Designed 2006-2007 in the City of Mebane, just north of I-85/40 off of Mebane Oaks Road for Stokes Land Group. Construction started in 2007 and continuing.

Multi-phase site with 212 Acres of Mixed Use (Residential-Arrowhead Greens Subdivision, Multi Family- Carden Apartments (by others), Commercial/Retail- Tanger Outlets (by Others), Medical- Alamance Regional Medical Park (by Others)).

Streams, wetlands, and water quality issues were a tremendous first obstacle with the development. There were three ponds and three streams wandering thought the site. There are 3 stream crossings and a 110 Foot long Conspan bridge was installed to avoid exceeding the 150 Linear Foot limit on the removal of perennial streams. Also, all three ponds were submitted for hazard classification with one pond being permitted for breaching because of it's high hazard classification.

The Erosion Control plan consisted of 10 phases because of the complexity engendered by the three streams.

Four wet detention basins were constructed to treat storm water runoff from the site.

Civil Construction cost total - $6,000,000

In September of 2009, Winston Salem Forsyth County Schools began construction on the Carter School site on Highland Avenue in central Winston Salem. The Carter School site is approximately 15 acres on the site of the existing Kennedy Middle School.

The first phase of the project includes the Carter Special Education High School. The next phase will include the Vocational Career Center and Career Tech Buildings. Following construction of all phases two-hundred thousand square feet of classroom space will have been constructed on the site, along with required parking and drives.

The project will also include development of an adjacent offsite area for parking. The project will increase the built upon area on the site from 20% to 60%. The City of Winston Salem post-construction stormwater ordinance requires detention of the increase in runoff volumes following development. It also requires stormwater treatment for new built upon area.

DMP developed a system of underground sand filters and storm water detention devices to best utilize the limited space availabe on the Carter School Site.

The Carter School Stormwater system has the following design characteristics:

• Area Treated - 21.66 Acres
• Pre-Development Built Upon Area - 20%
• Post-Development Built Upon Area - 60%
• Detention Volume Provided - 80,000 Cubic Feet
• Sandfilter Surface Area - 3000 Square Feet
• Construction Cost - $1.8 Million

Davis-Martin-Powell and Associates provided complete planning, design and construction administration services for the Deep River Outfall Segment 2 Sewer System Improvement project.  This $11.9 million project replaced approximately 2.5 miles of a 12 mile existing major outfall, which serves the eastern portion of the City of High Point.

Project Highlights

• 3,700 linear feet of 54- to 66-inch sanitary sewer at depths up to 60 feet
• 1,400 linear feet of tunnel, installed via hand-mining and TBM (tunnel boring machine)
• 650 linear feet of tunnel installed to avoid impacting an environmentally sensitive area
• Approximately 74,000 cubic yards of rock excavation required
• Allowed for the removal of 4,500 linear feet of existing aerial sewer

The Deep River Outfall replacement project is phased in 6 distinct segments.  Segments 1-4 have been constructed, with Segments 5 & 6 slated to begin construction within the next 12 months.

Davis-Martin-Powell has been hired to coordinate, develop, design and oversee construction of the City of Dunn’s Downtown Revitalization Plan

The initial planning Project includes all aspects of downtown infrastructure:

• Streets
• Sidewalks
• Parking
• Facades
• Water
• Sewer
• Stormwater
• Signalization
• Power

DMP has assisted with securing funding for this $4,500,000 project.
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In 1997, Davis-Martin-Powell was selected to perform a wastewater Planning Study for the City of Winston-Salem. The goal of this study was to analyze existing sewer infrastructure in the Deep River and Abbotts Creek sub-basins and develop a 25-year plan to provide for future growth.

This Study evolved into a 201 Facilities Plan Amendment and Environmental Assessment. The Town of Kernersville was then able to obtain $7.5 million in low-interest loan funds for their portion of the $10.4 million project cost.

In 2002, the City of Winston-Salem selected DMP to prepare construction documents to relocate the existing Deep River Pump Station. The location of the relocated pump station was chosen to provide service to an area bordered by Interstate 40, Highway 66 and the Guilford County Line, based on the sewer Master Plan developed by DMP.

The new Deep River Pump Station is a duplex submersible design, with a firm capacity of 1,250 gpm (1.8 MGD). The station was designed with variable frequency drives (VFD’s) and ultrasonic level sensor to provide the City with the capability of handling existing flow conditions and higher future flow conditions. Site topography and proximity to an existing stream (falling within the Randleman Buffer Rules) dictated creativity in design, including extensive erosion controls, an access drive with a large box culvert, and a segmental retaining wall. The line work included 7,600 LF of 12” forcemain, 4,000 LF of 8” gravity sewer, and approximately 13,600 LF of 12”-18” gravity outfall.

This $2,800,000 project was bid and constructed as part of a State Revolving Loan Fund project between the State, the Town of Kernersville and the City of Winston-Salem. The new Deep River Pump Station, forcemain, and accompanying three (3) outfalls were completed and placed into service in Summer 2005.

Civil Engineering design services for a 91.93 acre site adjacent to Fairfield Road; Surratt Drive and Eden Terrace. The development included grading, utilities, topo, watershed detention ponds, storm drainage, parking areas and roadway coordination with NCDOT to accommodate a new 275,883 S.F. manufacturing facility loading docks, and support areas. Site surveying and mapping was also a part of this project together with preparation of contract documents.

