AGENDA DATE: 7/1/2015
TITLE:
Title
Carrsbrook Drive Pipe Repair
BODY
SUBJECT/PROPOSAL/REQUEST: Resolution approving a cost-sharing agreement with VDOT to replace an underground pipe and supporting the temporary closure of Carrsbrook Drive (Route 854) during construction
ITEM TYPE: Consent Action Item
STAFF CONTACT(S): Foley, Letteri, Davis, Henry, and Harper
PRESENTER (S): N/A
LEGAL REVIEW: Yes
REVIEWED BY: Thomas C. Foley
BACKGROUND: The upper and lower lakes along Carrsbrook Drive are separated by a dam over which Carrsbrook Drive (State Route 854) runs. Drainage from the upper lake flows through two 42-inch pipes, which serve as the principal and emergency spillways for an approximate 206 acre drainage area. As staff informed the Board last July, these corrugated metal pipes have deteriorated and repairs are needed to restore the integrity of the dam.
At the Board's direction last summer, staff scheduled and oversaw an emergency project to fill and stabilize a sinkhole on the Eastlack property at 210 Carrsbrook Drive. The Board further directed staff to explore longer-term solutions with the Virginia Department of Transportation (VDOT) and neighboring property owners, including the Eastlacks. It should be noted that the area of the project is outside of normal County responsibility.
After discussions with County staff, VDOT has agreed to procure replacement of the failing underground pipe, provided that the County shares equally in the cost of the initial replacement and assumes all future maintenance responsibility for the replacement pipe.
Replacement of the existing pipes would be accomplished by excavating and removing the two (2) existing 42-inch deteriorated pipes and installing a new 60-inch pipe, manhole and riprap outlet channel in its place.
Travel on Carrsbrook drive would be affected during replacement of the underground pipe. VDOT proposes temporarily closing Carrsbrook Drive for 3 to 4 weeks ...
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