Holden Natural Drainage System ( NDS ) ( RE - BID )

2026-11-03

This Project will provide water quality treatment for street runoff by retrofitting the roadsides with bioretention treatment systems . This Project consists of the following elements of Work including but not limited to : construction stormwater erosion control ( submittal , implementation , and maintenance of the Construction Stormwater Pollution Prevention plans ( CSECP / SWPPP , TVSPP , SP , & TDP )); health and safety plan ; clearing and grubbing ; demolition and removal of existing surface pavement , sidewalks , and curbs ; excavation ; temporary traffic control plan and implementation , including flagging ; site preparation and staging ; survey ; removal and abandoning existing drainage structures and piping ; dewatering ; temporary stormwater bypass ; protection , relocation , and / or adjustments of existing utilities , including water and gas services ; reconnection to the existing drainage system ; installation of new surface drainage systems , including storm drainage piping , drainage structures , bioretention cells , and modular structural soil cell tree facilities ; flow testing ; assist SPU crews with water service and meter box relocations / adjustment ; television inspections ; and final site restoration , including surface paving , pavement markings , sidewalks , curbs , driveway , curb ramps , final planting , and landscape construction .

Washington

2026-05-01