Portal 31 Drainage High Priority AML Reclamation

The Portal 31 Drainage High Priority AML Reclamation Project, approximately 7.0 acres total, consists of the removal of slide material that overtopped an existing manway entrance and direct drainage away from KY 160 to a nearby drain, near the community of Lynch, KY. The project site is located in the Benham Quadrangle at 36° 57’ 56" N, 82° 55’ 4" W. AML proposes to install 390 LF of 24" HDPE to direct water leaving an existing mine opening away from KY 160 and toward a small drain that outlets into Looney Creek. Also, next to the Portal 31 Exhibition Mine there is slump above the Dispatch building. AML proposes to construct a 50 LF of 14’ high reinforced concrete wall. During the excavation for the concrete wall, slide material covering the manway will be removed. Waste material will be transported to an off-site waste area located at 36° 57’ 56.6” N, 82° 55’ 19.5” W. The waste area is across KY 160 from the Portal 31 Exhibition Mine. The waste area is the location of logging work. The project site has previously been disturbed by landslide movement, coal mining operations, house seat development, utility installation, road construction, and/or landowner activities. These disturbances consist of significant upheaval, mixing, and removal of earthen material from deep excavation, grading, sub-surface drilling, fill material placement, and erosion. There should be no undisturbed earthen material to a depth of several feet at the areas slated for significant project-related construction activities. Construction disturbances will be kept to a minimum with a stringently formulated sediment and erosion control program. Prior to beginning any major earth disturbance, all silt control measures will be installed. These include silt traps and silt barriers (bales & silt fence). No trees greater than 3" diameter at breast height will be cut outside of the unstable area. All disturbed areas will be promptly revegetated at the end of construction using lime, fertilizer, residential or wildlife seed, and mulch, as necessary. Standard measures will be used for dust control and work hours will occur during AML’s standard time frame of 7 am to 7 pm Monday-Friday with shorter hours for "critical" work items. Access to the project work areas is via county roads and a residentially maintained driveway and yard. This project will include pre- and/or post- project maintenance and repair of existing previously constructed public county roads utilized during the construction of this project, which are administered by the county or local road authority. This construction activity will be conducted under the authority and supervision of the local public road authority and will consist of standard road construction practices appropriate to mitigate impacts to the local community from potential degraded road conditions in order to maintain public traffic safety.

Division 31 -	Earthwork, Erosion and Sedimentation Controls.
Division 33 -	Utilities, Storm Drainage Utilities, Ponds and Reservoirs.
Division 35 -	Waterway and Marine Construction, Shoreline Protection, Waterway Construction and Equipment.