Project Description
SOMAC’s work on this most prominent project consisted of the procurement and construction of three large bridges (two over 425m in length and one over 140m), some as prestressed box girders and some as precast post tensioned beams. Deep piles for abutments and huge retaining walls 12m in height with associated buttresses were built. Said bridges had to pass over high pressure hydrogen sulfide gas pipelines and overpassed two seawater canals 60m wide, a case which posed a big challenge in construction. Super elevated box girders 2.4m high and 17m wide with free spans up to 60m in length were built. The bridges received three sequences of post tensioning. Over 150 precast post-tensioned beams up to 38m in length and 90 tons in weight each had to be installed under very adverse conditions, location- and schedule-wise. SOMAC prestressing engineers and teams carried over six hundred prestressing operations implementing the design criteria with high accuracy and superlative professionalism. SOMAC dealt with the three world authorities on bridges: T.Y.Lin, VSL Losinger, and James Libby (California, USA) and delivered the challenging project ahead of schedule.
