Wastewater Manhole Replacement Program

This program was created to ensure the replacement of all manholes within the Milwaukie Sewer System over the period of 150 years. Based on an estimated replacement cost of $4,000 per manhole, the cost to replace all manholes system-wide is $7,436,000. This spread over 150 years equates to $50,000 per year. This annual program budget will allow for the replacement of approximately 13 manholes per year. In the case of a manhole having satisfactory structural integrity, manhole rehabilitation (i.e., manhole lining or grouting) will be done in lieu of full manhole replacement. Manholes to be replaced or rehabilitated will be identified by the Engineering Department and Operations Wastewater Department.