Work included under this contract consists of erosion and sediment control, dewatering, demolition of partial concrete dam sections, rock excavation, new reinforced concrete, concrete surface repairs with crack injection, installation of stop log structures, and removal of streambed gravel deposits. Engineer's Estimate: $100,000 - $500,000 SMALL BUSINESS CERTIFICATION AND SMALL DIVERSE BUSINESS MPLS: Responsive bidders must hold a current small business certification from PA Department of General Services (DGS) Failure to meet this requirement may be cause for rejection. Enter the DGS Small Business Certificate Number on bid form signature page where