References – Sewer Construction and Rehabilitation

Eigenbetrieb Stadtentwässerung Böblingen in early 2016 tasked IWR GmbH with the planning, tendering, and construction supervision for the manhole and sewer rehabilitation on Brunnenstraße, which included the renovation of seven manholes of a depth of up to seven meters as well as the rehabilitation of 400 metres of sewage pipes with an oval-shaped section DN 600 / 900 and 700 / 1050. A specific challenge consisted in the requirement to begin and complete all work within the summer holidays. Moreover, the state of the existing manholes presented some difficulties in the mineral coating stage, which, however, we were able to overcome with ease. The deadline for the rehabilitation was successfully met.

In the spring of 2015, IWR GmbH was asked by Eigenbetrieb Stadtentwässerung Böblingen to plan, tender and supervise the replacement of the sewerage at Ulmenweg. The work comprised the replacement of the sewerage including the branch lines to houses, more specifically the replacement of 90 metres of DN 300-type sewage pipe and of six collection chambers.

On behalf of Eigenbetrieb Stadtentwässerung Böblingen, IWR GmbH handled planning and construction supervision for new storm water sewers, both as cut-and-cover and trenchless construction, as well as drinking water pipelines built with the cut-and-cover method. The biggest challenge of the project consisted in underpassing a noise barrier via pipe ramming.