11831 AIRPORT RD WHOLE SITE FILE 2020-01-21

Catch Basin Type 2, 60 In. Diam. with Overflow Riser will be measured per each. There will be no specific measurement for the lump sum bid item "Infiltration Chamber Gallery". There will be no specific measurement for the lump sum bid item "Stormwater Detention Tank System". Connection to Existing Drainage Structure will be measured per each. Adjust Catch Basin or Manhole will be measured per each. Adjust Utility Box to Finish Grade will be measured per each. 7-05.5 Payment Section 7-05.5 is supplemented with the following: All costs associated with furnishing and installing grates/lids for inlets, catch basins and manholes shall be considered incidental to the unit bid price per structure regardless of lid/grate type. "Connection to Existing Drainage Structure", per each. The unit contract price(s) above shall be full pay for connection to existing drainage structure or existing drainage pipe, including but not be limited to: coring the existing catch basin, cutting the existing pipe, repairs needed to restore the pipe to use, and sealing the new connections. "New Solid Locking Lid", per each. The unit contract price per each for"New Solid Locking Lid" shall be full pay for all costs necessary to install the new solid locking lid. When the lid falls within the sidewalk, ramps, or crosswalk, work will include furnishing and installing a slip-resistant coating on the lid. "Adjust Catch Basin or Manhole", per each. "Adjust Utility Box to Finish Grade", per each. The unit contract price per each for"Adjust Catch Basin or Manhole" and "Adjust Utility Box to Finish Grade"shall be full pay for all costs necessary to make the adjustment including, but not limited to, meeting slip-resistant standards, rotating cover to align with curb or to accommodate new improvements as necessary, and restoration of adjacent areas in a manner acceptable to the Engineer. Adjustment of existing storm vault lids to finish grade will be measured and paid as "Adjust Catch Basin or Manhole" per each. "Wetland Treatment Catch Basin", per each. The unit contract price per each for the "Wetland Treatment Catch Basin" shall be full pay for furnishing and installing Modular Wetland Systems Linear Systems Vault(s) model MWS-L-4-4 or an approved equal, including preparation of structural submittals, pipe connections, pretreatment cartridges, treatment media, plant support media, and all incidentals necessary to complete the installation in accordance to the plan, specification, and manufacturer's recommendations. Swift Green Line—Corridor Stations Special Provisions SP100 May 2017