Client:
Mpumalanga Provincial Department of Public Works, Roads and Transport
Completion Date:
Mach 2015
Expertise:
Structural Engineering

Construction Supervision of the Komati River Bridge on Road D2952

BACKGROUND

The client’s objective was to provide an all-weather road link between the rural villages of Masibekela and Sibange in the Mpumalanga Province. The project was subject to the “Comprehensive Rural Development Program” (CRDP). As part of the project the client aimed to empower people living in the vicinity of the construction site through training and development. All labour required on site was sourced from the villages surrounding the construction site.
The project was extended by adding the management of the construction of houses due to required relocation. Construction was undertaken by residents of the village under the guidance of Lidwala.

DESCRIPTION

This project comprised the construction of a reinforced concrete bridge structure, embankments for the new bridge approaches and the construction of approximately 2,3km of new surfaced road.
The main work items undertaken in terms of the construction of the new bridge involved the following:
 Superstructure consisting of in-situ cast solid concrete slab.
 Concrete slab supported by seven pre-cast pre-stressed concrete beams, supported on substructure.
 Substructure of five cast in-situ concrete wall-type piers and abutments.
 Cast in-situ concrete pile caps supported on six cast in-situ concrete piles of 1.0 m diameter each.
 The main work items undertaken in terms of the construction of the new Road involved the following:
o Construction of 13, 2/6,7mm Double Seal on G4 base and C4 stabilized sub-base.
o Construction of raised block paved sidewalks both sides of the road.
o Construction of kerb and channel combination with downpipe structures.
o Installation of guardrails, road signs and painting of road markings.
o Construction of stone pitching and gabion erosion protection.
o Re-vegetation of all disturbed area.


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