Johnson County Ionwave #2026-049 Addendum 1

Johnson County Wastewater Seeks Bids for Mission Woods Force Main Replacement Project

Johnson County Wastewater is seeking bids for the Mission Woods Force Main Replacement Project, a major sanitary sewer infrastructure upgrade in Mission Hills, KS. - Government Buyer: - Johnson County Wastewater (KS) - Purchasing Office - Scope of Work: - Installation of approximately 1,829 lineal feet of 8-inch diameter force main (primarily via horizontal directional drilling) - Installation of new pre-cast polymer concrete vaults (6-foot and 5-foot diameter) with air release and meter assemblies - Installation of a 4-foot diameter polymer concrete gravity manhole - Abandonment of approximately 1,833 lineal feet of existing 8-inch cast iron force main with flowable fill - Pump station improvements: new meter vault, bypass connection, drain line, and sitework - Removal and restoration of curb, trees, and pavement for access drive construction - Complete site restoration and landscaping - Products/Materials Requested: - Polymer concrete vaults and manholes - 8-inch PVC/HDPE or ductile iron force main pipe and fittings - Air release valves and meter assemblies - Flowable fill for abandonment - Erosion control, ground protection mesh, asphalt pavement, and curbing - Services Requested: - Mobilization/demobilization - Erosion and tree protection - Bypass pumping during construction - Testing of new force main per JCW specifications - Site restoration to owner satisfaction - Unique/Notable Requirements: - Mandatory pre-bid meeting and site visit - Coordination with Mission Hills Country Club for utility location and restoration - Strict compaction and testing standards - 3-year maintenance bond for sanitary sewer work - Compliance with Johnson County Wastewater and City of Mission Hills specifications - Submission of bid bond - OEMs/Vendors: - No specific OEMs or vendors are named; bidders must propose manufacturers for key materials such as polymer concrete vaults, force main pipe, air release valves, and related components.

Description

This Invitation for Bid is for the Johnson County Wastewater Mission Woods Force Main Replacement Project, Contract No. MTM1 C075. The scope includes installation of approximately 1829 lineal feet of 8-inch diameter force main via horizontal directional drilling, installation of new polymer concrete vaults and air release valves, abandonment of existing force main and air release valve vault, testing of the new force main, pump station improvements, and site restoration. The project requires coordination with Mission Hills Country Club and includes mandatory pre-bid meeting and site visit.

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