Three Consecutive Days Of Field Instrumentation And Structural Assessment To Measure Vibration Of Bridge Superstructure Using Triaxial Accelerometer, Liner Displacement At Expansion Joint Location Through Lvdt, Deflection Measurement At Mid-Span Through Laser Sensor, And Preparation Of Structural Adequacy Report Based On Field Results And Structural Analysis (Through 3D Fea Modelling Analysis In Midas/Sofistik) / Span Basis For An Existing River / Rail Over Bridge In Valsad District.