TPF Sp. z o.o. implements for The Municipal Road Investments Administration in Warsaw, the following services: performs functions of Contract Engineer over the construction works of the regional road no.631 expansion, within the construction of the bridge object in the strech of Marsa – Żołnierska streets. It includes the renovation of the existing road system, as well as infrastructure access to the area within the investment task - Renovation of Marsa - Żołnierska on the section Marsa interchange - city border - Stage III.

The investment is the expension of the regional road no.631 within the bridge object construction in the route of Marsa – Żołnierska streets ((bridge length – 559,28 km, width: 11,40 m (roadway 2 x 3,5 m, median strips 2 x 0,50m, verges: 1,10 m + 2,30 m)).)

The investment also demands the reconstruction of the regional road system, existing infrastructure conflicting with the designed road, as well as implementation of the equipment limiting the negative effect on environment caused by traffic.