Ngwenya Border Post

EMPLOYER
Ministry of Public Works and Transport

CONSULTANT
Becom/OOP JV

YEAR COMPLETED
2003

VALUE AT COMPLETION
R358M

LOCATION
Swaziland

PROJECT TYPE
Toll Roads and Freeways

DESCRIPTION
A feature of this project was the excavation and protection of rock cuttings over a 10km length of mountainous terrain. Blasting of rock adjacent to the existing road was required and great importance was attached to the method of controlling this blasting to ensure the safety of the public and a minimum of disruption to the continuity of traffic flow. Stability of two large cuttings was achieved by installation of rock nails designed to prevent slippage or uncontrolled rock falls.Construction Involved the following: The rehabilitation & upgrading of 19.15km of the Mbabane / Ngwenya Road, (MR3) from single to dual carriageway & 46.8km of service roads. 7 No grade separation interchanges with bridges, 3000 m culverts, 6000m2 Reinforced Earth,1 No road-over-pass, 8 No Footbridges over the dual carriageway, 28 000m3 Concrete, 4 No Retaining Walls with total length of 112km,1 500 000m3 of Earthworks, 4 No cattle creeps in Reinforced Concrete, 30 000m3 Premix, 275 000m3 Selected Sub-grade, 95 000m3 Crushed Stone Base, 97 000m3 Ducting, 8 000m3 Sub-surface Drains.



N4 Toll Road East

EMPLOYER
SANRAL

CONSULTANT
Keeve Steyn and Stewart Scott JV

YEAR COMPLETED
2004

VALUE AT COMPLETION
R1.7 Billion

LOCATION
South Africa, Gauteng

PROJECT TYPE
Toll Roads and Freeways

DESCRIPTION
Pretoria, RSA, Lobatse and Botswana. Construction Involved the following: Construction of 500km of Road and 5 Mainline Toll Plazas, 2,132,000 m3 Cut or borrow to fill & selected layers, 300,000 m3 Cut to spoil,hard, 30,500 m3 Stone and sand for subsoil drains, 550,000 m3 Stabilised road pavement layers,401,000 m3 Crushed stone basecourse, 53,000tonnes Cement and stabilising agent, 3,711,700 m2 Single and double seal surfacing, 176,300tonnes Asphalt surfacing, 146,000 m2 Concrete block paving, 63,000 m3 Concrete, 4,420 linear metre Precast concrete bridge beams, Precast concrete culverts, 8,800 linear metre > 1.5 x 1.5 m

N4 Tollroad West

EMPLOYER
SANRAL

CONSULTANT
Keeve Steyn and Stewart Scott JV

YEAR COMPLETED
2004

VALUE AT COMPLETION
R1.7 Billion

LOCATION
South Africa, Gauteng

PROJECT TYPE
Toll Roads and Freeways

DESCRIPTION
Pretoria, RSA, Lobatse and Botswana Construction Involved the following: 400km of toll road construction, 100km widening of 4-Construction Involved the following: 400km of toll road construction, 100km widening of 4-lanes to 6-lanes, 100km of new construction of a 4-lane highway, 200km of widening climbing lanes, Pipe Culverts 32 300 lin.m, 20 x bridges, 30 x underpasses, 50 x culverts cast in-situ, 15 x toll plazas, Earthworks 10 210 000m³, Asphalt 168 800 tons, Layerworks 2 832 000 m³, Surfacing 5 210 000m²