Project Specifications and Overall Objective:

The objective of this civil engineering project is to alleviate traffic congestion in the area by constructing a 10-span bridge along the northern and southern sides of the existing bridge, with a length of 40 meters, to increase the bandwidth of the crossing passage and facilitate traffic flow on the main street, Ostad Moein Boulevard, and intersection of the 20-meter-wide Gas Street in Rasht. Due to the bridge’s high importance and the soil conditions, special precautions were taken in the structural design of the bridge. The project, which involves in-situ piles, column piles, reinforced concrete abutments, column heads, precast reinforced concrete beams, parapets, and deck, was designed on a 2,000-square-meter plot. The general specifications are as follows:

– Ten 8-meter-wide concrete bridge spans with a total length of 40 meters

– Bridge deck area: 640 square meters

– 16 in-situ piles with a diameter of 120 centimeters and a height of 28 meters from the ground level

– Concrete pouring volume: 1,200 cubic meters of concrete

– Rebar used in the project: 170,000 kilograms

– Number of precast concrete beams constructed: 18 beams, each weighing approximately 15,000 kilograms

– Soil operations volume, including excavation and backfilling: 7,000 cubic meters