The tunnel under National Road No. 1 in Tychy

On 22 July 2014, Mostostal Warszawa completed works on the tunnel under National Road No. 1 in the district of Wartogłowiec in Tychy, along with construction of a connection route between Cmentarna Street and Goździków Street.

Project characteristics: the implementation goal was to build a tunnel under National Road No. 1 in Tychy along with construction of a connection route between Cmentarna Street and Goździków Street, which is grade-separated road system intersecting National Road No. 1 (Beskidzka Street) at 1+682.41 km in the district of Wartogłowiec.

Contractual value: PLN 13 728 302.26 gross

Construction of a road tunnel under National Road No. 1 (spandrel beam of the tunnel - approx. 640 m3 of concrete)

Total length - 45.5 m

Span of axes - 13.9 m

Vertical clearance - 4.5 m

Load class - A

Approx. 640 m3 of concrete

Construction of retaining walls - cavity walls (more than 3,100 m3 of concrete), and "angular" walls (more than 400 m3 of concrete)

Construction of staircases

Acoustic screens

Acoustic mats

Construction of road no. 1 (passage under National Road No. 1), reconstruction of road no. 2, Goździków Street, Skotnica Street, Cmentarna Street - a total length of over 750 meters.

Construction of an intersection - roundabout

Construction of sidewalks and bicycle paths - more than 3,800 m2

Horizontal and vertical marking

Reconstruction/construction of a sewerage network with installation of a pumping station with a capacity of 41 dm3/s and a retention reservoir with a capacity of 47m3

Reconstruction of water supply networks

Reconstruction of gas networks

Electrical works: construction of lighting, reconstruction of MV and LV lines, construction of connections for the pumping station

Reconstruction of telecommunication networks

• Investor: Municipal Management Board of Streets and Bridges in Tychy

• Contractor: Mostostal Warszawa S.A.

• Contract value: PLN 13.7 million

• Implementation period: 2013 - 2014