Stormwater Projects

The Engineering Department makes improvements to the storm sewer system to prevent flooding and property damage. Improvements include catch basins, pipes (excluding residential rain gutters and downspouts), sewers, drains, culverts, open ditches, creeks and rivers that carry surface water and unpolluted water.

Projects

Holloway Street Drainage Improvements
Nitrogen Removal BMP Design & Installation
Rattle Snap Court Drainage Improvements
South West Street Drainage Improvments
Stream Restoration Unnamed Tributary to Swift Creek
2011-2012 Stormwater Master Plan
West Cary Stream Restoration Project

Holloway Street Drainage Improvements

Overview

This project focuses on improving the drainage under Holloway Street in the downtown area of Cary. Currently, the existing culvert is undersized for heavy rain events and is allowing water to overtop Holloway Street. This project is citizen initiated and is funded through the Street Storm Drainage Assistance – Public Property Project (Policy Statement 146).

Details

This project will improve the drainage under Holloway Street by adding an additional drainage pipe under the road. The improvements consist of:

Adding one additional reinforced concrete pipe under Holloway Street to improve drainage capacity
Replacing existing storm drainage catch basins
Curb and Gutter Replacement

This project is expected to occur in conjunction with some waterline and sanitary sewer replacement which may affect the project schedule and sequencing.

Schedule
Survey: Winter 2008
Begin Design: Spring 2009
End Design: Summer 2010
Begin Easement Acquisition: Fall 2011
End Easement Acquisition: Winter 2011
Begin Construction: Winter 2011/2012
End Construction: Summer 2012

Contact
Daniel R Clinton, P.E.
Town of Cary Engineering Department
P.O. Box 8005
Cary, NC 27512-8005
(919) 380-2773
dan.clinton@townofcary.org

Nitrogen Removal BMP Design & Installation

Overview

The Town of Cary received a $440,000 grant from the North Carolina Ecosystem Enhancement Program to design and construct nitrogen removal best management practice (BMP) devices along an unnamed tributary to Swift Creek on Town of Cary owned property. These devices, once constructed, will greatly reduce nitrogen intake into Swift Creek and will enhance water quality flowing from and through the TCAP portion of Cary.

Schedule
This project is currently under construction and is scheduled to be completed by May 2012..

Contact:
Michael L. Babuin, Environmental Specialist
P.O. Box 8005
Cary, NC 27512-8005
(919) 462-3931
mike.babuin@townofcary.org

Rattle Snap Court Drainage Improvements

Overview

This project focuses on improving the drainage under Rattle Snap Court in Riggsbee Farms Subdivision. Currently, the existing culvert is undersized for heavy rain events and is allowing water to back on to adjacent properties. This project is citizen initiated and is funded through the Street Storm Drainage Assistance – Public Property Project (Policy Statement 146).

Details
This project will improve the drainage under the Rattle Snap Court by adding an additional drainage pipe under the road. The improvements are anticipated to consist of:

Adding additional drainage capacity Rattle Snap Court through enlarging the existing storm drainage pipes or adding additional pipes

Replacing existing storm drainage catch basins

Curb and Gutter Replacement

Repaving impacted section of roadway

Schedule
Survey: October 2011
Begin Design: October 2011
End Design: January 2011
Begin Easement Acquisition: December 2011
End Easement Acquisition: January 2012
Begin Construction: March 2012
End Construction: June 2012

Contact
Tom Horstman
Town of Cary Engineering Department
P.O. Box 8005
Cary, NC 27512-8005
(919) 462-3932
tom.horstman@townofcary.org

South West Street Drainage Improvements

Overview

This project focuses on improving the drainage under S. West Street in the Russell Hills subdivision. Currently, the existing culvert is undersized for heavy rain events and is allowing water to overtop S West Street. This project is citizen initiated and is funded through the Street Storm Drainage Assistance – Public Property Project (Policy Statement 146).

