‘In situ’ dynamic tests of a gated gravity dam

T h is p a p e r p r e s e n t s f o r c e d v i b r a t i o n t e s t r e s u l t s o f a g a t e d g r a v i t y dam , C re stu m a dam , l o c a t e d i n D ouro r i v e r n e a r O p o r to .