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HomeMy WebLinkAbout20091063 Ver 1_More Info Received_20091009oq-1flLg>3 Lake Lure 401 Certification Narrative Lake Lure is a man-made lake located in western Rutherford County. The lake is owned by the town and was built in 1926 for the purposes of recreation and hydroelectric power generation. The lake covers approximately 814 acres with approximately 20 %2 miles of shoreline. Much of the shoreline has been previously impacted through construction of seawalls. Due to the large numbers of seawalls, many of the unprotected sections of shoreline are experiencing more severe erosion as a result of the reflected wave action from those seawalls. Additionally, many of the older seawalls have begun to show signs of wear as wave action degrades mortar joints and causes undermining of wall footings. Since 2006, the Town has adopted rules encouraging the use of rip rap as a shoreline stabilization technique. Where seawalls are a necessity, due to topography of the lake shore, the Town requires that rip rap be placed at the toe in order to reduce the reflective nature of the waves, thereby reducing the erosive forces as well as improving habitat for benthic macroinvertebrates,fish, and other aquatic organisms. Lake Lure is also subject to large sediment accumulations where major tributaries enter the lake. This causes the town to have to spend over $100,000 on an annual basis to perform dredging and sediment removal activities. In 1996, following the Flood of '96, a storm that brought between 11 and 13 inches in two hours (17 inches over the 24 hour period), dredging and cleanup costs were estimated at around $2.2 million. The majority of sediment problems are due to erosion and sedimentation issues further up in the 96 square mile Upper Broad River watershed and are not the direct result of activities around Lake Lure, making the town an unfortunate recipient. The Town of Lake Lure has a local delegated sediment and erosion control program that has been successful in limiting overland sedimentation issues around the lake itself, however many of the areas where erosion is occurring further up in the watershed are undeveloped and the problems stem from steep slopes, thin erosive soils, and high velocity flows. Sediment accumulations create serious navigational hazards for boaters and degrade the overall water quality of the lake. For this reason, the town works diligently to prevent hazard areas from "silting in" in order to maintain depth and safe boating access. Purpose of Project: Part 1: Shoreline Stabilization. Purpose is to stabilize shoreline areas using rip rap and other shoreline stabilization techniques in order to reduce shoreline erosion potential and to reduce damage to seawalls and other lake structures. Part 2: Dredging. Purpose is to perform maintenance dredging in four areas of the lake that have been historically dredged either by excavation or hydraulically, depending on proximity to dredge spoils pits. Methods will be further described below. The reason for dredging these areas is to reduce significant sediment accumulations that tend to create navigational hazards and limit intended use of the lake in those impacted areas. @iB L4 0 C T 9 2009 DENR - WATER QUALITY WETLANDS AND STQR.MWATER BRANCH Appropriate sediment and erosion control measures will be maintained at the treatment site. Where dredging is to be done by excavation, it will be done using long-reach excavators, operating either from the shore or on mud mats where it is necessary to go out onto the lake bottom itself. At no time shall hydraulic equipment be allowed in the water and all appropriate sediment and erosion control measures will be installed prior to commencement of construction. All excavated material will be loaded onto dump trucks and hauled to off-site disposal areas located on either Town of Lake Lure or Rumbling Bald Resort property. Excavation will begin as soon as the lake is drawn down to a suitable depth to allow dry out of the exposed lake bottom. Excavation will cease once the lake begins to come back up, regardless of whether the estimated amounts have been fully removed. Description of Vegetation: Vegetation above normal pool lake level and 50 feet landward is variable. In some cases buffer zones are intact with substantial mountain laurel and rhododendron species, pine, oak, tulip poplar, red maple, and sourwood. Eastern hemlock persists in some areas. In other areas of the lake, natural woody vegetation has been mostly removed and been replaced with ornamental landscaping and lawns. No vegetation will be removed for the majority of these projects due to the fact that the majority of work will be done from the waterward side as opposed to the landward side. Where new sea walls are to be constructed, there will be removal of vegetation, however no removal shall take place without