Plant Material Center

  24. Construction 9/2006. Looking US at Locked Logs & Instant Shade Pix by Martin Vandergrinten NRCS Plant Material Center

  25. Construction 9/21/2006. The Root Production Method (RPM) Plants Pix by Derrick

  26. Post Construction 9/30/2006. Looking US. All plants, including the RPM plants in place Pix by Joe Galati-NYS DEC

  27. THE PROJECT IS COMPLETE, LET’S ROLL A LITTLE WATER THROUGH IT

  28. HIGH FLOW TWO MONTHS AFTER CONSTRUCTIONPhotos by Sandra Rapp, NYS-DOT REGION 6 NOVEMBER 19, 2006

  29. High water 11/19/2006. Looking DS at project bend, note thalweg in center of the channel Pix by Sandra Rapp US key here

  30. WINTER WONDERLAND FOUR MONTHS AFTER CONSTRUCTIONJANUARY 9, 2007

  31. Post Construction 1/9/2007. Looking US at project bend. Note calm water near bank Pix by Derrick

  32. . LOW LOW LOW FLOW 13 MONTHS AFTER CONSTRUCTIONPhotos by Dave Derrick OCTOBER 15, 2007

  33. 13 Months LATER-low flow. Veg in key is robust. Pix by Derrick 10/15/2007

  34. 13 Months LATER-low flow. Looking DS, upper bank veg is robust. Pix by Derrick 10/15/2007

  35. BIG THAW PLUS RAIN = HIGH STAGES Feb 6, 2008

  36. Looking DS @ project bend, flow in diversion channel to right Pix by Earl Flint DOT - 2/6/2008

  37. Looking DS @ into project bend Pix by Nancy Root - 2/6/2008

  38. Looking US. Flow over J-Hook near tip of arrow Pix by Nancy Root - 2/6/2008

  39. Looking US @ project bend. Everything looks in order. Pix by Nancy Root - 2/6/2008

  40. Looking US @ DS end of project bend. Good transition into DS bend Pix by Earl Flint DOT - 2/6/2008

  41. 22 MONTHS AFTER CONSTRUCTIONPhotos by Joe Galati NYSDEC JULY 10, 2008

  42. Looking US @ the US section of the project & the TCS section of the project 22 MONTHS AFTERCONSTRUCTION-CHENUNDA CR.-PIX BY JOE GALATI 7-10-2008

  43. Looking US @ a well vegetated stable bank 22 months after installation 22 MONTHS AFTERCONSTRUCTION-CHENUNDA CR.-PIX BY JOE GALATI 7-10-2008

  44. Looking US @ J-hook, veg growth & stable bank 22 months after installation 22 MONTHS AFTERCONSTRUCTION-CHENUNDA CR.-PIX BY JOE GALATI 7-10-2008

  45. Looking US @ veg & stable bank 22 months after installation. 22 MONTHS AFTERCONSTRUCTION-CHENUNDA CR.-PIX BY JOE GALATI 7-10-2008

  46. From the DS end of the project looking US 22 months after installation 22 MONTHS AFTERCONSTRUCTION-CHENUNDA CR.-PIX BY JOE GALATI 7-10-2008

  47. YEARS AFTER CONSTRUCTIONPhotos by Joe Galati NYS-DEC (retired)AUGUST 25, 2010

  48. 4 YEARS LATER-Looking DS into the upper end of the bend. 4 YEARS LATER-CHENUNDA CR.-PIX BY JOE GALATI 8-25-2010

  49. 4 YEARS LATER-Looking @ “J” section of the J-Hook. 4 YEARS LATER-CHENUNDA CR.-PIX BY JOE GALATI 8-25-2010

  50. 4 YEARS LATER-Looking US @ the J-Hook & DS pool. 4 YEARS LATER-CHENUNDA CR.-PIX BY JOE GALATI 8-25-2010

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