1609CLEAN WATER DIVERSION

16-3 Section 1607

GRAVEL CONSTRUCTION ENTRANCE 1607 -1 DESCRIPTION Furnish, install, maintain and remove all material required for the construction of a gravel construction entrance. 1607 -2 MATERIALS Refer to Division 10. Item Section Stone for Erosion Control, Class A 1042 Geotextile for Drainage, Type 2 1056 1607 -3 CONSTRUCTION METHODS Install a gravel construction entrance in accordance with Roadway Standard Drawings and at locations as directed by the Engineer . Install g ravel construction entrances in a way to prevent vehicles from bypassing the construction entrance when leaving the project site. 1607 -4 MEASUREMENT AND PAYMENT Geotextile for Drainage will be measured and paid in accordance with Article 876 -4. Stone for Erosion Control, Class ____ will be m easured and paid in accordance with

Article 1610 — 4.

Such price and payment shall be full compensation for all work covered by this section 16 including all materials, construction, maintenance and removal of a gravel construction entrance. 1609 -1 DESCRIPTION Install, maintain, and remove any and all material required for the construction of clean water diversions. The clean water diversions shall be used to direct water flowing from offsite around/away from specific area(s) of construction . 1609 -2 MATERIALS Refer to Division 10. Item Section Geotextile for Soil Stabiliza tion, Type 4 1056 1609 -3 CONSTRUCTION METHODS Install in location(s) shown on the plans or as directed by the Engineer . Construct in accordance with the details. Stabilize excavated material immediately in accordance with Section 1620 or using other stabilization methods utilized with prior approval from the Engineer. Line clean water diversion with geotextile unrolled in the direction of flow and lay smoothly but loosely on soil surface without creases. Bury top of slope geotextile edge in a trench at least 5 inches deep and tamp securely. Make vertical overlaps a minimum of 18 inch with upstream geotextile overlapping the downstream geotextile. Secure geotextile w ith eleven gauge wire staples shaped into a u shape with a length of at least 6 inches and a throat of at least 1 in ch in width. Place staples along outer edges and throughout the geotextile a maximum of 3 f eet horizontally and vertically .