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The extremely rapid growth of the population, which rose from  500 000 inhabitants in 1967, to close to 2.4 million in 2003, led to an intensive  occupation of space in the  Cap-Vert Peninsula with the creation of new districts.

However, these urban developments were not complemented by a rational decentralization of economic and social activities and thus contributed to creating the progressive distance between residential areas and working zones and substantially increasing the transport demand.

Already in 1978, the authorities had envisaged the construction of a highway between Dakar and Thiès. The comprehensive implementation study of the said project had been prepared and the invitations for tender were waiting to be launched.

Today, it is imperative to construct this highway, at least the section that stretches from Dakar to Diamniadio, in view of the high traffic congestion, which has settled as a permanent issue and which causes a near traffic paralysis during rush hours. The latest traffic audit campaign conducted in November 2001 on the existing highway estimated the number of vehicles at 70 000 per day in both directions (entering and exiting Dakar).

Besides, within the framework of new priorities defined by the High State authorities, concerning the issue of urban mobility in the Dakar region, the Senegalese government intends to restore, in the short-term, a good standard of service on the highway stretch between Malick Sy and Pikine.

The construction of this highway section worth 50 billion Francs CFA is the first step in the implementation of the future Dakar – Diamniadio highway.

This investment represents a strong signal and a significant participation by the State in the implementation of the Dakar – Diamniadio toll highway and contributes substantially to making it more attractive within a Public-Private Partnership framework.

In implementing this project, the government seeks to restore, with respect to transportation, the necessary conditions to consolidate growth and promote the emergence of new investments and economic development zones on the Dakar – Thiès axis  (horticulture, textile, manufacturing, clothing, new technologies, etc.).

The major specific objectives targeted through the project are:

·         Ensure that people and goods can easily commute in and out of Dakar and improve urban mobility in Dakar and its suburbs

·         Facilitate a connection between the new Ndiass airport, Downtown Dakar and the future Business Center,  scheduled to be built on the site of the current airport; 

·         Promote an urban development policy outside the heavily congested zones of the Cap-Vert Peninsula



The project consists in the construction of a toll highway between Dakar and Diamniadio (32 Km) which will also service the new international airport situated 42 km away from Dakar (Ndiass).

·         32 km from Dakar to Diamniadio

·         Two three lane carriageways  on the  Malick Sy - Patte d’Oie – Thiaroye stretch

·         Malick Sy overpass (toboggan)

·         Patte d’Oie Interchanges

·         Hann Interchange

·         Reconstruction of the Colobane Bridge

·         Cambéréne Interchange

·         Pikine Interchange

·         The la Roseraie overpasses

·         Under passes will replace the projected Viaduct of Pikine

·         Thiaroye Interchange

·         Keur Massar Interchange

·         Rufisque East Interchange

·         Rufisque West Interchange

·         Diamniadio Interchange


There are plans to connect the Highway to the National Road 1(NR1) with a 2.36 km long linking road and an interchange on NR1

The project is divided into 2 phases

1.    Malick SY – Pikine (12 Km)

2.    Pikine – Diamniadio (20 Km)


Malick Sy - Pikine: Public Funding 

Pikine – Diamniadio: Public-Private Partnership, 40% State / Development Partners,       60% Private



A significant number of actions have been accomplished since the project officially started in 2005. Below is a short list of the most significant progresses made so far:

·         Analysis of studies already undertaken in 1978 ;

·         Survey of the 1978 routing;

·         Legally securing the area covered by the project ;

·         Conduct of  a study relative to the traffic audit on the Dakar –Thiès highway (2002) ;

·         Conduct and updating of the study on the traffic, revenues and social acceptability of the toll system  (2003 and 2005) ;

·         Conduct of a complete study (2004) on:

      o     the routing and construction costs;

      o    the effects on mobility and the social and environmental impacts ;

      o    analysis of the feasibility and economic viability of the  Dakar -Thiès Toll Highway project;


·         Development and updating  a financial (2003 and 2005) ;

·         Commencement of land use control operations (communication campaign, physical delimitation of the right-of-way, census of occupants and networks situated in the right-of-way, evaluation of compensation to be paid to the populations) identification of relocation and resettlement sites.

·         validation by the authorities of the reports on the technical, economic and financial studies  (2005) ;

·         validation of the principle of financing the project  with public/private funds (2005) ;

·         Construction works on the first highway section spanning from Malick Sy to Pikine.




To ensure the project’s rapid kick-off, the first section from Malick Sy to Pikine (12 km) which includes the 7 km long Malick Sy – Patte d’Oie stretch and the 5 km long Patte d’Oie – Pikine stretch are being constructed through government funding.

1.1  Malick Sy - Patte d’oie highway stretch

The 7 km long Malick Sy - Patte d’Oie stretch, initially a 2 x 2 lane road, has been extended to 2 x 3 lanes with government funding. Ninety-seven per cent of the works entrusted to the  JLS/HENAN CHINE contractors’  grouping are currently complete.

These major works include three interchange systems:

·         An interchange at Patte d’Oie that branches on with two major roads the NR1 and the VDN (Northern Exit Runway),

·         Two interchanges: one at Colobane and one at Hann.

