Specifications include, but are not limited to: We will use a hydraulic dredge and low ground pressure excavator to remove up to 4,200 cubic yards of sediment from the southern stretch of Bride Brook from the northernmost bridge to its confluence with LIS. The Natural Resources Conservation Service (NRCS) took core samples from Bride Brook in November 2020. A total of eight samples were taken to a depth of 92cm. The samples were analyzed for texture and pH. The results indicated that large stretches of the creek contained sulfidic soils. After four months of drying and wetting, acidity levels ranged from 3.21 to 7.3. The final acidity of cores varied with depth and location. There was much variation. This indicates that the majority of the material at present will not be conducive to establishment of plants and it will be extremely difficult to partition out the material that did not become appreciably acidic. Thus, the top layers of material will have to be amended before being placed on the marsh surface.
