Modern Technology Introduces a Variety of Bridges to Help With the Challenge of Crossing Rivers. a Bridge Is a Building Designed to Cross a Physical Barrier (Such a Body of Water, Valley, Road, Or Rail) Without Obstructing the Path Below. It Is Designed to Allow Passage Over the Obstruction, Which Is Typically Something That Would Be Difficult or Impossible to Cross Otherwise. Construction of Bridges Main Challenge Is How to Construction the Foundation In to the River. the Objective of Current Research Is To Use a Variety of Technology to Research and Analyze the River Flow at the Tidal Influence. Various Management Strategies Are Proposed to Overcome Difficulties In Building Bridges Across Rivers