In the period of seven months during 2006.-2007. Investinženjering Ltd. provided services of construction supervision on toll collection buildings Bisko, Blato on Cetina and temporary one in Šestanovac on the Highway Project Split – Dubrovnik, section Dugopolje-Šestanovac. Toll collection buildings at the exit from the highway include the toll booths, the control buildings and related facilities. The value of investments: 1.9 million €.
On the Šestanovac-Zagvozd highway section Investinženjering Ltd. provided services of supervision on the construction of the organization and traffic control center Zagvozd and toll collection buildings Zagvozd and Šestanovac. The Centre consists of facilities for maintenance and traffic control, administrative buildings, workshops, garages, silos for salt, gas stations, parking canopies and other ancillary facilities. And the Toll collection buildings at the exit from the highway include the toll booths, the control buildings and related facilities. Investment value is 3.9 million €.
Investinženjering Ltd. provided supervision services on a 12.7 km part of Zagvozd – Ravča highway section. The section consists of two viaducts, three overpasses, six underpasses and five retaining walls. Viaduct Dubrava is 260.6m long and constructed with semi-prefabricated construction methods. Viaduct Rašćane which has a length of 633m was constructed by pushing and braking method. The total value of investments in Zagvozd – Ravča section was 61.9 million €.