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In the City of Rijeka, Croatia, in the Kantrida region, the Water Sport Complex for the 2008 European
Champion ship is under construction. An excavation for a garage in the north part of the complex is the most
geotechnically demanding part of the project. Several existing buildings (a petrol station and an apartment
building) and a traffic line to the north are in close proximity to the construction site. Geotechnical
conditions at the site are very complex: on the lateral sides of the pit a limestone rock mass outcrops at
surface while in the eastern central part of the location there is a ravine filled with deep clayey deposits. The
natural surficial terrain has significantly been changed by cut and fills activities. The excavation itself
involves a construction pit, varying from 14.50 m deep on the northern end to 1 m depth on the southern end,
which was designed, based on the results of the detailed geotechnical investigation work performed. The
open pit was constructed in several phases, with a retaining wall constructed for the soil layers and
reinforcement by bolting and a grid reinforced concrete construction. During the open pit construction, a
monitoring system was established. An active design procedure was established which made possible
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