This is the 14638th most frequent Russian word.
перекрыть
To block, overlap, cover, or shut off.
In this sentence, 'перекрыли' means 'blocked' or 'closed off,' referring to obstructing access to the road for its maintenance.
Рабочие перекрыли дорогу для ремонта.
Workers blocked the road for repairs.
Here, 'перекрыли' implies 'turned off' or 'shut off,' indicating the act of stopping the flow of water.
Мы перекрыли воду в ванной перед установкой оборудования.
We turned off the water in the bathroom before installing the equipment.
In this usage, 'перекрыли' means 'obstructed' or 'blocked,' suggesting that the buildings physically hindered the visibility of the sea.