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ELTON CREEK, DS OF FREEDOM 7 BRIDGE, FREEDOM, NY.

A project to protect a farm road from bank erosion along Elton Creek, a high-quality trout stream, using a self-adjusting and self-filtering stone toe protection method.

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ELTON CREEK, DS OF FREEDOM 7 BRIDGE, FREEDOM, NY.

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  1. ELTON CREEK, DS OF FREEDOM 7 BRIDGE, FREEDOM, NY. • Bank erosion is threatening a farm road • NRCS –Environmental Quality Incentives Program {EQIP} cost share with landowner • Rural (farmland) • Bed material: gravel-cobble-sand, incised • Pool-riffle-pool regime, slope around 1% • Average width 20-30 ft, 10-14 ft tall banks • Partially spring fed. • High-quality trout stream, not stocked, natural reproduction of Rainbow, Brown, & upstream, Brook Trout

  2. ENTITIES INVOLVED • NRCS – Area Office, Batavia, NY • Cattaraugus County Soil & Water Conservation District, Ellicottville, NY • U S Army Corps of Engineers, Engineering Research & Development Center, Vicksburg, MS. • NRCS Cattaraugus County Office, Ellicottville, NY

  3. THE FIRST SITE VISIT. JANUARY 10, 2007PANNING US TO DS

  4. Looking DS at right eroding bank & exit conditions. PRE-PROJECT-Elton Creek DS of Freedom 7 Bridge-derrick-Jan 10, 2007

  5. THE SECOND SITE VISIT. MAY 17, 2007PANNING US TO DS

  6. Looking US at attack angle into eroding bank. PRE-PROJECT-Elton Creek DS of Freedom 7 Bridge-derrick-May 17, 2007

  7. Looking US at eroded bank. Bob is 6 ft 4” (for scale). PRE-PROJECT-Elton Creek DS of Freedom 7 Bridge-derrick-May 17, 2007

  8. Looking US at eroding bank. Truck on road we are protecting. PRE-PROJECT-Elton Creek DS of Freedom 7 Bridge-derrick-May 17, 2007

  9. Looking US at eroding bank & large block failure. PRE-PROJECT-Elton Creek DS of Freedom 7 Bridge-derrick-May 17, 2007

  10. Bank is 14 ft tall-toe is clay, gravel-cobble-sand above PRE-PROJECT-Elton Creek DS of Freedom 7 Bridge-derrick-May 17, 2007

  11. THE PLAN

  12. Project Limits THE PLAN – ELTON CREEK DS OF FREEDOM 7 BRIDGE FLOW Project Limits THE FARM ROAD WE ARE PROTECTING Drawing by Robert Shenk, Catt County Soil & Water

  13. THE PLAN – ELTON CREEK DS OF FREEDOM 7 BRIDGE THE PLAN FLOW Drawing by Robert Shenk, Catt County Soil & Water

  14. CONSTRUCTION OCT. 9-12, 2007CONSTRUCTION CONTRACT & STONE COSTS - APPROX. $16,000. TOTAL

  15. Looking US at the constructed bypass channel. We plugged the channel, put all flow in the bypass channel, & worked in the dry during construction. Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  16. METHODS EMPLOYED • 225 ft of self-adjusting & self-filtering Longitudinal Peaked Stone Toe Protection {LPSTP}. Mix of DOT heavy & medium graded stone. All protection is on right bank • Curved & vegetated keys on US & DS ends, 1 vegged tieback & key in middle of project • A stone check dam at DS end {not enuf stone for an Engineered Rocked Riffle} • Boil-Up Pool with curved kicker (Smile) • Five Single-Stone Bendway Weirs • Many transplanted Streamco Willow shrubs • Live Siltation,Pole Plantings, & Live Staking using Streamco & Black Willows, Red Osier & Silky Dogwoods • 6 rooted-stock Red Osier Dogwood

  17. WE WILL START DOWNSTREAM & WORK UPSTREAM, THEN DO THE GRADE CONTROL @ THE DS END LAST.

  18. LONGITUDINAL PEAKED STONE TOE PROTECTION {LPSTP}{Self-adjusting & self-filtering, Longitudinal Peaked Stone Toe Protection. Consists of a mix of DOT “heavy” & “medium” graded stone}

