Rough River Lake
SEAS performed a flowage easement survey around Rough River Lake in Breckinridge and Grayson Counties, Kentucky. The Base bid consisted of 29 maps containing 167 tracts with an approximate length of 51.65 miles. Option 1 consisted of 14 maps containing 53 tracts with an approximate length of 21.95 miles and Option 2 contained 5 maps containing 34 tracts with an approximate length of 11.87 miles.
A map for each individual flowage easement that indicates the deeded flowage easement lines and corners, U.S. tract number, elevation 534’ MSL contour, subdivision names, and normal summer pool was produced per the Scope of Work. In addition to the map, a geodatabase of the required features was produced and delivered per the Scope of Work. The survey effort consisted of the following tasks:
- Recover existing horizontal and vertical control around the lake.
- Establish primary horizontal and vertical control points for each Map or group of Maps.
- Establish pairs of horizontal and vertical control points at the beginning and ends of each traverse area and at intermediate areas along the traverse route as needed.
- Recover and survey the existing “Fee Line” monuments by running a conventional field traverse through the monuments beginning and ending each field traverse with the recently established pairs of horizontal and vertical control points.
SCHEDULE: The Notice To Proceed was given 24 May 2016 with a Base Bid delivery date of 31 December 2016, an Option 1 delivery date of 31 January 2017 and an Option 2 delivery date of 28 February 2017. To accomplish the task order in a timely manner, SEAS partnered with GRW INC. Some of the recorded deeds for the Flowage Easements were faint and hard to read. Because of this, some Maps required additional research at the County PVA office and Court House. Additional deeds and recorded plats were gathered to better situate the Flowage Easements in their geographic location.
GPS CONTROL AND CONVENTIONAL TRAVERSES: SEAS used Topcon GR3 and GR5 dual frequency GPS receivers to establish Primary and Traverse Control for each Map. SEAS used a Leica and Topcon Robotic Total Stations to survey the “Fee Line” monuments around the lake.
DATA PROCESSING: GPS data was processed using Topcon Magnet Tools. STAR*NET-STD Version 8 was used to perform a least squares adjustment on the horizontal traverses. Once the data was processed, the location of the “Fee Line” monumentation was input into CADD. The deeds were input into the drawing and the Flowage Easement was best fit to the existing “Fee Line” monumentation.