Tenders Are Invited For Dam Construction Work – Polder Bellenkopf/Rappenwört Vp403b: Earthworks/Dam Construction, Road Construction, Steel And Reinforced Concrete Work, Open Spaces Within The District Boundary To Waidweg

Dam Construction Work – Polder Bellenkopf/Rappenwört Vp403b: Earthworks/Dam Construction, Road Construction, Steel And Reinforced Concrete Work, Open Spaces Within The District Boundary To Waidweg. The Tender Consists Of The Following Key Areas: 1) Renovation Of Rhwd Xxvi In The Section From The Karlsruhe-Rheinstetten District Boundary To Waidweg. To Do This, Dismantle The Existing Dam And Build A New One Largely On An Analog Route. The Dam Structure Is Chosen So That The Material From The Old Dam Is Included In The Structure Of The New Dam. Hermann-Schneider-Allee Divides The New Building Into Two Construction Sections To The South And North Of 1100M And 600M In Length Respectively. In The Southern Area, A Bunker Dismantling In The Existing Dam Is Required As Well As The Creation Of A Construction Site Access And A Construction Site Area Of ​​Around 17,000M2. The Southern Area Is Scheduled To Be Manufactured From June 2026 To December 2027. In The Northern Area, The Construction Site Will Only Be Available From 2027. Most Of The Construction Roads Already Exist Here. 2) In The Northern Area, Construction Of A Drainage Ditch On The Landside Of The New Dam. Excavation Of Around 5400 M3 Of Soil For A Trench With A Length Of Around 600M And A Depth Of Around 1.5M. A Soil Replacement With A Depth Of 1.0 - 2.0 M And Around 2400 M3 Must Be Created Below The Trench Bottom. In Some Areas, The Trench Must Be Sealed With Bentonite Mats Over A Length Of 75M. 3) Construction Of Two Culvert Structures And Two Green Bridges On The Landside Next To The Dam. The Proposed System Provides For Sheet Pile Wall Abutments With Head Beams And Prefabricated Parts As A Bridge For All Four Structures. The Green Bridges Are 5.0M Wide, The Passages Are 25M And 10M Wide Respectively. 4) Construction Of An Empty Pipe Route Largely In The Dam Crest Along The Entire Length Of The New Dam And Also In The Landside Maintenance Route. 5) Establishment Of Path Connections.