236Temporary Silt Basins

236.01 Description. This work shall consist of excavation and satisfactory disposal of

all materials excavated in the construction, clean out, and maintenance of silt basins. This work may also consist of maintenance and removal of existing silt basins constructed on previous projects. The Contractor shall construct earth dikes and overflow spillways, furnish and install outfall pipe, perforated elbows, perforated ri sers, and trash racks in silt basins where shown on the plans or as directed by the Engineer. The quantity of silt basins to be placed will be affected by the actual conditions that occur during the construction of the project. It is understood that measurement and payment for silt basins will be made only when shown on the plans or ordered by the Engineer, and a pay item is included in the bid schedule of the proposal. The quantity is estimated for bidding purposes only and will be dependent upon actual needs during construction of the project.

236.02 Blank.

236.03 Construction Requirements.

236.03.1 General. The Contractor shall excavate silt basins to the dimensions and at the

locations shown on the plans or as directed by the Engineer. The silt basins, new or existing, shall be cleaned out as frequently as necessary to have at least 50% of the basin capacity available at all times. The silt basins shall be completely cleaned out and the slopes shaped and dressed for seeding and mulching prior to completion of the project