Tenders Are Invited For Construction Work – N8 / Lungern North – Giswil South: Construction Lot 21 Route And Engineering Structures North

Construction Work – N8 / Lungern North – Giswil South: Construction Lot 21 Route And Engineering Structures North. In The Area Between The South Portal Of The Existing Giswil Tunnel And The New Kaiserstuhl Tunnel (Separate, Already Awarded As Construction Lot 19), The Road Infrastructure Will Be Expanded So That In The Future The National And Cantonal Roads Can Be Routed Separately Over Two Separate Routes. Todays Brünigstrasse Route Runs Over The Existing Buochholz Bridge, Past The Owi-Land To The Lungerersee. The Existing Buochholz Bridge Will Be Used For The National Road After The Opening Of The Kaiserstuhl Tunnel. A New Road Bridge Will Be Built For The Cantonal Road Parallel To The Existing Bridge (Already Awarded Separately As Construction Lot 20). In The Present Construction Lot 21, The Services For Closing The Gap Between The Griffeldossen/Buochholz Area (Construction Lot 20) And The Kaiserstuhl Tunnel (Construction Lot 19) Are Being Procured. The Services Include Route Work For National And Cantonal Roads With Supporting Structures As Well As A Saba, A Pw, Terrain Modeling In The Marchgraben Area, Hydraulic Engineering Work And Smaller Engineering Structures. With This Procurement, Services For Construction Work Are Being Procured For The Main Work Described Below: Road Construction And Factory Line Construction ------------------------------------------ New Construction Of A National Road Over A Length Of Approx. 500 M (A Total Area Of ​​Around 7500 M2) Including The Giswil Süd ¾ Connection As Well As The Reconstruction Of The Existing Brünigstrasse Over A Length Of Approx. 400 M (A Total Area Of ​​Around 4000 M2) And New Construction Of Flurstrasse. Each Including Substructure, Drainage Surface And Marking As Well As Various Work Pipe Relocations, Temporary Arrangements And New Constructions (Including New Fire Water Pipe For The Kaiserstuhl Tunnel). For This Purpose, The New Saba Schwendiboden And The North Portal Stacking Basin Are Being Built In The Perimeter (Excavation Pit Protection With Stirring And Nail Walls). In Addition, This Construction Lot Will Be Used To Procure The Services For The Decking Construction (Approx. 16,000 M2) And Marking (2.1 Km Length) Of The Kaiserstuhl Tunnel (Construction Lot 19). Terrain Modeling And Hydraulic Engineering ------------------------------------------ Adaptation Of The Channel (Upper And Lower Reaches) And The Marchgraben Bedload Collector (Block Stone Base, Approx. 2,500 M2), As Well As New Construction Of The Shallow-Founded Marchgraben Final Structure (Reinforced Concrete Culvert With A 6.2 M Span). Various Terrain Modeling Work In The Marchgraben And Trassee Area (Removal Of Approx. 25,000 M3 And Filling Of Approx. 35,000 M3). New Construction Of Retaining Structures And Engineering Structures: ------------------------------------------ Construction Of Two Angle Retaining Walls, Each Around 140 M Long And Up To 9 M High, Including Backfill (Approx. 5,500 M3) And The North Tunnel Kaiserstuhl Portal Structure In The Area Of ​​The New N8 Route. Construction Pits Have Already Been Created In A Preliminary Lot (Construction Lot 17A). Sometimes Working In Traffic.