This project will include the reconstruction of three alleys in downtown Dubuque into permeable alleys. The alleys are located between Iowa street and Central Avenue from 15th to 17th streets (2 alleys) and between Central Avenue and White Street from 17th to 18th Street (1 alley). All three alleys will have all pavement removed, complete reconstruction of the water main and sanitary sewer with associated private services. excavation to allow for 3 feet of porous stone, installation of a subdrain, connections to storm sewer, concrete bands and brick pavers suited for permeable pavement. There is an existing Lumen fiber duct bank that needs to be worked around on the alley between Central Avenue and White Street. The alley between Central Avenue and Iowa Street from 15th to 16th Street will have permeable pavers installed in a unique design pattern. Some of the project quantities include the following: Excavation: 2780 CY 7” PCC Pavement: 550 SY Permeable Brick Pavers: 13360 SF ASTM 57 Stone: 285 Ton ASTM 2 Stone: 4020 Ton 8” PVC C900 Sanitary Sewer: 805 LF 6” DIP Water main: 610 LF 12” DIP water main: 260 LF
