Sean O'Neil

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• Coastal and estuary engineering and management 

  Halcrow is a world leader in coastal and maritime engineering balancing the need for providing traditional marine structures with the development of less-intrusive innovative soft engineering solutions.

• United States of America 

  Halcrow has been working for clients in the United States for more than 50 years. With more than 300 staff and close to 20 offices across the country, Halcrow continues to expand across the US.