Chekka Tripoli Highway, Abou Halka Viaduct

Client: Council for Development and Reconstruction
Location: Between Chekka and Tripoli, North Lebanon
Value: $21,134,769.63

The Construction of Abou HALKA viaduct was assigned under the contract for construction Chekka Tripoli Highway.

The cast in situ post tension dual carriage way viaduct is 100m long and 11.75m wide. It is comprised of two traffic lanes 3.50m wide each along with the sidewalk 0.80m wide. The viaduct is laid on 14 columns (the highest being of 10m) with centering at 30m and two abutments.

The roadways section consists of 2 ways 15m wide each: an inner verge of 1.30m, 3 road lane of 11.10m wide with a 2.60 m shoulder on the right side.

This section of the Highway begins at Chekka Interchange, passes by Enfeh, Qalamoun reaching Bahsas Interchange (which is the ending point of this section). The total length of this section is approximately 15.40Km, and the alignment crosses a gently sloping terrain.

In addition,the Boulevard of Bahsas links the Coastal Road of Al Mina to the Southern Entrance ofTripoli via the Bahsas Interchange. The length of this section is soom.

• Earthworks 932,000m3.
• Granular sub-base 200,000m3.
• Asphalt works 195,000 Ton.
• Concrete works 300,000m3 and reinforcing steel to 2,500 Ton.

Site and geotechnical investigation (existing utilities, boreholes at Bridges, Structures, Culvert and retaining walls locations).

Earthworks (1,298,377m3) for road construction, structures, drain age channels, culverts, bridges, walls, etc. ..

• Sub-base and base course layers (181,749m3).
• Two Asphalt Pavement layer (203,601 Ton).
• Construction of 6 overpass bridges of 40m length each, 1 underpass bridge of 66m length, 1 overage exceptional of 101m length, 2x 15m wide (in total: 16342m3 of reinforced concrete with 1,401,175 Kg of steel reinforcement and 1477,190 Ton of pre-stressed reinforcement).
• Construction of box and pipe Culvert (10,386 lm), L0,403 lm of porous drain, 25,906 lm of concrete ditches for Storm water drainage network. Construction of 2,755m2 of reinforced earth Walls (in total 45,123m3 of selected fill with 53,518m of armature).
• Protection works (slope protection, drainage ditch, grouted riprap).
• Street Lighting works.
• Utilities works and relocation of existing utilities.
• Road and bridges accessories: 14 Km of New Jersey Barrier, Guard rails, signing and marking.