CIVIL: WATER RESOURCES

MIDWAY PUMP STATION
Miami, Florida

C3TS designed and permitted a stormwater
pump station and forcemain directionally drilled under the SR 826 discharging to the North Line Canal through an energy dissipating structure and outfall, for
Miami-Dade County.   The pump station
will transmit the runoff collected from the existing collection system to the North Line Canal through directionally bored twin 24-inch diameter carrier pipes in two 36-inch
HDPE casing pipes that cross under
FDOT’s SR-826 Expressway.  
The system was modeled resulting in
collection system improvements to
provide adequate flood protection to the area. 

BELLE MEADE STORMWATER PUMP STATION AND DRAINAGE IMPROVEMENTS
Miami, Florida

Belle Meade is a 45-acre, single
family, residential neighborhood located in the northeastern
portion of the City of Miami
adjacent to Biscayne Bay.  Over the years, problems with the inadequate drainage infrastructure, tidally influenced groundwater, site elevation, and deteriorating streets created a condition of moderate to severe flooding in the area. The City commissioned C3TS to
perform a drainage study and best
alternative drainage solutions for the problems at Belle Meade. The final design would consider the most effective
drainage design, inconvenience during construction, permitting and environmental concerns, effectiveness and reliability,
cost, maintenance, and operation.  The City’s design criteria was that a five-year storm have no ponding and that a ten-year storm have no more that six inches of ponding at the inlets.  As an important step in the design process, an AICPR@ (Interconnected Pond Routing Model) model was developed. The model was run and calibrated based on existing conditions.  Design iterations were then input into the system and evaluated against the City’s design criteria. The final design recommendation was a 120 cfs pump station with approximately 4,000 feet of collection system.

PLANTATION MIDTOWN DRAINAGE IMPROVEMENTS
Plantation, Florida

C3TS was contracted by the City of Plantation to
analyze the drainage system of a 760 acre area known as Plantation Midtown, a mixed use area with Residential, Commercial and Institutional Zoning.  The purpose of the study was to provide a backbone drainage system that would allow future development and redevelopment in accordance with the Master Plan.  The existing system was modeled using ICPR with information from available records and survey of the existing drainage system.  Future development was also modeled in accordance to the maximum development potential of the area.  The study recommends drainage improvements that would allow the future development and creates an integrated system to be easily maintained by the City.  These recommendations were coordinated into current Roadway/ Landscaping Improvements Projects and future CIP projects in order to minimize construction in the area.  The drainage master plan developed in the study and construction plans for specific drainage improvements were permitted through Old Plantation Water Control District, SFWMD and the City of Plantation.

GROVE PARK DRAINAGE & ROADWAY IMPROVEMENTS
Miami, Florida

C3TS was selected to provide all project
management and engineering analysis services necessary for preparing a General Development Report for the Grove Park area in the City of Miami.  The Grove Park project area is defined as the area bounded by NE 7th Street, W. Flagler Street, NW 17th Avenue and NW 22nd Avenue.  The intent of the General Development Report is to evaluate the existing road and drainage conditions, develop alternative improvements
and cost estimates, and to recommend a preferred alternative. The alternatives must be formulated based on comprehensive roadway analysis, drainage analysis, public involvement, and research of existing right-of-way, permits and permit criteria, and
flood complaints.  The roadway analysis
will include evaluation of milling and resurfacing requirements, damaged
sidewalk and/or curb and gutter replacement, ADA pedestrian ramp requirements, and sodding regarding/resodding requirements (for roads within limits of proposed drainage improvements).

CUTLER BAY PAVEMENT & SIDEWALK ASSESSMENT STUDY & REPORT
Cutler Bay, Florida

C3TS performed an inventory and
assessment of the pavement and sidewalk
condition for the entire Town of Cutler Bay.
The project consisted of collecting field data, analyzing data, developing GIS layers, and providing recommendations to the Town.  C3TS created a relational database, using MS Access to digitally store field data in real-time as technicians collected it. The report was used to update the Town’s Capital
Improvement Plan and issue work orders based on priority.

NW 82nd AVENUE DRAINAGE IMPROVEMENTS
Miami Lakes, Florida

C3TS was selected for the design
of approximately 1 mile of arterial road (section line) drainage design including exfiltration trench, positive outfall and beautification improvements.  The beautification improvements included landscaping, striping and irrigation.

NW 82nd AVENUE IMPROVEMENTS
Doral, Florida

C3TS was contracted by the City of Doral
for the design of NW 82 Ave. between
NW 12 St and NW 25 St, which is a four lane divided road way located within the City of Doral’s industrial/commercial area.  Improvements consist of milling and resurfacing, installation of approximate
1500 linear feet of infiltration trench, sidewalks and curb and gutter repairs. 

