James Cooper Road Slide Phase II HP

From Sandgap KY, travel north ~800 feet on KY 2004 until reaching Upper Dry Fork Road. Turn right on Upper Dry Fork Road. Travel in a northeasterly direction ~2.7 miles until reaching J Kirby Road (aka Dick Hollow Road.) Turn left onto J Kirby Road and travel in a northerly direction, at ~500 feet, veer right at the fork, which is the beginning of James Cooper Road (aka Dick Hollow Road); continue traveling ~1.1 miles until reaching the slide. Coordinates at the site are as follows: 37°30'58.84"N 84° 3'8.78"W There is an existing slide below the home that has taken out the Wilson Road (currently closed to through traffic) and was threatening the residential structure. The Phase I project focused on protecting the home from damage and/or collapse. Two I-Beams (80 LF each) were installed under the houses deck for support. The beams are supported on steel pipes drilled into rock and filled with concrete. A subdrain was constructed from behind the home to a roadway to relieve some of the hydrostatic pressure and continuously discharges water. This Phase I has been completed which consisted of supporting the house with I-Beams and constructing a subdrain. The Phase II project has been designed. The project consists of constructing a I-Beam steel wall encased in concrete on 3 foot centers in front of the house, drilling into rock and installing casing where needed. The W8x40 Steel I-Beams will be encased in concrete. The I-Beam will extend 5 feet above the bench with guardrail lagging and rock backfill between the house and the steel I-Beam to give additional support to the house. The scarp line has extended under the deck, which is supported by the I-Beams. The unsuitable material will be excavated and backfilled with rock. After backfilling, a layer of filter fabric will be placed on top of the backfill and covered with soil material. A 3’W x 2’H reinforced concrete footer will be installed along the front of the house. It will be the property owners to construct the piers. The depth to rock was determined from the drilling on the left and right side of the house doing the Phase I project. Two 4 ft. x 4 ft. rock drains wrapped in fabric will be constructed from the rock floor (suspected bottom of the coal pit) to drain the water out of the backfilled to natural drains and relieve the hydrostatic pressure. The rock drain on the North side of the house will tie into the subdrain constructed during the Phase I project. These drains extend past the county road that is to be re-constructed. The road will be constructed with suitable material obtained within the slide area. The footprint of the road will be excavated below the existing ground line a minimum of 4 feet. If this material is suitable for road, construction it can be re-compacted and wrapped in high strength geo-grid. If unsuitable material is encountered below this level, it will be excavated and disposed of onsite as directed by the Engineer. The reconstructed roadway will be wrapped and overlapped with high strength geo grid every 4 feet of depth. All roadway fill will be compacted in 1 foot lifts All scarp lines will be regrade to a slope of 2H:1V or flatter and provide positive drainage. There are no plans to repair the slide below the reconstructed roadway. An 18" HDPE pipe will replace an existing pipe that is clogged and perhaps damaged; the new pipe will ensure long-term drainage from the project limits. Class II Backfill, allow with guardrail lagging and filter fabric is included to place behind the steel I-Beams to provide additional stability at the house seat level. Earthwork is setup to grade disturbed areas near the end of reclamation activates. Silt Barrier - Bales & Silt Fence is setup to prevent sediment from leave the project limits Revegetation is including for revegetating the residential areas as directed. Dense grade and roadway stone is setup to provide for repair in kind non-state maintained roadways used for access. No trees, 3" in diameter or greater (breast height) will be disturbed between April 1 and October 31st, except for in the slide and transition zone. Any permits deemed necessary will be obtained prior to reclamation activities

Division 31 -	Earthwork, Erosion and Sedimentation Controls.
Division 33 -	Utilities, Storm Drainage Utilities, Ponds and Reservoirs.