A months-long project to improve conditions at Keystone Harbor is scheduled to wrap up next week.

The U.S. Army Corps of Engineers on Monday will survey the results of a dredging project to see if American Construction of Tacoma has met the terms of its contract.

The Corps of Engineers paid the construction company more than $800,000 to dredge the small harbor to restore its depth to 25 feet.

Keystone Harbor is a difficult entry way for ferries to navigate and groundings have taken place over the years. Washington State Ferries only has three vessels capable of navigating in and out of the tiny harbor.

Workers have been busy during the evenings scooping sediment from the harbor floor. That sediment is transported to the nearby park and is used to “renourish” a beach that officials say has been eroding.