BASIN 8 DRAINAGE IMPROVEMENTS
Palm Beach, Florida

C3TS was selected to evaluate and
design improvements to the existing D-8 drainage basin in the Town of Palm Beach comprising 250+ acres of residential neighborhood and roadways.  Specific tasks included evaluation of existing basin utilizing ICPR modeling techniques, and full design plans for  basin-wide drainage improvements.  Additional duties included surveying, underground soft-dig utility locates, utility relocation, geotechnical
investigation, and permitting through the
South Florida Water Management District (SFWMD).

BASIN A PUMP STATION
Lauderhill, Florida

C3TS provided engineering and construction administration services for this three-pump stormwater pump station. The project required two 40,000 gpm line shaft axial flow pumps with 145 hp natural gas caterpillar engines and a third pump provided for back ups. Pumps operate in a automatic mode and start when storm stage levels rise. The facility includes a reinforced masonry structure that houses the engines, controls the generator and communications equipment. The project was constructed within budget for $1.5 million.

Included with this project, C3TS prepared the preliminary engineering report. Capacity = 78, 800gpm (175 cfs) @ 7.5’TH (three pumps – 39,400 gpm each, one as backup). Additional services included:

BASIN B PUMP STATION
Lauderhill, Florida

C3TS provided engineering and construction administration services for the design and specifications of a two-pump stormwater pump station. Project required a 44,000 gpm line shaft axial-flow pump with a 145 hp natural gas caterpillar engine and a second pump as a back up. Station operates under an automatic mode. A reinforced masonry structure houses the engines, controls, generator, and RTU, etc. Projected cost $2.3 million.

Included with this project, C3TS prepared preliminary engineering Report.
Capacity = 44, 000gpm (98 cfs) @ 4.5’TH (Two Pumps – 44,000 gpm, one as backup). Additional services included:

HIGHLAND VILLAGE NEIGHBORHOOD IMPROVEMENTS
North Miami Beach, Florida

Highland Village is a residential mobile home park located in the City of North Miami Beach, Florida adjacent to the Biscayne Bay Aquatic Preserve with over 600 low-income residents living in the community. The neighborhood was experiencing septic tank failures due to low site elevations and high groundwater levels resulting in human waste pollution of the adjacent wetlands. C3TS conducted preliminary environmental and hydrological studies, planning, and final design of wastewater and stormwater management systems. Federal funds assisted this multi-phase construction approach in the construction of a wastewater collection and transmission system to replace septic tanks, and an area-wide stormwater management plan that includes overflows to wetlands and excess runoff pumping into surface aquifer wells.

C3TS prepared a NEPA Environmental Information Document to substantiate the need and specify the use of these funds.
The first phase of the stormwater management component includes the installation of 4,500 l.f. of drainage pipes, three stormwater treatment units for separation of solids, and a below-ground stormwater pump station using electrical submersible vertical mixed-flow pumps (2,700 gpm capacity at 18-feet TDH, 30 HP, and abrasion resistant impeller) using 30-inch diameter tube, and discharging to a 24-inch diameter x 200-foot deep well. Stormwater pretreatment consists of solids and sediments separation accomplished by a 6-foot diameter x 16-foot deep stormwater treatment structure that uses gravity, centrifugal force, and separation screens. Oil and grease are also separated hydraulically prior to entering the pump station.

The pump station is controlled via adjustable
floats, an automatic controller with stand-by generator connection capability, and telemetry, which is connected to the City’s system. The City operates a stormwater utility, which is outfitted with portable electrical generators. The pump station can also be by-passed and portable pumps installed to pump directly into the open well pipe, which is connected to an overflow that limits the head of water that can be placed upon the well. The design allows for each pump station to be connected to up to 3 wells via a manifold pipe, allowing each well to be valved off and to either work in parallel or independently from the others.

PUMP STATION D-2
Palm Beach, Florida

C3TS provided Bid and Construction Documents for a new municipal stormwater pump station for the Town of Palm Beach in Palm Beach County, Florida. The project includes preparation of an Engineering Design Report, Drawings, and Specifications. The Station is designed to discharge up to 55,500 gpm (124 cu. ft. per minute) to Lake Worth (Atlantic Intra-coastal Waterway). The Station includes three 18,500 gpm electric, submersible, mixed-flow 200 hp propeller driven pumps within a large reinforced concrete below-ground wet well.