US PROJECTS | TRENCHLESS


Second, at Bismarck Airport, North Dakota, a


programme of trenchless tunnelling is underway that will improve stormwater drainage in areas adjacent to aircraft movement areas. The new drainage regime will also reduce bird strike hazards at migration time, happening as snow melts.


HDD PIPELINE FOR GROUNDWATER RECHARGE In eastern Virginia, groundwater is being used at rates faster than it can be replaced, leading to a variety of problems beyond supply issues. Hampton Roads Sanitation District (HRSD) has


embarked on an innovative programme - the Sustainable Water Initiative for Tomorrow (SWIFT) - to ensure a more sustainable source of groundwater as well as reduce the rate of land subsidence and saltwater infiltration. The programme will enhancing the reliability of


long-term water supply of Hampton Roads. In addition to replenishing the aquifer, the SWIFT programme is projected to eliminate up to 90 percent of the District’s discharge to local waters, which also means reduction in nutrient load and so help to protect the environment of Chesapeake Bay.


March 2025 | 19


All:


HDD tunnelling used for pipeline in groundwater recharge project, in Virginia


IMAGES COURTESY OF BRIERLEY ASSOCIATES


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53