The project consists of the extension of Voivodeship No. 521 on the section from the intersection (ronda) with national road no. 55 in Kwidzyn to ul. Grunwaldska in Prabuty, with a total length of about 18.9 km. The road will run mainly on the trail, the roadway will have two lanes ranging from 3.25 to 3.50 m each. The aim of the project is to improve the technical parameters of the road to class G and increase the load capacity of the road to 115 kN/axis. All intersections with cross roads will be reconstructed, the unnormative arcs and slopes of the road will be corrected. Pavements, bicycle paths, pedestrian crossings with asylums or traffic lights, bus bays and ground roads will be built. Proper dehydration of the road through ditches and the construction and reconstruction of rainwater drainage in built-up areas will be performed. In the villages, street lighting will be built or rebuilt together with a conflicting network infrastructure of technical weapons.