Specifications include, but are not limited to: • All workmanship and products must meet City of Omaha Standards. • Concrete must be City of Omaha Type L65 and supplied by an NRMCA certified plant. The successful Bidder is required to coordinate all concrete testing with Olsson Associates prior to pours. MECA is responsible for the cost of testing. All pour slips and test results must be submitted to MECA to ensure that the quality of concrete meets necessary standards. • The successful Bidder shall adhere to all codes, ordinances, or other regulatory requirements covering the scope of this project. City of Omaha Standard Plates apply, including but not limited to: 500-50, 500-52, 500-82, and 1000-03. • The successful Bidder shall obtain all appropriate permits for the work. • Completed areas must adhere to all building and ADAAG codes and regulations. • Ramps and inserts shall be in conformance with the City of Omaha standard specifications. • The successful Bidder will ensure that all concrete matches existing grades, slopes, joints, and patterns to adjacent areas that remain in place unless otherwise specified. • When removing existing concrete, Bidder shall take special care to ensure straight and clean edges in all areas. • Any necessary ground prep needs to be finished prior to pouring concrete (limestone) with a minimum rating of 4,000 PSI. • Silane Siloxane Sealer (Aquapel Siloxane Sealer) must be applied to all new concrete areas. • Expansion foam: ½” expansion foam must be installed as needed per City of Omaha specifications between any existing structures and sidewalks. • Medium brush finish to match existing concrete. • Expansion joints should be caulked with gray polyurethane SLT. Control joints do not require hot tar or caulk. Costs associated with caulking should be included on the Proposal Form within the supplies and labor for applicable Areas. • Sidewalks: Concrete for sidewalks must be SG65 or L6. Subgrade for sidewalks must be in accordance with Section 200 and constructed with Section 500. No sidewalk work shall be less than one complete panel. Contraction joints shall be scored to a minimum depth of T/4, where T is the sidewalk thickness. • Concrete pavement joints: When two adjacent lanes are placed at the same time, the longitudinal joint common to both shall be the sawed type. The keyed type longitudinal joint shall be used when an adjacent lane is not placed at the same time.