a trout waiver from the NC Division of Land Resources, Land Quality Section. Property owners must provide the Town of Lake Lure with a copy of the waiver before they will be allowed to start work. Project Areas Table: Upland Property Owner Upland Property Address Description of Work Edwin Ford 261 Picnic Point Repair holes in existing 155' stone masonry sea wall and lace rira at toe of sea wall. Genevieve Beach 197 Sunset Cove Repair holes in existing 103' stone masonry seawall and lace rip rap at toe of sea wall. Mary Ann Dotson 383 Tryon Bay Circle Rip rap to be placed to stabilize shoreline along 50' of lake shore at mouth of Cane Creek. Nancy McNary 189 Sunset Cove Place rip rap at toe of existing seawall. Approximate length of shoreline is 100'. Alice Sebrell 134 Neighborly Drive Place rip rap at the toe of existing sea wall. Approximate length of shoreline is 50'. Tom Cox 174 Elkwood Drive Place rip rap at toe of existing sea wall and along unprotected shoreline. Approximate length of shoreline is 129'. Robert Ledford 176 Elkwood Drive Place rip rap at toe of existing seawall and along unprotected shoreline. Approximate length of shoreline is 442'. George Powell 134 Tanner Drive Repair holes in existing sea wall and place rip rap at toe of sea wall. Approximate length of shoreline is 127'. Charles Minch 129 Abbott Road Place rip rap at toe of existing sea wall. Approximate length of shoreline is 170'. Terry and Sharilyn Phillips 379 Lurewoods Manor Drive Place rip rap at toe of existing sea wall. Approximate length of shoreline is 103'. Luther Brewer 140 Curtis Drive Place rip rap at toe of existing sea wall. Approximate length of shoreline is 85'. John Hubbard 156 Yacht Island Drive Place rip rap at toe of existing sea wall. Approximate length of shoreline is 82' Faye Thompson 211 Sunset Cove Repair existing sea wall as needed and place rip rap at toe of sea wall. Approximate length of shoreline is 102'. Rudolph R. Steuer 204 Caddy Lane Inspect and repair existing sea wall and place rip rap at toe of sea wall. Approximate shoreline length is 164'. William Hutchison 113 Rock Point Road Place rip rap at toe of existing sea wall. Approximate shoreline length is 160'. Chris Braund 2189 Buffalo Shoals Road Place rip rap at toe of existing sea wall. Approximate shoreline length is 100'. Hank Steinberg 253 Hawthorne Drive Inspect and repair sea wall as needed. Rip rap to be placed at toe if needed. Approximate shoreline length is 110'. Thomas and Victoria Rogers 185 Blarney Road Inspect and repair sea wall as needed. Rip rap to be placed at toe if needed. Approximate shoreline length is 282'. Thomas and Victoria Rogers 146 McBrayer Court Inspect and repair sea wall as needed. Rip rap to be placed at toe if needed. Approximate shoreline length is 135' Betty Doggett 127 Edwards Point Road Place rip rap at toe of existing sea wall. Approximate shoreline length is 50'. Mike Saunders 1930 Memorial Highway Repair existing sea wall as needed and place rip rap at toe of sea wall. Approximate shoreline length is 100'. William Pressley 1138 Memorial Highway Place rip rap at toe of existing sea wall and along unprotected portion of shoreline. A roximate length of shoreline is 200'. Charles Colley 116 Pirates Cove Place rip rap at toe of existing sea wall. Approximate shoreline length is 68'. William McBrayer 191 Allen Drive Repair existing masonry sea wall as needed. Place rip rap at toe of sea wall. Approximate shoreline length is 93'. Janice Paris 102 Hummingbird Cove Road Repair existing sea wall as needed. Place rip rap at toe of sea wall. Approximate shoreline length is 363'. Frank W. Godwin III 212 Paradise Point Repair existing sea wall as needed. Place rip rap at toe of sea wall. Approximate shoreline length is 361'. Carol Bone 309 Tryon Bay Circle Repair existing sea wall as needed and place rip rap at toe of sea wall. Approximate shoreline length is 77'. Clay Richardson 406 Burnt Ridge Road Repair existing masonry sea wall as needed and place rip rap at toe of sea wall. Approximate shoreline length is 180'. Donald Goldehn and R.A. Porter 161 North Shore Drive Repair existing sea wall as needed and place rip rap at toe of seawall. Approximate shoreline length is 88'. Travis Oates 114 Harborside Drive Place rip rap at toe of existing sea wall. Approximate shoreline length is 377'. John Kilby 164 Neighborly Drive Repair existing sea wall as needed and place rip rap at toe of sea wall. Approximate shoreline length is 96'. Joel Nelson and Lois Seaton 144 Dockside Drive Place rip rap to stabilize 60' of unprotected shoreline. Frankie Pearson 480 Charlotte Drive Repair existing sea wall as needed and place rip rap at toe of sea wall. A roximate shoreline length is 163'. Richard and Lori Loftus Buffalo Shoals Road Place rip rap to stabilize 65' of unprotected shoreline. Mary Alice Corso 354 Paradise Point Repair existing sea wall