dredging streambeds may be an effective technique for mining

It may also lead to saline-water intrusion from the nearby sea. Depletion of sand in the streambed and along coastal areas causes the deepening of rivers and estuaries, and the enlargement of river mouths and coastal inlets. Instream mining lowers the stream bottom, which may lead to bank erosion. Any volume of sand exported from streambeds and coastal areas is a loss to the system.Įxcessive instream sand-and-gravel mining causes the degradation of rivers. The effect of mining is compounded by the effect of sea level rise. In-stream mining lowers the stream bottom, which may lead to bank erosion.

Mining operators, in conjunction with cognizant resource agencies, must work to ensure that sand mining is conducted in a responsible manner.Įxcessive in-stream sand-and-gravel mining causes the degradation of rivers.

Today, demand for sand and gravel continues to increase. Full Project – IMPACT OF SAND AND GRAVEL DREDGING ON THE ENVIRONMENTĬlick here to Get this Complete Project Chapter 1-5įor thousands of years, sand and gravel have been used in the construction of roads and buildings.

Dredging streambeds may be an effective technique for mining