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Andover Road (Phase II) Storm Drainage Improvement Project

Phase I - Andover
Phase II - Vernon
Phase III - Coventry/Tyng

Phase II
The Andover Road Storm Drainage Project will improve storm drainage infrastructure throughout the neighborhood.  Storm water related problems in the area include road flooding, house flooding, and channel erosion.  Phase II includes installing a bypass system from the 2300 block of Vernon Drive to the 1900 block of Vernon Drive (upstream side of the Providence Road Culvert at Briar Creek).  It also includes replacing the culvert at Wrenwood Lane.

Objectives:

- Reduce road and structural flooding.

Andover (Phase II) Map
Cost:  $7,500,000
Please note that this figure includes all costs associated with the project such as planning and design, utility relocation, consultant fees, construction, permits and landscaping.

The Charlotte-Mecklenburg Storm Water Services (CMSWS) project team will manage the Andover Road (Phase II) Project through the phases listed below. Specific work is conducted during each phase while an emphasis is made on public involvement throughout the entire project.

Planning Phase (Completed July 2003) 
Charlotte-Mecklenburg Storm Water Services (CMSWS) worked with The Isaacs Group (Isaacs) to plan the improvements in the Andover Area.  These plans were based on citizen calls to 704-336-RAIN, responses to the neighborhood questionnaire and results of the storm event models performed by Isaacs.  The project team considered numerous alternatives and selected three for detailed analysis.  These three alternatives were: 

  1. Wendover/Chadsford Alternative:  Upsizing the existing system from Vernon to Stonebridge Pond and installing a bypass system from the 2300 block of Vernon Drive to the Wrenwood culvert.
  2. Vernon Detention Alternative:  Creating a detention area adjacent to Vernon Drive on the upstream side of Wendover Road.
  3. Vernon Right-of-Way Alternative:  Installing a bypass system from the 2300 block of Vernon Drive to the upstream side of the Providence Road culvert.

The advantages and disadvantages of each alternative were evaluated.  Factors included:  hydraulic design, permitting, constructability, geotechnical concerns, water quality, neighborhood impacts, maintenance, safety, and cost.  Results of the planning phase were presented to the neighborhood at a public meeting held on March 31, 2003.  The Vernon right-of-way alternative was selected as the preferred alternative. 

Design Phase (Completed April 2004)
The portion of Vernon Drive located north of Wendover Road is on Charlotte Department of Transportation's (CDOT) sidewalk list.  In an effort to coordinate City projects and minimize disruptions to the neighborhood, CDOT agreed to fund the installation of sidewalk along one side of the roadway as part of this project.
 

During the design phase, the project team collected additional survey, utility, and geotechnical information needed to design the Vernon right-of-way alternative.  The team completed 70% design plans prior to starting easement acquisition.  A public meeting was held on November 4, 2003 to share the 70% plans with the neighborhood and begin the easement process.  Final design plans and project specifications were completed during the easement acquisition process.

Permitting Phase (Completed May 2004)
During the permitting phase, the required water quality permits were obtained from the U.S. Army Corps of Engineers and North Carolina Department of Environment and Natural Resources (NCDENR) Division of Water Quality (DWQ).  An encroachment agreement was obtained from North Carolina Department of Transportation (NCDOT) for proposed work at Wendover Road. 

A soil and erosion control permit was obtained from NCDENR Division of Land Resources.  A floodlands development permit was obtained from Mecklenburg County Storm Water Services.  The Charlotte Zoning Board of Adjustment granted a variance to allow excavation of soil and placement of rock within the floodway. 

Property Easement/Acquisition Phase (Access completed September 2004)
This phase was kicked-off with a public meeting held on November 4, 2003.  The City's real estate staff worked with property owners to acquire Storm Drainage Easements (SDEs) and temporary construction easements needed to construct the project.   

Bid Phase (Completed July 2004)
During the bid phase, the final plans were circulated to qualified contractors for a competitive bidding process.  By state law, the lowest responsible bidder is awarded the construction contract.  City Council awarded the contract to Sealand Contractors (Sealand) on June 28, 2004.

Construction Phase (Completed March 2006)
CMSWS issued notice-to-proceed to Sealand effective September 7, 2004. Construction started at the vacant lot at the corner of Providence Road and Vernon Drive. Work  proceeded from the vacant lot up Vernon under Wendover Road and through the 2300 block of Vernon Drive.

Project Team

Kate Labadorf, P.E.
City Project Manager
704-336-3653

 

Gary Stansbury
City Construction Manager
704-336-2667

Matthew Gustis, P.E.
City Engineering Team Program Manager
704-336-6183