This tender includes the construction of a DN250 storm sewer in closed construction (microtunneling) and the manufacture of an 8m deep DN2500 seepage pit from precast reinforced concrete elements using the sinking process.

This seeping shaft is to be located on the opposite property (Fl. No. 356) and is used to derive the building drainage from the Kirchenwirt. An emergency overflow into the public storm sewer is to be created. Due to the low position of the emergency overflow, the existing storm water channel must be lowered below the ST2348.

An emergency overflow from the DN250 infiltration system must also be connected to the new rainwater sewer.

All services should be provided in a closed design (microtunneling). The minimum slope of the jacking pipes is 1%.

Two new precast concrete shafts are to be built in Weßlinger Strasse, via which the new rainwater channel will be connected to the existing building.

1 piece reinforced concrete shaft DN2500, depth 8.00 m

2 reinforced concrete shafts DN1000, depth 1.80 m and 3.50 m

78m pipe jacking controlled (microtunneling) DN160-250

4 pcs moving the propulsion system

150 m² asphalt development and restoration

3 pcs connection to stock