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The Ziepniekkalna street overpass forms stage three of the Southern Bridge complex which is the most modern of the five bridges over the river Daugava within the Riga city limits. The project includes a 803 m long bridge as well as two stages of multi-level flyovers and overpasses on both shores of Daugava. It currently represents the largest infrastructure project in the modern history of the republic. With finalisation in 2013, construction has been realised within nine years.
The completion of the third stage of the Southern Bridge complex allowed to divert heavy traffic from the centre of the capital and consequently reduced the congestion.
mageba supplied both RESTON-POT bearings and TENSA-MODULAR expansion joints for the project. Pot bearings were produced for the load capacity between 1,850 kN and 11,200 kN. Maximum longitudinal movement reached +/-155 mm. Modular expansion joints of lengths
16.4 m and 17.7 m were installed on site. Total movement capacity of each joint is 160 mm.
Moreover and as special feature, ROBO-DUR reinforcing rips were installed at this bridge for the first time in Latvia. These rips greatly reduce the deterioration of the asphalt adjacent to the joint and hence prolong the life of the wearing surface and the expansion joints. For this reason, many local designers and contractors joined to follow the trial installation procedure.
RESTON-POT bearings, TENSA-MODULAR expansion joints
ROBO-DUR reinforcing rips
Reinforced concrete overpass
Ministry of Transport
Inženierbūve, Pro Via