Comparative Analysis of Cost and Time of River Stone Drainage Channels with Ready Mix and Precast Concrete on Boyolangu Roads - Campurdarat, Tulungagung Regency

The road section of Boyolangu - Campurdarat is the main route to a tourist destination on the south coast of Tulungagung district, this route during the rainy season floods often occur because the drainage channel is unable to accommodate rainwater, causing water to overflow and inundate the road. Besides, passing vehicles slow down their speed, which causes congestion and even traffic jams, which must be immediately addressed by normalizing channels or constructing new drainage channels. An alternative method of material for making drainage channels is needed to shorten the time of execution of the work and minimize the number of workers. One type of material for making drainage channels is from ready mix concrete and U-ditch precast concrete. The difference between the type of material for making this channel from the conventional one is that it is made in a fabricated manner, which is carried out at the job site and does not require a long time, so it does not cause prolonged traffic jams. Based on the calculation of the drainage channel with a length of 7,750 meters with a workforce of 200 people/day, the cost of the drainage channel with river stones is Rp. 17,242,200,000, - with an implementation time of 393.78 days, the drainage channel with ready mix concrete Rp. 20,896,325,000, - with an implementation time of 305.72 days, drainage channels with precast u-ditch Rp. 41,546,200,000, - with an implementation time of 164.6 days