Designing Marinas to Mitigate Impacts
The John Wayne Marina was permitted for construction only after certain design features were altered to accomodate major biological and water quality concerns. The moorage basin was relocated...
Perforated Wave Barriers in Small Boat Piers
Perforated breakwaters can be used to reduce the energy and the height of waves entering small boat harbors. By not extending the breakwater to the bottom interference with littoral drift...
Design Concepts for Floating Breakwaters
This paper describes a fundamental approach to the design of a floating breakwater based on the concepts of dynamic analysis of floating bodies. The process results in a relatively simple...
Fisherman's Wharf Breakwater Design and Construction
Fisherman's Wharf Breakwater is a precast prestressed concrete structure presently under construction. It consists of vertical sheet piles braced at the top by batter piles....
Innovative Bulkhead Design: Third Port Project?St. Croix, U.S. Virgin Islands
This paper describes an innovative design making use of a 'master pile' bulkhead to support the waterside rail for travelling container cranes as well as to retain...
Geotechnical Aspects of Waterfront Parks: Case Histories
This paper presents several case histories of waterfront developments, and describes the general approach that the geotechnical consultant should take in the design of these projects....
Innovative Repairs to Steel Sheet Pile Structures
Several unique and many unusual repair techniques have been used to structurally rebuild steel sheet pile walls. An example of a unique repair to a cellular cofferdam utilizing a suspended...
Rehabilitation of Gravity Wharf by Underpinning
The Municipal Wharf at the Port of Providence, Rhode Island, is currently under rehabilitation to accommodate modern trends in marine cargo handling and shipping. The three-phased project...
Port of Kismayo (Somalia) Rehabilitation
Extensive deterioration of the 2070 ft long four-berth, marginal wharf at the Port of Kismayo necessitated a major rehabilitation to maintain operations. The selected scheme was a steel...
Tiebacks for Bulkheads
Tiebacks were once used primarily to support temporary structures such as supported excavations. However, the use of tiebacks has been gradually expanded to include the support of permanent...
National Perspectives and Policy on Nonpoint Sources of Water Pollution
The paper presents the perspective of the Environmental Protection Agency (EPA) on the title subject. It makes the point that while EPA continues to implement the major point source efforts...
Coastal Protection Guidelines, Orange County, GA
As a result of coastal storms in the past several years the County of Orange (California) incurred large and unanticipated costs in providing emergency protection for private shorefront...
Wave Height Distribution in the Coupled Harbor
Wave height in a harbor sheltered by a breakwater is studied by numerical simulation and experiment. The coupled harbor, attained by setting up double arm breakwaters, was adopted as the...
Seattle's Central Waterfront
The character and identity of Seattle are based largely on its extensive waterfront areas. The city has approximately 90 miles of shoreline, one of the benefits of possessing a varied...
Reflections on Racine's Rebound
The existing harbor in Racine has approximately 110 acres of water surface bounded on the north and south side by one-half -mile long concrete breakwaters and on the west by the city....
NPDES Permits for Accelerated Oil & Gas Development
Section 402 of the Clean Water Act (CWA) requires the Environmental Protection Agency (EPA) to develop National Pollutant Discharge Elimination System (NPDES) permits for waste discharges...
The Impact of Selected Sea Level Rise Scenarios on the Beach and Coastal Structures at Sea Bright, N.J.
The physical impacts of selected sea level rise scenarios on the shoreline of Sea Bright, New Jersey, are investigated. The sea level rise scenarios chosen for investigation were developed...
Hammering Out a New RCRA
Recent amendments to the Resource Conservation and Recovery Act (RCRA) add thousands of new waste generators and many new wastes to the list of those to be regulated. Some say RCRA is...
EPA Policy on Auditing for Environmental Results
Last year EPA decided to give environmental auditing a boost by reviewing our compliance and enforcement policies for opportunities to encourage auditing to complement traditional administrative...
EPA Groundwater Protection Strategy Overview
Recently the Environmental Protection Agency (EPA) issued its Groundwater Protection Strategy with the objective to strengthen states' and EPA's programs dealing...
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