Belgium – Foul-water piping construction work – Project 23.558/1 & STK3010 - Stekene, Optimalisatie verbindingsriolering Hellestraat

Project 23.558/1 & STK3010 - Stekene, Optimisation of Hellestraat drainage. This project specifically includes:

• preparatory demolition works of existing paving and drainage with connections.

• construction of semi-separated drainage with house connections and street manholes.

❖ pipes di 250: 763 m

❖ pipes di 300: 366 m

❖ pipes di 315: 12 m

❖ pipes di 400: 1,801 m

❖ pipes di 500: 430 m

❖ pipes di 600: 1,261 m

❖ pipes di 700: 513 m

❖ pipes di 800: 45 m

• installation of pressure drainage in polyethylene

❖ pipes du 63: 14 m

❖ pipes du 75: 242 m

• installation of push-fit piping in polyethylene

❖ pipes du 160: 382 m

• construction of pump station: PS1

• construction of overflows and pinch structures (some mandatory prefabricated – see mention in bill of quantities)

• adaptation works on existing overflow structures

• construction of pumping units for pressure drainage

• works on watercourses

• realisation of wadis with plastic grass mats

• installation of U-channels with infiltration pits: 4,028 m

• drying out the trench with additional provisions:

❖ discharging the drainage water outside the project zone in public ditch OST045 – for Zone from Sperrestraat to Kemelstraat

❖ when necessary: purification of the drainage water after sampling and analysis

❖ during periods of drought: providing drainage water

❖ probe-controlled drainage

• construction of plateaus in washed-out concrete on a foundation of water-permeable gravel

• construction of a central reservation in print concrete on a foundation of water-permeable gravel

• construction of carriageway with paving in K.W.S. on gravel foundation

• construction of carriageway with paving with three layers of KWS on water-permeable gravel foundation and sub-base

• reconstruction of carriageway in KWS paving (2-layers) on crack-inhibiting layer: steel reinforcement mesh

• construction of carriageway with paving in radiated concrete paving stones on draining lean concrete foundation

• construction of parking spaces with paving in radiated water-permeable concrete paving stones on draining lean concrete foundation

• construction of verges in grass concrete paving slabs on foundation and sub-base of water-permeable gravel

• construction of gutters, kerbs and pavement strips

• construction of cycle paths in red concrete with safety strip in print concrete on gravel foundation type I

• construction of paving in concrete paving stones according to specific laying pattern on gravel foundation type IIA

• construction of paving in concrete paving stones for driveways on foundation of water-permeable gravel

• construction of paving in concrete paving stones in herringbone pattern on gravel foundation type IIA

• installation of tactile paving slabs

• construction of driveways in grass concrete paving slabs on foundation of water-permeable gravel

• construction of green plantings and street furniture

• construction of cycle path in red synthetic resin marking layer

• accentuation of plateaus at intersections in burgundy-red synthetic resin marking layer

• visualisation of a central lane in grey synthetic resin marking layer

• equipment with marking and signage

• repair of various pavings

• the tasks to be carried out by the Contractor cfr. KB of 25/01/01 regarding temporary and mobile construction sites and project safety and health plan.

• archaeological investigation