Mason - North Island Drive - Culvert Replacement
Project Number: 2311
From milepost 3.46 to milepost 3.47
RATA Funds: $555,500
Legislative District: 35
Status:
Date Approved: 2017
The existing passage consisted of a 3' concrete culvert that was fully submerged at the outlet, except during extreme low tides. The project reduced the maintenance costs of clearing wooden debris from the inlet and environmental impacts associated with the existing restricted culvert.
This project removed a tidally influenced constricted flow path under a roadway that serves the northern peninsula of Harstine Island and Jarrell Cove State Park. The roadway section included 0.83' CSBC, 0.33' CSTC, and paved with 0.33' HMA.
This project removed a 3' concrete culvert and replaced it with a twelve-foot diameter aluminum structure. The full roadway width was increased from 20' to 24', to accommodate traffic and allow for guardrail. New paved shoulders for vehicle recovery area and pedestrians were added as a traffic safety enhancement.
This project removed a tidally influenced constricted flow path under a roadway that serves the northern peninsula of Harstine Island and Jarrell Cove State Park. The roadway section included 0.83' CSBC, 0.33' CSTC, and paved with 0.33' HMA.
This project removed a 3' concrete culvert and replaced it with a twelve-foot diameter aluminum structure. The full roadway width was increased from 20' to 24', to accommodate traffic and allow for guardrail. New paved shoulders for vehicle recovery area and pedestrians were added as a traffic safety enhancement.