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Bath Township Stormwater Drainage Project Status

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April 12, 2010

Spring Valley Culvert replacement

The culvert under Spring Valley Road is believed to be nearly 50 years old and in need of replacement as evidenced by pavement distress over the culvert and a recent sink hole that has developed in the roadway. This culvert is a part of a drainage system that controls the water level in an upstream private pond and supplies water to a downstream private pond. While the township is responsible for the portion of the culvert that crosses under the township road, the private property owners are responsible for upstream and downstream portions of the pipe including the upstream pond control structure. The private portions of the pipe appear to be of the same age as the pipe within the road right-of-way. A cost savings could likely be realized if the private portions of the pipe were replaced at the same time as the township’s pipe under the road, however a construction and cost sharing agreement would be needed. Another option for performing this work would be for the property owners or the township to initiate this improvement as a public project using the county ditch petition process wherein the costs of construction and perpetual maintenance would become the responsibility of the County with the costs being paid by the property owners in the form of an assessment based upon their respective benefits. Due to the current condition of the portion of the pipe within the township road right-of-way, immediate action is required to either repair the existing pipe or replace it. In either event the township should not work on private property nor should the size or location of the pipe be changed without the agreement of the property owners and the approval of the County Engineer. The current configuration of the pipe appears to be adequately draining the area even though preliminary calculations indicate that a new modified design may be both functionally and financially beneficial. Should the township and property owners wish to consider a modified design additional analysis will be required to properly assess the impact on upstream and downstream properties.


Treecrest Drive Drainage

Treecrest Drive is located in a subdivision that was constructed and platted prior to the County regulations requiring property owner assessments for maintenance of stormwater facilities. The streets were laid out with open roadside ditches and driveway culverts with storm drain inlets and pipes strategically placed to intercept the roadside stormwater and convey it to the road right-of-way where it discharges into open channels. A recent inspection of the drainage system indicates that many of the pipes are deteriorated to the point where they need to be replaced. The more serious problems are occurring on private property where the stormwater leaves the road right-of-way and flows along the bottom of steep ravines that have eroded and undercut the adjacent hillside slopes. At one of the discharges the erosion is so significant that after unsuccessful attempts of the township and the County Soil and Water Conservation Service to halt the erosion the property owners employed a professional engineer to prepare a plan and cost estimate to restore the eroded area. Upon learning of the high cost to correct the problem the property owners filed suit against the township claiming that the actions of the township have caused damages to their property. A solution to the stormwater needs of this neighborhood may be for either the property owners or the township to initiate the improvements needed utilizing the ditch petition procedure wherein the construction and maintenance costs are assessed based upon the benefits and the County assumes the responsibility for their construction and maintenance. This office is currently developing a preliminary estimate of cost so that the total magnitude of the problem will be understood.


Smith Rd./San Moritz drainage (Bath Township)

Bath Township has requested the County Engineer to financially participate in the amount of $50,000 in a Fairlawn storm project along Smith Rd. The Smith Rd. storm sewer is under capacity. The San Moritz subdivision storm sewer system is a tributary to the Smith Rd. storm sewer.  The existing Smith Rd. storm sewer, being undersized, acts as a bottleneck to the outlet of the San Moritz storm sewer system during high rainfall events.  The San Moritz subdivision is located within Bath Township.  The subdivision was constructed and platted prior to the County regulations requiring property owner assessments for maintenance of stormwater facilities.  The streets were laid out with underground storm sewers to service, for the most part, street drainage with curb inlets to collect street drainage.  Without maintenance funds to maintain the San Moritz subdivision system maintenance has been minimal.  There have been frequent dwelling and property flooding complaints that could be overcome with a present day storm sewer system design.   The only available solution to the stormwater needs of this neighborhood may be for either the property owners or the township to initiate the improvements needed to utilize the ditch petition procedure wherein the construction and maintenance costs are assessed based upon the benefits wherein the County assumes the responsibility  for the construction and maintenance.  If the proposed Smith Rd. storm sewer was a necessary part of the storm sewer improvements for the San Moritz subdivision; then a portion of the costs of the Smith Road sewer may be allocated to the San Moritz storm sewer assessments.

Last Updated on Thursday, 22 April 2010 13:25