The upstream of the dam crest is provided with wave wall, which is integrated with the dam body, and its structure is reinforced concrete structure. Expansion joints shall be reserved at the transverse joints of the breakwater dam body, and water stop points shall be set in the joints. The wall is 1.5m high and 50cm thick to meet the operation safety requirements. The dam crest adopts concrete pavement, inclining to both sides, with a slope of 2%. Drainage pipes are set on both sides to collect rainwater on sidewalk and discharge it into reservoir. Sidewalk with width of 1m is set on both sides of dam crest Road, 20cm higher than dam crest road. The total width of the dam crest is 10 m. Handrails and street lights shall be set at the downstream side. The detailed structure is shown in the figure