2！Selected Case Histories
-Navigation, Flood Control, and Dam Structures
-Bridges
-Immersed Tube Tunnels and Pipelines
Bay Area Rapid Transit (BART) Tunnel
Boston Tunnel
Chek Lap Kok Airport transportation links
Oresund Link
Puget Sound gas pipeline
North Sea gas pipeline
Los Angeles sewage sludge outfall
Puerto Rico sewage outfall
- Offshore Oil Platform Structures
Jacket and jack-up structures
Compliant tower structures
Tension-leg platform structures
Gravity-based structures
- Other Underwater-Founded Structures
Wharf off-loading system
Ship dry docks
Berlin¨s Potsdamer Platz
Baltic Sea wind turbines
Offshore military tracking platforms
Bantry Bay tanker terminal
Submerged oil storage tank
5！Foundation Preparation and Construction
- Quality Control and Quality Assurance Issues
Preconstruction phase
Construction phase
Acceptance phase
Postconstruction monitoring phase
- Foundation Installation and Testing
Improved-site foundations
Gravity-based foundations
Pinned foundations
Foundation-structure connections
- Underwater Foundation Testing
Small strain integrity testing
Large-strain testing
Load testing
- Long-Term Considerations
Deleterious effects
Foundation behavior monitoring
6！Summary and Conclusions
3！Foundation Site Assessment
- Site and Foundation Selection Process
- Site Assessment and Characterization
Preliminary assessment
Hydrographic surveying and environmental data collection
Geophysical investigations
- Soil and Rock Engineering Properties
In situ methods
Drilling and sampling
Laboratory testing
4！Design Considerations
- Foundation Types
Improved-site foundations
Gravity-based foundations
Pinned foundations
- Foundation Selection Criteria and Design Issues
Selection criteria
Design considerations
Analysis and verification testing
- Quality Control and Assurance Issues
Engineering design phase
Specifications and contract document phase
Recent Corps of Engineers underwater foundation contracts