Section 245 Section 245 rebound to their originally install height or become damaged shall be removed, disposed of, and replaced by the Contractor at no additional expense to the Department. The Contractor shall be required to remove and dispose of all sediment that is accumulated adjacent to the dike.
245.04 Method of Measurement. Silt dike will be measured by the linear foot.
245.05 Basis of Payment. Silt dike, measured as prescribed above, will be paid for by
the linear foot, which price shall be full compensation for all cost of equipment, labor, materials, installation, cleaning and removal, and all incidentals necessary to complete the work. Payment will be made under: 245-A: Silt Dike - per linear foot SECTION 246 - SANDBAGS AND ROCKBAGS
246.01 Description . This item of work shall consist of the furnishing, installing, and
maintaining sandbags and rockbags for the purpose of temporary erosion control by intercepting and slowing the flow of sediment-laden runoff water, or for use as a temporary dam.
246.02 Materials. The filler material for sandbags shall consist of a fine aggregate
meeting the requirements of Subsection 703.02. The filler material for rockbags shall consist of a size 57 aggregate meeting the requirements of Subsection 703.03. The bag material shall be woven polypropylene, polyethylene or polyamide fabric with a minimum unit weight of four (4) ounces per square yard. The bags shall be a minimum of 21 inches in length, 12 inches in width, and four (4) in thickness when filled.
246.03 Construction Requirements. Sandbags and rockbags shall be used to construct
a berm/dam that will intercept sediment-laden storm water runoff from disturbed areas, create a retention pond, detain sediment, and re lease water in sheet flow. Sand or rock shall be placed in the bag so that at least the top six (6) inches of the bag is unfilled to allow for proper tying of the open end. Any subsequent rows of bags shall be offset one-half the length of the preceding row to provide a layered brick-type arrangement. The sandbag and rockbag berm/dam installation shall be maintained in good condition by the Contractor. All necessary work and materials to maintain the integrity of the installation shall be provided until earthwork construction is complete and permanent erosion-control features are in place. The maintenance of the bags will not be paid for separately and will be included in the cost for sandbags or rockbags.
246.04 Method of Measurement. Sandbags and rockbags will be measured per linear
foot or each. Sandbags and rockbags measured by the linear foot shall be in accordance with the details in the erosion control drawing. The length of the sandbag or rockbag berm/dam will be measured end-to-end along the cross- section of the ditch in accordance with the erosion control drawing.
246.05 Basis of Payment. Sandbags and rockbags, measured as prescribed above, will
be paid for per linear foot or each, which pr ices shall be full compensation for furnishing bags, fine aggregate, size 57 aggregate, placement of bags, maintenance of the installation, removal and disposal of the sediment deposits and removal after construction has been completed, and for all labor, tools, equipment and incidentals necessary to complete the work. Payment will be made under: 246-A: Sandbags - per linear foot or each 246-B: Rockbags - per linear foot or each SECTION 247 - TEMPORARY STREAM DIVERSION
247.01 Description . Temporary stream diversion shall consist of excavating,
stockpiling excavated material, and constructing a stream diversion at a new/existing drainage structure. It shall also include preparation of the diversion stream’s bottom and slopes in accordance with the erosion control drawings.
247.02 Materials. Geotextiles of the type specified shall meet the requirements of
Subsection 714.13. Riprap of the size specif ied shall meet the requirements of Section 705.
247.03 Construction Requirements. Temporary stream diversion(s) will be
constructed in accordance with the erosion control drawings. During the excavation of the stream diversion, all excavated material shall be stockpiled and used to backfill the stream diversion when no longer needed. The stockpiled material shall be treated so the sediment runoff from the stockpile shall not contaminate surrounding areas or enter the nearby streams. If the Contractor elects not to stockpile and maintain suitable excavated material, other suitable material will be used to backfill the stream diversion at no additional costs to the State. Any excavat ed material that the Engineer deems to be unsatisf actory, will be removed from the project and replaced with suitable material when the stream diversion is backfilled.
247.04 Method of Measurement. Temporary stream diversion will be measured per
each. Stream diversions that are both left and right of a station number will not be measured separately and will be measured as one unit (each). Payment for the disposal and replacement of the unsuitable excavated material during the construction of the stream diversion will be measured and payment made under the appropriate pay items.
247.05 Basis of Payment. Temporary stream diversion, measured as prescribed above,
will be paid per each, which prices shall be full compensation for all excavation, backfill, geotextile fabric, pumps, pipe, sandbags, riprap, silt fence, maintenance of the