UFC 4-150-06
12 December 2001
5-7.5
Daybeacons..................................................................................... 5-83
5-7.6
Fog Signals...................................................................................... 5-83
5-7.7
Ranges ............................................................................................ 5-83
5-7.8
Design of Support Structures........................................................... 5-83
5-7.9
Moorings.......................................................................................... 5-83
5-7.10
Buoy Systems.................................................................................. 5-83
5-7.11
Environmental Monitoring and Operator Guidance .......................... 5-83
5-7.12
Carrier Channel Guidance System .................................................. 5-84
5-8
MARINE IMPROVEMENT AND SHORE PROTECTION ................. 5-84
5-9
SEDIMENT MANAGEMENT PROJECTS ........................................ 5-86
5-10
PHYSICAL SECURITY .................................................................... 5-86
Paragraph
6-1
INTRODUCTION ............................................................................. 6-1
6-2
ACCOMPLISHMENT OF WORK ..................................................... 6-1
6-3
TERMINOLOGY .............................................................................. 6-1
6-4
CURRENT DREDGING DESIGN PRACTICE.................................. 6-2
6-4.1
Navy Harbors................................................................................... 6-2
6-4.2
Dredging Research Program ........................................................... 6-2
6-4.3
Methods........................................................................................... 6-2
6-5
PROJECT DEPTH........................................................................... 6-2
6-5.1
Overdepth Dredging ........................................................................ 6-3
6-5.2
Advanced Maintenance Dredging .................................................... 6-3
6-5.3
Disposal Areas................................................................................. 6-3
6-5.4
Downtime Criteria for Projects and Water Level Extremes .............. 6-4
6-6
ECONOMIC FACTORS ................................................................... 6-5
6-6.1
Amount of Material to be Dredged ................................................... 6-5
6-6.2
Distance From the Dredging Site to the Disposal Site ..................... 6-5
6-6.3
Environmental Considerations ......................................................... 6-5
6-6.4
New work Versus Maintenance Dredging ........................................ 6-5
6-6.5
Other Factors................................................................................... 6-5
6-7
GEOTECHNICAL FACTORS .......................................................... 6-5
6-7.1
Sediment Analysis ........................................................................... 6-5
6-8
UNEXPLODED ORDNANCE........................................................... 6-6
6-9
MAGNETIC SILENCING FACILITIES.............................................. 6-6
6-10
DREDGING EQUIPMENT ............................................................... 6-6
6-10.1
Mechanical Dredges ........................................................................ 6-6
6-10.2
Hydraulic Dredges ........................................................................... 6-7
6-10.3
Special Equipment........................................................................... 6-8
6-10.4
Selection of Dredging Equipment .................................................... 6-9
6-11
DISPOSAL OPTIONS...................................................................... 6-9
6-11.1
Landfill ............................................................................................. 6-9
6-11.2
Construction Materials ..................................................................... 6-9
6-11.3
Marshland Wetland Habitat.............................................................. 6-9
6-11.4
Upland Wildlife Habitat .................................................................... 6-10
6-11.5
Beach Nourishment ......................................................................... 6-10
Paragraph
7-1
INTRODUCTION TO COASTAL PROJECT ELEMENT DESIGN .... 7-1
7-2
TYPES AND FUNCTIONS OF COASTAL STRUCTURES .............. 7-1
vi