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Urban / Suburban railway
(line - stations)

Urban railway
(technical bases)

Transportation projects
Route planning

Road structural works
Egnatia Odos bridges
Valley bridges in Peloponnese
Tympanon tunnel
Symbolo tunnel

Railway structural works
Technical consultant and
project management services
OBERMEYER undertook the preliminary design of the Symbolo tunnel as part of the design of Section 12 of Egnatia Odos (Strymonas River - Agios Andreas).

The tunnelling project comprises two tunnels, one for each direction of Egnatia Odos. Each tunnel's length is approximately 1200m and the maximum overburden height is approximately 180m. The cross-section of each tunnel is horseshoe-shaped, with a height of 5m and with a street width of 8.50m. The portal areas of the two tunnels will be constructed with the cut & cover method. According to the geological and geotechnical study, the tunnels will be drilled in a rocky environment with gneiss, granite and marble to be the predominant rock formations. The tunnels will be constructed according to the NATM method.

The project has a budget of 30 million.

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