Accession Number:

ADA229528

Title:

Dredging Research Program: Practices and Problems Associated with Economic Loading and Overflow of Dredge Hoppers and Scows

Descriptive Note:

Final rept.

Corporate Author:

ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB

Report Date:

1990-10-01

Pagination or Media Count:

54.0

Abstract:

Dredge hoppers and scows are commonly filled past the point of overflow to increase the load. Some Corps of Engineers Districts routinely allow overflow to increase the load, while others do not because of actual or perceived environmental andor economic reasons. No formal Corps policies or regulations governing overflow have been established, mainly because the required studies have not been performed. A survey of District practices indicates that the question of economic loading and overflow is governed by both project-specific considerations and restrictions imposed by resource agencies. Of 21 Districts with significant hopper or scow workloads, 14 reported restrictions on overflow. The majority of the restrictions were requested or imposed by resource agencies because of environmental concerns. In no case were project-specific data on overflow environmental effects available to support the need for restrictions or to technically justify overflow. Keywords Barges, Water quality, Scows, Turbidity.

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE