ICE DAMAGE REDUCTION PROJECT- CHAUTAUQUA MOUTH (LAKE ERIE) WESTFIELD, NY Pix by Dave Spann

CHAUTAUQUA CREEK ICE DAMAGE REDUCTION PROJECT –Near its Lake Erie  Severe scour from ice and high flow velocities on the right descending bank had resulted in an overwidened section of stream.  Mid-channel sediment bars, mouth of Lake Erie clogged  No holding areas or habitat for steelhead  A heavily used public fishing section of the stream

NEED PLANS & SPECS Single Stone Bendway Weirs (pegged to bedrock) Key Trench Stone & Stacked Stone Wall Sloped Stone using “Big Flats” Flow

Construction June Looking a key in the sloped bank area Pix by derrick

DRILLING & PEGGING TOE STONES & SINGLE STONE BENDWAY WEIRS WITH METAL RODS TO BEDROCK

Construction June Looking 2 hoes jack hammering a footer trench through solid stone Pix by derrick

Construction June Looking DS curved key Pix by derrick

7 ft long, 1 5/8 inch diameter rebar rods for pegging stone to bedrock. Pix by Joe Galati

Dave Spann of Chautauqua County Soil & Water Conservation District with a 7 ft long, 1 5/8 inch diameter rebar. Dave did everything from writing the grant to providing extraordinary project management. On time and under budget!!!!

Construction June Looking DS. Drilling 2.5 inch holes to peg stone to bedrock. The 2.5 inch bit was the only one they had on hand… Pix by Joe Galati

Construction June Drilling holes for metal pinning rods Pix by Joe Galati

Construction June Drilling solid stone Pix by Joe Galati

Construction June A good hole in a footer stone. Pix by Joe Galati

Construction June Looking US. Metal pinning rods not cut off yet. Pix by derrick

Construction July Metal pin in drilled hole pinning stone to underlying bedrock Pix by Joe Galati

Construction June Looking US during placement of “big flat” stones on the backfill/filter stone. Pix by derrick

Construction June Dave Spann hydro-seeding Pix by Joe Galati

July Looking US. One month after plant installation. Pix by Joe Galati

May 17, Looking top bank willow poles & other plantings Pix by Joe Galati

THE STACKED STONE WALL BANK PROTECTION AREA (the upstream section of the project)

Construction June Looking US at the footer stones of the stacked stone wall. Pix by derrick

Construction June Looking the stacked stone wall. Pix by Joe Galati

Construction June From the US key looking DS. Robust key goes deep into the woods. Pix by Dave Spann

CONSTRUCTION COMPLETE

RockSteel Rod PlantsSoilSeeds $43,026.$5,655.$4,936.$3,458.$400. Heavy Equipment & Operators Hydraulic Hammer Rock Drilling Landscaping $120,154.$11,450.$7,700.$3,805. Total: $200,584. CONSTRUCTION COSTS Does not include admin, design, permitting, program management, construction oversight, or plant installation

Looking upstream at the SINGLE-STONE BENDWAY WEIRS

Looking US during low Single Stone Bendway Weirs (SSBW) at the sloped bank section of the project. Weirs spaced 50 ft apart. 3 YEARS AFTER CONSTRUCTION-CHAUTAUQUA CR.-DERRICK SSBW

Aug 29, high water- Looking US, note dead water near toe & thalweg location near arrow, all due to the Single Stone Bendway Weirs Photo by Dave Spann

Looking downstream at the SINGLE-STONE BENDWAY WEIRS HIGH WATER AUG 29, 2006

Aug 29, 2006-high water-looking DS Photo by Dave Spann Note rooster tail defining right edge of high velocity water

Aug 29, 2006-high water- Looking DS toward Lake Erie Photo by Dave Spann

A high water flow event. Mar 14, 2007

Mar 14, Looking DS. Three submerged Bendway Weirs can be located due to surface disturbance Pix by Joe Galati

Mar 14, Looking DS. Close-up of two submerged Bendway Weirs Pix by Joe Galati

Project effects downstream at the mouth into Lake Erie Feb 7, 2007

Looking DS on Feb 7, 2007 at ice mountains blocking mouth of Chautauqua Lake Erie {approx. 700 ft DS of DS end of project}. Pix from Joe Galati-NYSDEC

Looking DS at ice mountains blown out by concentrated flow from our project. This is approx. 700 ft DS of DS end of project. Mar 14, 2007 Pix from Joe Galati-NYSDEC

16 MONTHS AFTER CONSTRUCTION NOV 2007

Nov 8, Looking DS. Thalweg off the ends of the Bendway Weirs Pix by Joe Galati

THE FASTEST ICE OUT DAVE SPANN HAS EVER SEEN (and he has lived nearby all his life) JANUARY 2008

Jan 2008-Ice in place. Looking DS toward Lake Erie Photo by Dave Spann

Dave Spann reports:  Had some ice flush over the weekend. Nasty little storm 60 plus mph winds and 9 foot waves smashing the ice formations.  The photos are taken in less than a 15 hour time period. The ice impacted and flushed sometime overnight. I have never seen it leave in less that 48 hrs ever before under these conditions. Nice! You can see from the photos that the creek was able to pass the ice even with the lake entering the mouth of the creek, and raising the water elevation 3 plus feet, in addition to the energy of the surf pushing upstream.  Pretty good test!, Dave Spann

Photo by Dave Spann Looking DS toward Lake Erie. Jan 2008-Ice has flushed out.

More thoughts from Dave Spann :::  Historically, the ice did build on the banks prior to the project. It was forced up onto the flatter portions of the banks where it was heaved up by constant ice loading. Moreover, it was much less organized and irregular hindering ice movement.  I believe the project has greatly decreased the duration of the ice jamming, and therefore reduces overall ice loading. There is no doubt that the Bendways have greatly improved the efficiency of the ice movement.

Photo by Dave Spann Jan 2008-Ice has moved out. Looking DS. Nice thick ice sitting directly over the Bendway Weirs, note smooth streamside edge of ice.

3 YEARS AFTER PROJECT COMPLETION Photos by Derrick JUNE 17, 2009

Catskill sand cherry growing well in sun, but died when planted in shade. 3 YEARS AFTER CONSTRUCTION-CHAUTAUQUA CR.-DERRICK

Looking the project, all working well. All top bank willow was chewed down by beaver but regenerated as multi-stem shrubs. 3 YEARS AFTER CONSTRUCTION-CHAUTAUQUA CR.-DERRICK

Looking deposition US of the big Single Stone Bendway Weir. The entire project is stable. For the 3 year life of the project the ice management aspects has performed as planned. 3 YEARS AFTER CONSTRUCTION-CHAUTAUQUA CR.-DERRICK

Cleophus napping in the sun