Details
This project will improve the drainage under the S West Street / Roberts Street Intersection by adding an additional drainage pipe under the road. The improvements are anticipated to consist of:

Adding additional drainage capacity under S West Street through enlarging the existing storm drainage pipes or adding additional pipes
Replacing existing storm drainage catch basins
Curb and Gutter Replacement
Repaving impacted section of roadway

Schedule
Survey: October 2011
Begin Design: November 2011
End Design: December 2011
Begin Easement Acquisition: December 2011
End Easement Acquisition: January 2012
Begin Construction: March 2012
End Construction: July 2012

Contact
Tom Horstman
Town of Cary Engineering Department
P.O. Box 8005
Cary, NC 27512-8005
(919) 462-3932
tom.horstman@townofcary.org

Stream Restoration Unnamed Tributary to Swift Creek

Overview

As part of the on-site mitigation for stream impacts associated with the widening of SW Maynard Road, the Town of Cary is restoring 2,300 feet of degraded channel of an un-named tributary to Swift Creek located on Town property. The channel has been heavily impacted over time by increased impervious surfaces upstream within the watershed and is currently entrenched and over-widened. The channel will be restored through the establishment of a stable channel with pattern, dimension and profile suitable for the valley type, level of development within the watershed and site specific conditions. Approximately 300 feet of stream restoration credits were used to mitigate for the road widening in the first phase of the project. The remaining 2,000 feet of credits will be banked for future use by the Town. These banked credits will save the Town money and help expedite the permitting process for future projects. As part of the phase 2 construction efforts, the Town will be improving the Higgins Greenway trail which parallels the stream restoration project.

Schedule
Phase 2 of this project is currently set for construction to start in the May 2012.

Contact:
Michael L. Babuin, Environmental Specialist
P.O. Box 8005
Cary, NC 27512-8005
(919) 462-3931
mike.babuin@townofcary.org

2011-2012 Stormwater Master Plan

Overview

As a leader in water quality and water quantity throughout North Carolina and in effort to stay in forefront of stormwater management, the Town is undertaking the development of a Town-wide Stormwater Master Plan. This Master Plan will keep the Town ahead of the regulatory and technological curve of stormwater management and set the future direction for the Town’s stormwater program.

The Town is committed to providing a consistent, high level of service to the citizens of Cary. This Plan will provide a method for communicating to citizens the Town’s existing and future approach to stormwater management. The Master Plan will review the history of stormwater management, outline the existing stormwater program, and develop a plan for stormwater management in the future. The Master Plan will focus on water quality, water quantity, and infrastructure assessment. Included in the plan is a determination of finished floor elevations on select structures within the FEMA or Town designated floodplain. This will help the Town determine risk level within these zones.

Goals and Opportunities

The final Stormwater Master Plan will establish specific goals for stormwater management that are applicable over the next five, ten and twenty years. These goals will address water quality and water quantity as it relates to private and public development and infrastructure as well. This Plan will also present a wide range of tools to provide the Town with various methods to meet established goals. All goals and tools will be consistent with the Town of Cary’s Mission Statement and Statement of Values.

This Plan will also look at opportunities to improve stormwater management in the water quality and water quantity areas as well as funding opportunities to assist with stormwater and flooding improvements. Alternative approaches to stormwater management will be explored and presented including recommendations for policy changes, regional detention options and mitigation banking opportunities. Exploration of methods to manage stormwater as a beneficial resource to the Town will be included. Approaches taken by other municipalities which could be incorporated with the existing structure of the Town’s stormwater

Schedule

Project Kickoff July 22, 2011
Complete Departmental and Advisory Board Meetings October 31, 2011
Stormwater Master Plan Public Meeting January 17, 2012 4-7 p.m. at Page-Walker Arts & History Center
Complete Draft Plan March 14, 2012
Receive Comments from Draft Plan April 4, 2012
Recieve Final Stormwater Master Plan May 23, 2012

Master Plan Consulting Team

Michael Baker Engineering:

Scott Brookhart, P.E., Project Manager – Water Quantity and Infrastructure

Kevin L. Tweedy, P.E., Senior Water Resources Engineer

Kimley Horn:

Todd St. John, P.E., Project Manager – Water Quality

Staff Contact

Dan Clinton, Stormwater Engineering Project Manager
Engineering Department
316 N. Academy St.
Cary, NC 27513
(919) 380-2773
dan.clinton@townofcary.org

The Town of Cary welcomes public comment on these projects. If you have any comments or questions, please respond to:

Tom Horstman, CFM
Stormwater Services Manager
Engineering Department
P.O. Box 8005
Cary, NC 27513-8005
(919) 462-3932
tom.horstman@townofcary.org

More Information

The Town's storm water management program includes educational and regulatory initiatives to encourage environmentally sound development.