Sewer Rehabilitation Project

Castle Rock Water staff identifies sewer pipes for rehabilitation based on a history of root intrusion, increased annual maintenance and pipe defects identified by closed circuit televised (CCTV) inspection. Engineering staff develop plans for rehabilitation based on the severity of the defects found.

Cracked pipes can often be repaired from within by pulling a new liner through the sewer pipe. Severe defects often must be dug-up and exposed in order to complete the repairs. Sometimes the pipes are repaired and then lined; lining can extend the life of the pipe for up to 50 years.

During 2016, Castle Rock Water plans to complete sewer pipe lining of old clay pipes in the Castle North and Downtown areas. A project to rehabilitate a number of manholes around Town will also be completed. Look for more information soon.


During 2014, the Castle North neighborhood and several pipes in the Downtown area were the focus of a sewer rehabilitation project to complete point repairs of broken or damaged sewer pipes. Point repairs were completed at 20 different locations. The project was completed by local contractor 53 Corporation at a contract price of $172,000.

In 2013, almost 2 miles of old clay sewer pipe in the Glovers neighborhood was rehabilitated by the in-situ method of cured-in-place pipe (CIPP) lining that can extend the service life of clay pipe by a minimum of 50-75 years. The lining effectively seals joints and is a very effective deterrent to root intrusion. Rehabilitation by the installation of a CIPP liner, before the pipe deteriorates to a failed condition that might require a street-cut to repair, is cost effective, and can be completed with minimal disruption to service and results in less future maintenance. The 2013 project was completed by Layne Inliner, LLC on-time and under budget at a cost of $275,000.

During 2012, a high priority sewer project was completed and several emergency sewer repairs were made. An old 1930s era failing sewer pipe under the railroad tracks at Seventh and the old Front streets was replaced. The project involved the bored installation of 120 linear feet of 20-inch diameter steel pipe followed by the installation of 140 linear feet of new 8-inch PVC sewer pipe and three new manholes. The project required securing a license agreement with the railroad for the new installation. Total project cost was $120,000. Emergency repairs were made at Sixth and Wilcox streets in the Downtown area and near Parson’s Way in Founders at a cost of almost $15,000.

Program cost

The actual cost of this program varies from year to year, but $350,000 is budgeted annually.

More information

Residents are advised to contact Castle Rock Water with any concerns or questions.