Polo’s worldwide distribution facility occupies 69.5 acres in High Point, North Carolina. The 389,000 square foot expansion involved approximately 25 acres of that property, with a civil construction cost of approximately $3,000,000. New and reconfigured parking areas comprised approximately 6 acres.

Wetland and water quality issues were a tremendous first obstacle with the expansion and we had to make presentation to the State of North Carolina Environmental Management Commission in order to exceed the 150 LF limit on removal of perennial stream. Mitigation involved a DWQ-quality wet detention pond. We were successful and received project approval from EMC at our first hearing.

Subsequent projects in 2001 and 2002 included design, permitting, construction administration, and management of a permanent access road to Tarrant Road. Controlled access installations, including two additional guard shacks, were also added at this time.

Davis-Martin-Powell continues to assist with further expansion of Polo’s loading dock area, as well as to inventory all their parking lots, make maintenance recommendations and provide renovation documents.

DMP is proud to have assisted Polo in the expansion to their current 1.10 million square-foot facilities in Piedmont Centre.

Davis-Martin-Powell & Associates provided complete planning, design, and construction services for the expansion of the Ward Water Treatment Plant. This $10.7 million project increased treatment capacity from 16 MGD to 32 MGD and was completed in 1999. The facility treats water from Oak Hollow and City Lake and provides finished water to citizens of High Point, Archdale, Jamestown and surrounding areas.

The expanded water treatment facilities include:

• Aerated rapid mix basins
• 32 MGD Superpulsator® upflow clarifier
• 8 high rate, dual media filters with air scour
• 32 MGD transfer pumping capacity
• A 10.0 MG prestress concrete clearwell
• Two 16 MGD, 900 HP variable speed high service pumps
• Two 8 MGD fixed speed high service pumps
• Chemical feed systems (alum, caustic, powdered corrosion inhibitor, and fluoride)
• Hypochlorite feed and storage facilities
• Powdered activated carbon silo and feed system

Hypochlorite is used as the primary disinfectant and ammonia is available to reduce disinfection byproduct formations.

The design also includes a PLC based distributed control system (SCADA) to allow central operation and monitoring of the plant processes and equipment.

Other improvements included a 6,000 square foot maintenance facility, office renovations, and additional laboratory facilities.

Steeplegate Subdivision in Randolph County originated in 1995, shortly before the City of Trinity was incorporated.

Civil Design consisted of 5.7 miles of streets, water supply, storm drainage, erosion control for 268 single family residential lots covering over 350 acres. Several manmade ponds were constructed for stormwater control as well as community aesthetics. Special attention was placed on the main entrance as well as site grading for the individual lots.

Steeplegate has become one of the premier subdivisions in the area.

Davis-Martin-Powell has assisted Moses Cone Health Systems with expansion projects since 1998, and has provided planning, design, and construction administration on several different projects and sites.

DMP provided Site Development services for the new Main Hospital Entrance and a new Cancer Center, shown above. The Hospital Main Entry Addition increased the Hospital area by 9,340 square feet.

The Cancer Center is a 63,000 square foot, two-story clinical treatment center with the potential for a third story addition.

The Wesley Long Hospital Campus covers 25 acres. The site redevelopment associated with this project involved reconfiguration and additional parking on the western 9 acres of the campus, including a new signalized entrance off West Friendly Avenue at North Lindell Road.

A major feature of this project included the construction of a 15 foot high segmental retaining wall with a vehicular / pedestrian barrier parapet to preserve the natural area in front of the Cancer Center.

Another segmental retaining wall was placed along North Buffalo Creek to maximize parking opportunities in the western portion of the site. The project also improved parking lot circulation and pedestrian access.

DMP has provided engineering services for the Beech Mountain Water and Sewer Systems since construction started in the early 1970's by the Carolina Caribbean Corporation.  The system was later operated by the Beech Mountain Property Owners Association, and then became public with the incorporation of the Town of Beech Mountain in the 1980's.

DMP has performed over 40 engineering projects for the water system since our inception in 1965, ranging from small water line extensions to construction of a new Buckeye Lake and the water treatment facility.

The Buckeye Water Treatment Plant is a 1.0 MGD high rate water filtration plant, utilizing Neptune MicroFloc components and consisting of the following treatment processes:

• Sedimentation basins with tube settlers
• High-rate multi-media filters
• 300,000 gallon finished water clearwell
• High service pumps
• Liquid chemical feed systems for alum, caustic, and corrosion inhibitor
• Gaseous Chlorination System
• Gaseous Ammonia System

The facility includes a Raw Water Pump Station with passive wedge wire drum screens and submersible pumps.
 
The WTP treats water from Buckeye Lake, a manmade impoundment designed by DMP with a storage volume of approximately 50 MG.

The WTP and Lake were constructed in 1984 for a total project cost of approximately $2,700,000.   Since the Town of Beech Mountain is a major tourist attraction, the operation of the plant varies seasonally.  The plant has consistently produces high quality water, despite the changes in raw water quality and varying demands.

The distribution system is a multi-pressure zone system, ranging from elevation 3,700 to over elevation 5,400.  The system consists of six booster pump stations, seven ground storage tanks, and three pressure-reducing stations.

Complete civil engineering design for two new public middle schools and high schools. Each site was approximately 100 acres. Project included a 4000 seat stadium athletic facility, turn lanes, and utility infrastructure design. The Porter Ridge school also included an elementary school.