Long reach excavators have extended booms capable of 50-70’ in length. The best solution is a special excavator built for dredging, called a long-reach excavator. Futhermore, limited sediment can be placed next to the excavator because it is typically very wet and runs back under the excavator tracks.
As you increase the depth the bucket moves closer and the length decreases dramatically. The issue with 15-25’ is that it is the maximum dredging if you were straight out. Small mini-excavators typically reach up to 15’ horizontally and larger excavators can increase the length up to 25’. Mini-excavators, midi-excavators, and large excavators all have different bucket sizes, weights, and length of reaches. Excavators are available in many different sizes. Read more about the White Brook and Broad Brook Siltation Basins Dredging Project here.Dredging the sediment with an excavator is also an option. NOTE: The next phase of restoration has begun and includes maintaining our investment wisely. When it was brought to the attention of engineers by a steering committee member that a wire grate located below the dam's water line might prohibit the fish from leaving the pond, a Plan B was created, avoiding further risk to natural species. The unanticipated failure of a system to hold water back from Rubber Thread Pond (Williston-Northampton School area) resulted in an explosion of silt entering Nashawannuck Pond, driving sediment over the dam into the Lower Mill Pond. While a team of federal, state and local government officials, private companies and local citizens volunteering their time worked on the logistics, materials and labor costs, there were a few unforeseen and unpredictable issues that arose along the way. The devastation in the south caused by Hurricane Katrina diverted funds that had been allocated for the dredging, extending the start for an another two years while new funding could be sought. This initial project was not without some setbacks. Years of sediment and weed growth was dredged and removed, allowing for a deeper, cooler channel designed to impede weed growth and encourage an improved natural habitat for fish and other species. In 2011, after more than twenty years of planning, consultations, meetings, site visits, permitting reviews, and funding delays, the pond underwent a daunting major reconstruction.
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