NEWS
FIDALGO BAY EELGRASS MITIGATION PROJECT
Anacortes, Washington
The Port of Anacortes Fidalgo Bay Habitat Improvement Project received the 2008 Environmental Improvement Award from American Association of Port Authorities (AAPA).
The Port of Anacortes is one of the largest commercial shipyards in the Puget Sound, and July 2008 marked the start of the redevelopment of the facilities main terminal, Pier 1. Critical to the redevelopment was the removal of the eelgrass beds and critical aquatic habitat within the areas that were to be dredged, and relocating the eelgrass to a safer location, so that the species that live within can survive.
Coast & Harbor (CHE) was responsible for analyzing the Port’s proposed dredge area to determine suitability of the material in the construction of the mitigation site, designing the mitigation site cross sections, and the sequence of construction. CHE conducted wave and tidal modeling to assist in locating the appropriate location as well as for refining the deign concept for stability and eelgrass propagation. CHE also developed construction cost estimates for various dredging disposal and mitigation site fill alternatives.
PORT OF BREMERTON BREAKWATER PROJECT
Sinclair Inlet, Washington
The Port of Bremerton Breakwater Project received the 2007 Seattle Section Local Outstanding Civil Engineering Achievement Award from American Society of Civil Engineering (ASCE).
Coast & Harbor Engineering, Inc. determined the cause of wave penetration into the marina to be ferry wakes, and developed breakwater concepts that would mitigate wave impacts to acceptable levels. CHE developed a preferred floating breakwater concept and performed physical and numerical modeling to verify its dimensions and performance, and determine mooring forces.
CLICK HERE to learn more about the Port of Bremerton Project.
OLYMPIC SCULPTURE PARK PROJECT
Seattle, Washington
Received the 2008 GOLD Award in the Environmental Category from American Council of Engineering Companies (ACEC).
Received the 2008 Top Restored Beach Award from American Shore and Beach Preservation Association (ASBPA).
The goal of this project was to create an urban oasis of aesthetic and natural beauty and environmental function at a former industrial site north of Pier 70 at the Seattle waterfront. Coast & Harbor Engineering provided coastal engineering services, numerical modeling, engineering analysis, and assistance with the design and construction management of the shoreline restoration component.
CLICK HERE to learn more about the Olympic Sculpture Park Project.
CHE AND TEAM PARTNERS AWARDED EU GRANT TO CONDUCT LARGE-SCALE PHYSICAL MODELING IN GERMANY
Coast & Harbor Engineering, teaming with University of Rome (Italy), University of Bologna (Italy), and University of Edinburgh (UK), has been awarded a grant from the European Union to conduct large-scale physical modeling at the largest-scale hydraulic facility in the world, in Germany. Coast & Harbor staff will perform the physical modeling and data analysis to more accurately describe wave forces on over-water structures such as bridges and piers during extreme events (tsunami, hurricanes, etc.). The results are expected to assist Coast & Harbor’s clients by providing design methods more accurate than are presently available in the industry.
MUKILTEO BEACH RESTORATION PROJECT
Mukilteo, Washington
The Mukilteo Beach Restoration Project, designed by Coast & Harbor Engineering and constructed by the Port of Everett in 2005, received 2007 Environmental Improvement Award from American Association of Port Authorities (AAPA).
To offset potential impacts of new pier construction in Everett, Washington, the Port of Everett restored approximately 1,100 feet of shoreline habitat in an area where existing infrastructure precludes re-establishment of natural processes. Through addition of sediment, this project has created a more natural beach profile with a beach face, storm berm, and backshore, waterward of the rock bulkhead that supports the BNSF railroad. Physical monitoring has shown that the 335-m pebble/sand beach constructed near Mukilteo has responded to the ambient wave environment as much as predicted through two winters. Biological monitoring has shown a high level of biological activity by juvenile salmonids and forage fish. One judge called the project "a big step in mitigation that will pave the way for a lot of future improvements."
CLICK HERE to learn more about the Mukilteo Beach Project.
