Designer: Robbin Bergfors, Natural Resources Group, NYC Parks

Excavated approximately 11,000 C.Y from a phragmites dominated marsh and removed from the site. Excavation was executed under extremely soft soil conditions with the use of Dawson equipment and innovative techniques. Installed upland and marsh plantings.

Designer: Bio-Habitats, Timonium, MD

Design/build project teamed with Bio-Habitats of Timonium, Md. Demolished an old municipal concrete swimming pool, generating approximately 3,000 C.Y. of rubble fill. Rubble fill was used to raise an adjacent ball field area. Approximately 12,000 C.Y. of fill material was excavated and used to cap the concrete fill. This was then re-topsoiled and seeded for future park use. The excavated portion was joined back into existing Meadow Lake, graded and planted to establish a fresh water marsh ecosystem as a wildlife habitat area within the park.

Designer: Louis Berger Associates, East Orange, NJ

Constructed a 10 Acre Salt Marsh as mitigation for the construction of the new section of the Driscoll Bridge over the Raritan River, South Amboy, NJ. Project involved excavation of the existing Phragmites marsh, building two islands with the spoil, and planting a new low marsh dominated by Spartina alterniflora. The islands were seeded with warm season grasses.

Designer: The Louis Berger
Group, Inc., East Orange, NJ

In 2004, the Dawson Corporation was hired by Louis Berger Associates to restore 16 acres of the headwaters of the Peconic River at the Brookhaven National Laboratory. The soils were contaminated over the past half century, and an Environmental contractor was brought in to excavate and remove the contaminated soil. Under Berger's guidance, Dawson salvaged plants from disturbed areas and stored them in makeshift nurseries; later returning them to the site after remediation was completed. The project was accomplished in two phases over two years.