Daniel Boone - Lawnview Creek I/I Reduction (12326)
As part of a long-term effort to reduce basement backups and sewer overflows, MSD Project Clear is replacing approximately 295 feet of wastewater sewer and disconnecting sources where stormwater and groundwater enter the wastewater sewers (known as inflow and infiltration) from approximately 20 private properties.
About the Project
Project Map - Private Inflow Removal Locations
Project Map - Pipe Replacement
Why is this project being constructed?
MSD is investing $392,000 into this neighborhood with this project to alleviate basement backups and clean up our local waterways.
As part of their evaluation, our team of engineers discovered several places where stormwater was entering MSD’s wastewater sewer system, known as inflow and infiltration. When stormwater enters the wastewater sewers, the pipes can become overwhelmed, increasing the likelihood of backups in homes and businesses and overflows into local waterways. It also reduces the efficiency of the wastewater treatment plants, costing MSD and its customers more money to clean wastewater before returning it to the environment.
To fix this problem, MSD Project Clear is disconnecting sources of inflow and infiltration from 20 private properties. This will reduce the likelihood of basement backups in homes and businesses in this neighborhood.
MSD Project Clear is also replacing a 295-foot section of pipe to add additional capacity to the wastewater sewer system and repairing a broken pipe along Patterson Road.
How will it be built?
MSD’s contractor will put the pipe in by digging through the surface, a process known as “open-cut.”
How will this affect residents?
With any construction, residents can expect to see and hear heavy equipment during the sewer excavation process. The pictures above depict what a neighborhood will look like before, during, and after a typical project.
Customers may experience lane restrictions during working hours. However, MSD will have a traffic mitigation plan to ensure residents have access to homes and businesses, and at least one lane of traffic will remain open at all times.
After the contractor installs all new pipes, they will restore the construction site according to all local and District requirements. This could include sodding disturbed areas, replacing disturbed pavement, reinstalling fences, etc.
At least one MSD Inspector will be on-site part of the day for every day the contractor is working.
When will construction take place?
This is the current tentative project schedule. This is subject to change based on a variety of factors including weather.
- Estimated construction start: Summer/Fall 2023
- Estimated construction completion: Fall 2024
Trees may need to be removed to construct parts of this project. Property owners with trees that will need to be removed that are not located in already existing easements will have been compensated for the removal through the easement acquisition process. If there are good options to avoid removing trees, MSD will make every attempt to do that.
While MSD’s contractor is connecting a home’s lateral to the new wastewater sewer, they may ask residents to limit water use. In general, this process can take between two to five hours, depending on the complexity of the connection. The contractor will notify property owners in advance.
MSD does not anticipate other utility services being disrupted during this project. We will work with Missouri One Call to locate utilities before beginning construction. Occasionally, the contractor may run into utilities that were not located by Missouri One Call which could result in temporary utility disruptions. If this happens, MSD will work with the utility to restore service as quickly as possible.
During active construction, some property owners may experience driveway access restrictions for a short period of time. The contractor will notify property owners in advance of any temporary access restrictions to allow them time to move their vehicles. The contractor will also fill trenches with gravel or place steel plates over trenches during non-working hours so property owners can use their driveways during those times.
The construction timeframe will depend on the type of work taking place on each property, however, MSD anticipates all construction on private properties will be completed within 14 days. Some work required to repair and restore any disruptions on properties is weather or season dependent such as restoring concrete or asphalt or laying sod, which could extend construction time on certain properties.
In general, District policy is to restore affected areas to the same or better conditions than before the project. Streets that are disturbed through this project will be replaced and repaved with similar material. The project’s restoration will meet all local and District requirements.
Most yard areas and unpaved surfaces will be restored using sod, seed, and straw. Driveways, walkways, and other hard surfaces will be restored using the same materials that are currently in place.
Have any more questions? Contact the Project Manager.
This section will be updated as documents become available.
Dave Hasty, PE;
Project Manager, Wood
Jennifer Gerwitz, PE
Project Manager, MSD