24725 - Pitching Stone on River Bank of the River Haven, Boston

The Environment Agency is required to replenish areas of the River Haven's bank in Boston, previously protected by stone. The material shall be natural stone of good quality, uniform in texture, free from iron banks, spots, sand holes, shakes and other imperfections. The material shall have a mean density of not less than 2,400kg/m³ and be crushed with 95% of the pieces falling within the size range of 300-800mm. 50% of the pieces shall fall within the size range 300-500mm. The supplier may propose an alternative...