1633TEMPORARY ROCK SILT CHECKS

16-13 Engineer . Dress the area to blend with existing contours, seed and mulch the area in

accordance with Section 1660. 1632 -5 MEASUREMENT AND PAYMENT Payment for rock inlet sediment traps will be made as follows: 1/4" Hardware Cloth will be measured and paid in linear feet of hardware cloth, m easured in place from end post to end post at each separate installation completed and accepted. Stone for Erosion Control, Class ____ will be measured and paid in accordance with

Article 1610 — 4.

Sediment Control Stone will be measured and paid in accordance with Article 1610- 4. Silt Excavation will be measured and paid in accordance with Article 1630- 3. Payment will be made under: Pay Item Pay Unit 1/4" Hardware Cloth Linear Foot 1633 -1 DESCRIPTION Construct, maintain and remove devices placed in ditches, diversions or swales to reduce water velocity and contain sediment. The actual conditions which occur during the construction of the project will determine the quantity of temporary rock silt checks constructed. The quantity of silt check dams may be increased, decreased or eliminated entirely as directed by the Engineer . Such variations in quantity wi ll not be considered as alterations in the details of construction or a change in the character of the work. 1633 -2 MATERIALS Refer to Division 10. Item Section Sediment Cont rol Stone, Standard Size No. 5 or 57 1005 Stone for Erosion Control, Class B 1042 Matting for Erosion Control 1060 -8 Flocculant shall be applied in powder form and shall be anionic or neutrally charged. Soil samples shall be obtained from the project location and from offsite material used to construct the roadway and analyzed for the appropriate flocculant to be utilized with each wattle. The flocculant product used shall be listed on the North Carolina Department of Environmental Quality Div ision of Water Resources website as an approved flocculant product for use in North Carolina. 1633 -3 CONSTRUCTION METHODS