as needed and place rip rap at toe of sea wall. Approximate length of shoreline is 89'. Esther Kirk 217 Sunset Cove Repair existing sea wall as needed and place rip rap at toe of sea wall. Approximate length of shoreline is 112'. Larry Lane 225 North Shore Drive Place rip rap at toe of existing sea wall. Approximate shoreline length is 68'. John Moore 115 Lost Cove Road Place rip rap at toe of existing sea wall. Approximate shoreline length is 170'. Hugh Vincent 207 Deerwood Drive Place rip rap at toe of existing sea wall. Ap roximate shoreline length is 110'. Harry Bagwell 141 Gentlewinds Lane Place rip rap at toe of existing sea wall. Approximate shoreline length is 292'. George R. Walsh 441 Holmes Road Stabilize unprotected shoreline with rip rap. Approximate shoreline length is 266'. Heyward Nettle 380 Burnt Ridge road Repair existing sea wall as needed. Place rip rap at toe of sea wall. Approximate shoreline length is 107'. Mary Joe Bertsch 254 Mark Twain Drive Construct new sea wall. Height shall be approximately 8', length shall be approximately 89'. Rip rap shall be placed at the toe of sea wall. Russell Pitts 184 Mark Twain Drive Place rip rap at toe of existing sea wall. Tommy Oakman 321 North Shore Drive Approximate shoreline length is 102' Repair existing masonry sea wall and place rip rap at toe of sea wall. Approximate shoreline length is 95'. Basil and Lynn Price 327 North Shore Drive Repair existing masonry sea wall and place rip rap at toe of sea wall. Approximate shoreline length is 82' Raymond Renshaw Fisher Court Drive . Repair a 10' section of existing sea wall that has collapsed and place rip rap at toe of sea wall. Approximate shoreline length is 216'. Chris Kearns 136 Tanner Drive Remove existing collapsing sea wall and replace with keystone wall. Place rip rap at toe of new sea wall. Approximate shoreline length is 185' Susan Holman 103 Lakeview Drive . Replace existing collapsing sea wall with new poured sea wall. Place rip rap at toe of new sea wall. Approximate shoreline len th is 148'. Lemuel Oates 216 Pierpoint Drive Where existing sea wall exists, replace with rip rap and enhance natural shoreline. Frank Strazar North Shore Drive A roximate shoreline length is 256' Stabilize unprotected shoreline with rip rap. Julieanne Thrift 304 Snug Harbor Circle Approximate shoreline length is 115'. Repair existing masonry seawall and place rip rap at toe of sea wall. Approximate Dean Melton 126 Edwards Point Road shoreline length is 154'. Repair existing masonry sea wall and place rip rap at toe of sea wall. Approximate Brett Munn 196 Yacht Island Road shoreline length is 22'. Inspect and repair existing sea wall as needed. Place rip rap at toe of sea wall. Nancy Wait Sheridan Lane Approximate shoreline length is 73'. Stabilize unprotected shoreline with rip rap. Town of Lake Lure Yacht Island Road Approximate shoreline length is 538'. Repair existing bulkheads on mainland side and island side of bridge and place rip rap at toe of bulkheads. Rip rap shall also be placed around bridge pilings. Approximate shoreline length is 125'. i inch = 2,000 feet Lake Lure Project Map River Channel Dredging Project iet yz 04w , . ' Spoils Area 1. 7 + tl` ;? '?• v? . 1 inch = 250 feet Lake Lure Beach Dredging Project 1 inch= 150 feet Gray Logs Cove Dredging Project 1 inch = 20 feet 1 inch= 125 feet Rumbling Bald Resort Dredging Project Shoreline Stabilization Project Examples: Collapsed section of sea wall on property of Raymond Raymer on Fisher Court Drive. Mr. Raymer intends to repair the section of wall and place rip rap at the toe to reduce wave action. Collapsed bulkhead at Yacht Island Bridge. Bulkhead on both sides of bridge have become subject to erosion. Both sides will be repaired and rip rap will be placed at the toe to reduce wave action. Notice the areas in the wall where the mortar has degraded due to wave action. This site is located at 185 Blarney Road. The property owners are Thomas and Vicki Rogers. The existing sea wall will be inspected and repaired as necessary and rip rap will be placed at the toe to reduce wave action. Failing sea wall will be removed entirely and replaced with rip rap stabilization. Upland property owner is George Walsh located at 441 Holmes Road. V Examples of Seawalls To Be Constructed This is an example of a keystone wall. This type of wall is usually a load-bearing wall. Geogrid is placed every few feet between stones and then backfilled. This type of wall, in most cases, requires a trout waiver from the state due to disturbance of the trout buffer. Rip rap is to be placed at the toe to reduce wave action. This is an example of the typical masonry wall. Wall is poured in place and then rock is used to cover the face. Rip rap is placed at the toe to reduce wave action. This type of wall usually does not require trout waivers as most of the work can be done from the water side.