RFB-144-24 EEC-AML-DENVER BAKER SLIDE-BIL
RFB-144-24 EEC-AML-DENVER BAKER SLIDE-BIL
Estimated Length of Project:
(Substantial Completion) + 180 Calendar Days (Final Completion)
Project Description:
This project consists of a slide around Mr. Baker’s house at 91 School House Hill Road in Letcher, County. Mr. Baker’s house is in danger of sliding from its foundation and both the house and slide threatens residences below his house and to Highland Branch Road.
This slide is located in Letcher County. To access the site from Whitesburg take US 119 from the junction of Ky 15 & Ky15X in a northerly direction 5.63 miles to the junction of Ky 805. Turn left on Ky 805 and travel 4.701 miles to Highland Branch. Turn left onto Highland Branch and turn right behind the first house (approximately 50 feet) then travel approximately 650 feet to Mr. Baker’s house. The coordinates to the slide area are 37°11’03”N, 82°41’15”W.
The offsite waste area is located on a previously disturbed enhancement project mined area. To access it from the site turn left from Highland Branch Road onto Ky 805, drove approximately 0.567 miles to Ramey Fork Road, turn right on Ramey Fork Road travel 0.37 miles to access road on left, travel access road 0.1 miles to waste area. The coordinates are 37.1726° N -82.6786° W. No trees 3” diameter or more at breast height will be disturbed, no cave-like structures will be closed, and no cliff-lines will be disturbed. There is only invasive species like Autumn Olive on this site.
The primary slide abatement planned consists of a concrete gravity wall behind the residence to prevent further damage from embankment movement (Wall A), a concrete gravity wall below the residence to prevent more slide material from entering Bear Branch (Wall C), (stream will be reestablished to pre-flood condition) and a rail steel and cribbing wall (Wall B) in front of the residence to protect the house from movement. Filter fabric and #2 stone backfill will be placed behind all walls.
Mobilization is setup to provide for construction equipment to be delivered to the site.
Utility Relocation/Replacement is set up in case any utility becomes impacted by the project.
Traffic control will be by flagger to allow for equipment and material delivery. No long term closure of any road is anticipated.
Structure Removal is setup to address the removal of fencing and abandoned, collapsed house to facilitate access to the location.
Site prep is set up to place erosion control and remove any foliage for construction.
Concrete, reinforcing steel, railroad steel, guardrail lagging, filter fabric and Class 2 stone backfill are setup to complete the 3 proposed walls.
A hoe ram and excavator bid item is set up to address any areas where rock or soil needs to be removed to facilitate access for the placement of the walls.
Earthwork work bid item is included to excavate for the placement of the walls. Since the waste area may be used for several projects the earthwork is set up as lump sum. A load count will be performed to verify quantities.
Subdrain quantities are included to extend drains from behind wall A & B to a logical termini.
Residential seeding is included for all revegetation efforts within the site.
Roadway stone and bituminous repair is included to provide for access during normal reclamation and to repair paved county road.
Rock silt checks are included to prevent loose material from leaving the site.
Chain-link fence is included to provide fall protection from walls A, B & C.
Any permits will be obtained prior to construction. No trees (equal to or greater than 5-inch breast height) will be disturbed outside of the winter clearing season (October 15 – March 31th), with the exception of those in the slide and transition areas.
Project Location: Letcher County