Specifications include, but are not limited to: The work will be done under one prime contract that includes: General, Mechanical, and Electrical construction. The following summary is a general guide to the scope of work. It should not be construed as a detailed list of work included in the contract. The work will be done under one prime contract that includes: General, Mechanical, and Electrical construction. The following summary is a general guide to the scope of work. It should not be construed as a detailed list of work included in the contract. 1. Removal and disposal of existing control structure. 2. Furnish and install precast concrete control structure. 3. Sheet piling misc. metal work. 4. Erosion control and site restoration.