GAUTRAIN PROGRESS: MIDRAND-CENTURION-PRETORIA
Posted on 24 December 2009 by Railways Africa Editor
VIADUCT 3
North of the depot, Viaduct 3 over Allandale Road and the adjacent bridge over the future K60 road are both complete, as are all other bridges, construction works and railway installations up to Dale Road in Midrand, with only minor finishing works outstanding.
MIDRAND STATION
At Midrand Station, station building works, including the structural steel platform and concourse roof structures, are substantially complete and roof cladding is in hand. Platforms are substantially complete and the track formation through the station was completed during October. Retaining walls, earthworks and drainage for the parking areas are well advanced and layerworks and surfacing have commenced.
From the Midrand area northwards, civil construction up to the Technopark area at Centurion is approaching completion. Drainage, layer works, duct installation, catenary mast bases, noise barriers and fencing continue. All these works are well advanced along extended lengths of the alignment.
VIADUCT 4
Viaduct 4, which crosses Rietspruit and Olifantsfontein Road South, is complete and awaiting installation of track and overhead catenary.
CENTURION AREA
VIADUCT 5 OVER THE N1 & BEN SCHOEMAN
Viaduct 5 carries the elevated line through Centurion, forming the link between the balanced cantilever viaducts crossing the N1 highway at John Vorster interchange in the south and the Ben Schoeman highway at the Jean Avenue interchange in the north. It supports the elevated Centurion station platforms, located approximately midway along its length. The deck spans of this viaduct comprise precast concrete segments which are erected using purpose-built steel launching girders and then stressed together to form the deck spans. By the end of November, approximately 85% of the deck spans had been erected, with parapets in position on many.
Construction of supporting piers and abutments at both the John Vorster and Jean Avenue balanced cantilever viaducts is complete. Work on the in-situ balanced cantilever deck sections on top of the piers at each of these viaducts is in progress. With the first spans at both of these viaducts now substantially complete, the graceful arched forms of these exceptionally long deck spans are clearly identifiable.
CENTURION STATION
The elevated Centurion station platforms are located on Viaduct 5, immediately adjacent and parallel to West Street. The concourse buildings and parking area are at ground level. The viaduct piers and deck spans on which the station platforms are being constructed have been completed. Installation of platform parapets is well advanced and erection of the platform canopy structure has commenced. At ground level, work continues on foundations, concourse and technical room building works and platform access stair
construction. Dynamic compaction of the parking area is in progress.
VIADUCT 6 OVER EEUFEES ROAD
At Viaduct 6, three of the six spans of precast deck segments have been installed using a launching girder.
SALVOKOP AND PRETORIA
Near Salvokop at the approach to Pretoria, a cut-and-cover structure crosses beneath the Ben Schoeman highway. Construction work here is complete and reinstatement of the northbound carriageways is in progress.
PRETORIA STATION
At Pretoria Station, concrete and building works, as well as the platform and concourse roof cladding, are substantially complete. Curtain wall framing is well advanced, curtain wall glazing is in progress and internal finishing works have commenced. Demolition of the adjacent McCarthy building has been completed and preparations for parking area construction in this area are in hand.
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