Project implemented in sist. design and build, located on the territory of Świętokrzyskie voivodship in Konecki (gm. Radoszyce) and Kielce (Gmina Łopuszno). The investment includes the expansion of DW 728 and its scope begins in Radoszyce at the crossroads from ul. Sand (cross. with DP 0473T) in istn. km approx. 104+ 100 (proj. km 4 + 146,00) and ends in m. Łopuszno at a veritable cross of the type roundabout (ul. Konecka, Przedborska, Włoszczowska), where roads DW 728 – DW 786 in real km are crossed by roads 120 + 480.00 (proj. km 20 + 151.50). The total length of the extension is approx.16.005km, including the length of the area. Chałczyna 1.65 km. Parameters: road class G, traffic category KR-4/KR-5, load 115 kN/axle, width 7.0 m (2x3.5m) with asphalt band. 2x0.5m, hardened side 2x1.25m, wide bay autob. min.3m. It also provides for: meteo stations., walkways min. 1.5 m and walking-bike. min. 2.5 m, bicycle paths min. 2 m, reconstruction of the bridge, construction/expansion of culverts, construction of station posts. for cars, construction/expansion of buildings of the bridge. Main road extension (in-wall gr. 4 cm from the weight of SMA11S, binding gr. 12 cm with WMS AC 22 W, basic foundation gr.8 cm with AC22P, poduud. with aggregate gr.20 cm 0/31, ground substrate brought to G1). The project also includes investor supervision, authorship, project doc., promotion, purchase of land. In Radoszyce on the crossroads. DW 728 with road no. 0401T has been designed with a roundabout type (correction of the existing crossroads). The project is consistent with the objective of action 5.1. Road infrastructure RPOWŚ 2014-2020 – Increased transport accessibility and improved regional safety of the complementary TEN-T network under the Investment Priority 7b – Increasing regional mobility by combining secondary and tertiary nodes with TEN-T infrastructure, including multimodal nodes, as the extended road will have a capacity of 115 kN/axis.