For comprehensive management of sediments of inner bays, it is important to understand the suspended-sediment transports from the watershed through rivers flowing into inner bays. However the sediment transport have not been understood especially under flood-flow conditions due to few continuous monitoring data for suspended sediment transports. For this purpose, we have installed turbidity sensors in the influent rivers into Tokyo Bay to continuously monitor SS trasnports. The observed results indicate that the coefficient b in sediment rating curve (L=aQb) are closely related to land use of the watershed. Total SS transports flowing into Tokyo Bay were annually 0.6 – 2.5*106 ^{ton. The SS trasnports in Edogawa, Arakawa and Tamagawa Rivers are 66 % of total SS transports.}