 On this section, there are four standard civil engineering structures:

·         Colobane underpass;

·         Hann underpass;

·         Patte d’Oie with three underpasses


·         International Call for tenders for the selection of a construction works firms (25 February  2005) ;

·         Selection of the Firm (June 2005) ;

·         Evacuation of the rights-of-ways ; (April –July 2005 ; October 05- January 06)

·         Commencement of works  (July  2005)


 Technical Description

·         7 Kilometers long

·         Roadway with 2 carriageways 2 x 3 lanes with an Emergency parking shoulder, a Median strip, and an outstanding road structure

·         Three interchangers : Colobane, Hann and Patte d’Oie

Progress report

·         Currently as of the first quarter of 2009 the section is at the finishing stage

·         Civil engineering works are 98% complete

·         Roadway work are 96% complete

·         Overall the highway section from Malick Sy to Patte d’Oie is at a 97% progress status, which means there is a 3% delay in the overall completion of the initial work planning

·         Works completion is scheduled for December, 2008. 


1.2  Patte d’Oie - Pikine highway stretch

The final design was prepared by SCET Tunisia for this 5 km long highway stretch. It is currently being constructed as a three lane dual carriageway under Government funding. 

On completion of the construction procurements, the works were awarded to the Portuguese construction company MSF, which broke ground, in November 2006 with the launching of excavation works. The proposed date for the commissioning of the road is the last quarter of 2009.  The future operator will be in charge of the road’s operation and maintenance. On this highway stretch, the traffic expected on commissioning (by 2008) is between 30,000 and 45,000 vehicles per day in both directions depending on the sections.

There are two minor interchanges on this highway section:

    The Camberene  minor interchange, 

    The Pikine minor interchange.


NR1 section

·         Length 5km

·         2x3 roadway +  2 carriageways X 2 lanes + Emergency parking shoulder +TPC + Band lowered by 0.5m

Highway section

·         Length 5 km

·         Roadway 2X3 lanes + Emergency parking shoulder

·         Interchanges : Cambéréne and Pikine

·         Toll station in Camberene  : Semi barrier, full lane short arm gates

On this section, the following engineering structures works were identified.

·         Pikine Highway underpass : progress  

·         Camberene Highway underpass  

·         La Roseraie overpass  

·         03 Highway structures at the end of the project  (OA AUT/NR1 - OA AUT/RAILS  - OA NR1/RAILS)

·         Foot bridge 00

·         Foot bridge 01

·         Foot bridge 02

·         Foot bridge 03

·         Highway underpass  

Progress report

·         Ninety eight per cent of right of way evacuated

·         Launching of tenders for the selection of a firm (March 2006)

·         Award of works to MSF

·         Commencement of design execution (November 2006)

·         The surveying exercise is completed

·         Excavation works are underway

·         Civil works underway

·         Pikine underpass : 90% complete

·         Camberene underpass: 45%

·         “La Roseraie” overpass :  70%

·         Highway/ NR1 underpass :  05%

·         Implementation studies in the final stages  

·         Setting up of construction site

·         Platform soil clearing works 95% complete.

·         Excavation works 50% complete

·         Foot bridge no. 2 Foundation being laid  

·         Improved sub grade : under way

·         Hydraulic structures : 50 %

·         Proceedings to unveil the network of operators under way

·         Pedestrian underpass : 100% complete

·         Works completion : scheduled for the end of 2009



Pikine-Diamniadio highway stretch

A final design for this section was conducted by the Consultant SCET Autoroute, The section starts at the East of the Pikine viaduct which crosses NR1 and the railway tracks. It is 20km long and the final design report is available.

 The section is 20 km long and has a cross section (2x3 then 2x2 towards the end) with a 33 km standard section and it includes an interchange system with 5 minor interchangers as well as 19 highway infrastructures.

On this section, the traffic expected on the commissioning of the road (2011) varies from 15,000 to 30,000 vehicles per day in both directions, depending on the sections. 

In a bid to execute this second phase from Pikine to Diamiadio which is 20 km long, APIX has decided to entrust the design, financing, operation and maintenance to a private partner (an operator). The tender for the selection of the latter was launched on November the 20th of 2008. 

As far as the work schedule and planning is concerned, this highway section has been divided into two stretches: the first stretch stems from  Diamniadio to Keur Massar (12 km) and the second stretch from Pikine to Keur Massar (6 km).

The construction work components are as follows :



·         Concept

The concept is to build structural infrastructure attuned to current needs but which can be easily extended.

·         Highway layout

Length of highway stretch: 20 km 

·         Cross section:

o    Between Pikine (PK 4,2,  Seven Up crossroads) and the Thiaroye full lane station (PK 7), comprising a 33m platform  in a standard section with 2x3 lanes, BAU  and a TPC

o    Between the Thiaroye full lane station (PK 7) and Diamniadio (PK 25), comprising a 33m platform in a standard section (2x2 lanes), with: 

Interchange systems :

- Diamond shaped minor interchanger of Thiaroye

- Keur Massar trumpet interchanger

- Rufisque West trumpet interchanger

- Rufisque East trumpet interchanger

- Diamniadio trumpet interchanger

- Diamniadio linking strip:

- Two carriageways 3.5 meters wide

- An underpass crossing the railway lines 

- A trumpet like minor interchanger link to the NR1


Civil works structures

-Eleven overpasses,

- Five underpasses

- Four pedestrian crossing bridges complemented by four mixed bridges (hydraulic and agricultural)


Operational equipment

- Lighting of the standard section of the highway and the traffic interchangers between PK 4.2, PK 9.750. 

- Six toll stations: a full lane station in Thiaroye and five stations on the traffic interchangers. 

- Open system toll up to the full lane station in Thiaroye and a closed system thereafter.


Thiaroye Toll Station:

The toll is operated as an open system up to the Thiaroye full lane station and a closed system thereon. 

On this stretch, the estimated traffic on commissioning of the highway (2011) varies from 4000 to 42,000 vehicles per day in the two directions depending on the sections.