tunnel construction site in the national road rn 41 in cheraga by day.

tunnel construction site national road cheraga day algeria november trucks machines cranes concrete barriers traffic jam metal steel traffic formwork concrete asphalt car closed construction site corridor day hole national road road street tar tunnel pipeline transportation engineering industry underground equipment subway architecture city material drainage machinery dust dirt occupation construction industry industrial equipment building activity urban road construction material working iron metal digging bulldozer construction machinery adult men engineer people blue-collar worker backhoe land vehicle sand rock object danger stone material employment labor traffic jam unrecognizable person crane machinery truck machine vehicle clouds cloud cloudy sky sunlight road street streest cheraga algiers algeria site construction