The government and the Central Queens Wildlife Federation-West River Watershed Group have installed a series of environmental controls to address problems from the old Crosby Road in the community.
Robert Vessey, the minister of transportation and infrastructure renewal, says the project will stop the flow of sediment near the West River and protect a natural area.
The government says over years of grading, the roadbed has sunk below its surrounding terrain, which has created a ravine that slopes down towards the river.
That has led to water from the land and natural springs flowing into the river carrying fine clays with it, which turns the water red in heavy rain.
The clay road was once the main route to Charlottetown.
The government says its engineers and crew members from the watershed group constructed nine natural check dams, using logs and brush, across the old road leading to the river.
The dams will help stem the flow and trap sediment running down the road towards the river.
Trees, ferns and wild flowers will also be planted along the old road between the dams to further trap and slow sediment.