1. Bidding conditions: The construction project of rainwater and sewage diversion facilities in Danfeng County has been approved for construction by the Danfeng County Administrative Approval Service Bureau under the Dan Administrative Approval Wholesale [2024] No. 340. The bidder (project owner) is the Danfeng County Housing and Urban Rural Development Bureau, and the construction funds come from the finance. The project contribution ratio is 100.00% of state-owned funds. The project has met the bidding conditions and is now open for bidding. Potential bidders (hereinafter referred to as applicants) who are interested are invited to submit pre qualification applications. 2. Project Overview and Bidding Scope 2.1 Construction Location: South Square Road, Luchi Community, Xifeng Community, Luojia Community, Longjuzhai Street Office, Danfeng County; 2.2 Project Scale: The main implementation content is to renovate the rainwater and sewage pipelines and drainage channels in Pingfang South Road, Xifeng Community, Luojia Community, and Luchi Community. The total length of the renovated rainwater pipe culverts is 2957m (including 240 meters of DN200 rainwater pipes, 565 meters of DN300 rainwater pipes, 852 meters of DN400 rainwater pipes, 240 meters of DN500 rainwater pipes, 440 meters of DN2200 rainwater pipes, 620m of 3000 * 1500mm rainwater tank culverts, and 197 rainwater inspection wells and outlets). The total length of the renovated sewage pipeline is 2011 meters (including 36 meters of DN200 sewage pipeline, 1730 meters of DN300 sewage pipeline, 245 meters of DN400 sewage pipeline, and 95 sewage inspection wells).; 2.3 Total project investment: 37539900 yuan (including an estimated 37539900 yuan for this bidding project); 2.4 Planned construction period: 180 calendar days; 2.5 Section division: Section 1: Section name: Section 1 of Danfeng County Rainwater and Sewage Diversion Facility Construction Project; Lot number: E6110003551xygx4413u001; Section type: Construction; Section 2: Section Name: Section 2 of Danfeng County Rainwater and Sewage Diversion Facility Construction Project; Lot number: E6110003551xygx4413u002; Section type: Construction; Section 3: Section Name: Section 3 of Danfeng County Rainwater and Sewage Diversion Facility Construction Project; Lot number: E6110003551xygx4413u003; Section type: Construction;; 2.6 Bidding Scope: Section 1: Construction of Rainwater and Sewage Diversion Facilities in Danfeng County. The construction content of Section 1: (K0+024.731-K0+529.942) Rainwater flows through Jiangbin North Road and finally enters Danjiang, with a total length of 505.211m for the rainwater pipeline. The road starts from Jiangbin North Road in the south and ends north of Longju Street, with a total length of 517.502m. (K0+000-K0+529.942) The road starts from Jiangbin North Road in the south and ends north of Longju Street, with a total length of 529.942m. Section 2: Construction of Rainwater and Sewage Diversion Facilities in Danfeng County. The construction content of Section 2: (K0+529.942-K0+916.283) starts from north of Longju Street in the south and ends at the central square in the north. The total length of the road is 386.341m; from K0+529.942 to K0+916.283, it starts north of Longju Street in the south and ends at Zhongxin Street in the north; （K0+879.