Lusaka Chirundu
Rehabilitation of T2: Lusaka – Chirundu road Link 4: Km 110+145 to km 134+576 & Trans Frontier section.
Client: Government of the Republic of Zambia (GRZ)
Funding: National Road Fund Agency (NRFA)
Financier: Development Bank of Southern Africa (DBSA)
Project Cost: US $27 Million
Services Offered: Construction Supervision and Design Review.
Project Description:
The rehabilitation works for the project road consisted of widening the existing road formation to allow for a cross sectional geometry of 2×3.5m lanes and 2x2m surfaced shoulders with 0.5m outer shoulder strips. Therefore, the completed road formation width was 12m wide. The reconstructed road carriageway and shoulders were surfaced using asphalt concrete. The works involved minor modifications to the horizontal geometry and more significant localized modifications to the road vertical geometry. The existing pavement layers were reprocessed to form new cement stabilised sub-base layers. The new constructed road had two (2) sections with different layers. The first section from km110+145 to km121+000 was constructed with a 150mm thick graded crushed stone base layer with 125mm thick asphalt concrete. The second section from km121+000 to km134+576 was constructed with a 90mm thick dense bituminous macadam base layer with 40mm thick asphalt concrete.