Manson Construction

Committed to the Environment

Source: MarineTraffic.com – Density Map of Live Marine Traffic in the U.S. on August 16, 2017

According to the U.S. Bureau of Transportation Statistics1, in 2010, over 62,000 vessels—about 172 a day—called at U.S. seaports, transporting goods from around the world. Water transportation contributed $36 billion U.S. dollars and 64 thousand jobs to the U.S. economy in 2010

Finding A Better Way

Manson is firmly committed to preserving and protecting the nation’s waterways and keep the economy growing. Manson builds wharves, piers, bridges, outfalls, and performs heavy lift operations. Our dredging services include remedial and environmental cleanup (CERCLA Superfund cleanup), beach renourishment, maintenance, transitional and channel deepening services. As operators of ocean-going vessels, we have a responsibility to operate safely and minimize our footprint in the performance of our work. We take that responsibility seriously.

To further this commitment, Manson has implemented corporate Environmental, Health and Safety (EHS) policies and programs aimed at reducing our impact to the environment. Since we perform in-water and over-water work, nearly every project we do is inherently in an environmentally sensitive surrounding. Manson incorporates principles of environmental quality management in all of our work plans and quality control programs. A large majority of our projects involve maintaining water quality standards, implementing sediment and erosion control measures, the use of turbidity curtains to minimize the impact of in-water work, adhering to in-water windows, and responsibility for protecting natural habitats and wildlife, such as marine mammals, turtles, birds, and sea-grass in order to comply with permits issued by a wide variety of state and federal agencies.

Fleet Upgrades | Manson’s vast and efficient fleet of marine equipment includes electric dredges and derrick barges that comply with the strictest emission regulations. We continually strive to stay ahead of air quality regulations by updating our equipment with the latest technology. Over 60% of the equipment in our fleet has been repowered with more environmentally conscious technology.

Oil Spill Prevention Program | All of Manson’s fuel carrying vessels are equipped with spill kits and all employees are trained in spill prevention and spill containment measures in compliance with United States Coast Guard regulations. Manson regularly participates in the United States Coast Guard’s Oil Spill Response Organization spill responder exercises conducted throughout the country. Manson’s combined marine equipment fleet has a total fuel capacity of nearly two million gallons. Most of our equipment uses readily biodegradable hydraulic oil, which means that they have the natural ability to biodegrade to their natural state. This is not a requirement of all of our vessels – and it not the “cheapest” way to go – we choose to use this environmentally responsible product in our equipment because it’s the right thing to do for the environment, while also giving maximum protection and performance for our equipment.

Best Management Practices | Heavy civil marine construction and dredging involves adhering to stringent requirements set forth under the regulation of federal agencies such as the EPA, U.S. Coast Guard, and state and local environmental agencies. Manson has developed a number of proven Best Management Practices (BMPs) specifically for this line of work. Such examples includes BMPs for sound attention techniques (e.g. use of bubble curtains), deploying silt curtains and using specially equipped environmental buckets for clamshell dredging to minimize turbidity and the disturbance of bottom soil sediment in the water.

Workforce Training | Manson has substantial experience conducting CERCLA remedial actions for contaminated sediments. Our workforce receives 40 hours of HAZMAT training and requisite refresher and supervisory training for working with hazardous materials and contaminated sediments.

Advocacy | Manson also regularly contributes to the study and science of how to “find a better way” to do the work we do. We contribute to research and industry white papers. Manson is proud of the work we do with coalitions and associations through active membership or through sponsorship, who share our commitment to corporate responsibility and environmental stewardship including:

Western Dredging Association (WEDA)

American Association of Port Authorities (AAPA)

California Marine Affairs and Navigation Conference (CMANC)

ISNetworld (ISN)

Bay Planning Coalition

Environmental Coalition of South Seattle (ECOSS)


1 Source: U.S. Bureau of Transportation Statistics