... USD investment being implemented in 10 years (200 5-2 015): ã Program for Medium and Small Water Systems in dispersed areas in highlands and mountains aiming at satisfying local water demand and ... control, inundation mitigation, irrigation, fishery, aquaculture and water way are needed. Overview of Dam and Reservoir Development 1 DAM DEVELOPMENT IN VIETNAM - ACHIEVEMENTS AND CHALLENGES ... wall, grouting,…) to cut off seepage flow. A thin reinforced concrete wall was made inside the Trang Vinh Dam (H=28m, V=75 mil. m3) in Quang Ninh Province (North Vietnam) . Cement-bentonite...