  19. THE PLAN – ELTON CREEK DS OF FREEDOM 7 BRIDGE THE LONGITUDINAL PEAKED STONE TOE PROTECTION {LPSTP} DS key FLOW Drawing by Robert Shenk, Catt County Soil & Water

  20. Elton Creek near Freedom 7 Bridge, Freedom, NY Farm road Typical bank cross-section Left bank Right bank

  21. Looking DS. Laying out the alignment for the LPSTP Construction-Elton Creek DS of Freedom 7-Steve Perschke-NRCS-Oct 07

  22. Elton Creek near Freedom 7 Bridge, Freedom, NY Then place clay dug from thalweg channel at toe of eroding bank First pre-dig a thalweg channel

  23. Looking DS. Laying out the DS key (red flags). Dug clay placed as substrate fill. Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  24. Elton Creek near Freedom 7 Bridge, Freedom, NY Install one-half of the Longitudinal Peaked Stone Toe Protection (LPSTP).

  25. Elton Creek near Freedom 7 Bridge, Freedom, NY Install adventitious rooting Willow Poles

  26. Elton Creek near Freedom 7 Bridge, Freedom, NY Install remainder of LPSTP. Side slopes will be at the angle of repose

  27. Elton Creek near Freedom 7 Bridge, Freedom, NY The stream will adjust to the LPSTP, & the LPSTP will self-adjust to armor the resulting scour hole Toe scour

  28. Elton Creek near Freedom 7 Bridge, Freedom, NY The LPSTP has self-adjusted

  29. Elton Creek near Freedom 7 Bridge, Freedom, NY Install gravel-cobble from stream

  30. Looking DS. Vegetation integrated thru LPSTP. Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  31. LIVE SILTATION{Willow branches about 1-2 inches in diameter, 6 to 8 ft long, 2/3 in ground, 1/3 out, intermixed with Silky & Red osier Dogwood that is 4 to 6 ft long}

  32. Looking US. Dug trench landward of LPSTP. Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  33. Looking US at installed Live Siltation (willow & dogwood). Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  34. Looking US at Single Stone Bendway Weirs & veg 8 MONTHS LATER-Elton Cr. DS of Freedom 7 Br.-derrick-JUNE 13, 2008

  35. TRANSPLANTING A LARGE CLUMP OF WILLOW Multi-stem (20 to 40 stems) bushes approx. 14 to 24 ft tall, transplanted as a single clump, with roots in trench directly behind the LPSTP. Tops of branches were trimmed & used as Live Poles (6 to 10 ft long).

  36. Looking down bank at a dug trench in backfilled bank. Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  37. Elton Creek near Freedom 7 Bridge, Freedom, NY Dig trenches to receive willow bushes

  38. Looking DS at LPSTP, backfilled bank, & dug trench. Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  39. Elton Creek near Freedom 7 Bridge, Freedom, NY Transplant large multi-stem Willow Bushes

  40. Looking DS. Transplanting willow bush in trench Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  41. Elton Creek near Freedom 7 Bridge, Freedom, NY Then trim long branches from bush & plant as Willow Poles

  42. Looking DS. Trim willow & plant poles in trench. Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  43. Elton Creek near Freedom 7 Bridge, Freedom, NY Water in & backfill

  44. Looking DS. Covering willow bush & poles with soil Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  45. Looking DS. Transplant complete. Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  46. THE PLAN – ELTON CREEK DS OF FREEDOM 7 BRIDGE WILLOW BUSH TRANSPLANTATION FLOW Drawing by Robert Shenk, Catt County Soil & Water

  47. Veg planted on a grid, Live Siltation in front & transplants Willow shrub transplants & willow poles Live Siltation Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

  48. 1 full growing season and 2 more growing months after completion. From point bar looking @ right bank. This is the 50 ft of Live Siltation & two large willow bush transplants that took 45 minutes to install. 19 MONTHS LATER-Elton Cr. DS of Freedom 7 Br.-Derrick-June. 9, 2009

  49. PLACING LPSTP IN THE US SECTION OF THE BEND{Self-adjusting & self-filtering, Longitudinal Peaked Stone Toe Protection {LPSTP}. Consists of a mix of DOT “heavy” & “medium” graded stone. }

  50. Looking US @ smooth curve in impact area. Under construction-Elton Creek DS of Freedom 7 Bridge-derrick-Oct 2007

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