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Miami-Dade – Design Build of N.W. 7th Avenue

Sanitary Sewer Improvements Phase II Miami-Dade Water and Sewer Department

BFA conducted design and construction of the N.W. 7th Avenue Sanitary Sewer Project Phase II for the Miami-Dade WASD.  BFA supplied all design and construction services to provide a sanitary sewer system to serve all properties along N.W. 7 Avenue from the north side of N.W. 79 Street to the Little River Canal and all properties between N.W. 7 Avenue and the I-95 Interstate to the east between the same north/south limits.

BFA provided all labor, materials and equipment required to complete the sewer system and FDOT roadway construction, testing and certification in full conformance with the WASD-approved design, the FDOT design and the requirements of all specifications and permits.  BFA tested the sewer system and pumping station according to WASD standards and performed all additional work required to obtain results acceptable to the Water and Sewer Department.  BFA also performed all necessary construction of the roadway improvements to the satisfaction of FDOT and WASD.

Project included the installation of 6,500 LF of 8” PVC gravity sewer, 2,800 LF of 8” DIP force main, and a 47 Hp duplex wastewater pump station.  The project was constructed by and FDOT roadway contractor as part of a Joint Project Agreement between Miami-Dade WASD and FDOT.  The FDOT portion of the project consisted of resurfacing and striping of N.W. 7th Avenue.  Approximately 5,500 LF of 8” PVC gravity sewer was designed and constructed within FDOT right-of-way.

 Preliminary Design:

Preliminary design and layout of the gravity sewer system, force main and pump station were developed in accordance with the requirements of Miami-Dade WASD design and construction standards.  Due to the presence of existing 36” – 48” storm sewer in the middle of N.W. 7th Avenue, the gravity sewer layout consisted of parallel gravity sewers on the east and west sides of N.W. 7th Avenue to allow for the installation of sewer laterals to the properties fronting N.W. 7th Avenue.  Development and identification of permitting requirements was provided.

Final Design:

Coordination of detailed survey of the project corridors.  Developed design documents with client review at 50%, 90% and 100% completion.  Plan and profile views were developed identifying critical crossings with existing utility infrastructure, potable water mains, and stormwater drainage systems.

Permitting:

Preparation of permit applications, and supporting documents, response to request for additional information for:  a) DERM – Wastewater Collection and Transmission; b) DERM – Dewatering; c) FDOT – Utility Permit; d) Miami-Dade Public Works – Right of Way Utilization.

Construction Administration:

Provided daily resident inspection:  Attended pre-construction and project progress meetings; reviewed shop drawing submittals; issued instructions, interpretations and clarifications of the construction documents to the contractor; conducted substantial and final inspections; prepared record drawings and DERM certifications of completion.

 

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City of Wildwood – Wastewater Reclamation Facilities

Wastewater Reclamation Facilities – City of Wildwood, Florida

The City of Wildwood, Florida has experienced significant commercial and industrial growth requiring expansion of their wastewater treatment facilities. The City’s influent flow included high strength, non-conventional pollutants and widely varying hydraulic characteristics. BFA was retained by the City to provide planning, design, permitting, construction management and resident observation services for a 2.25 MGD wastewater treatment plant upgrade and expansion and public access reclaimed water facilities. Plant improvements and expansion were completed in two phases with facilities consisting of expanding the wastewater treatment plant operations and maintenance buildings, pretreatment system; flow equalization basin; flow paced variable speed influent pump station; new oxidation ditch and retrofit of existing two ditches to operate in Phased Isolation Ditch process mode (Kruger Process); clarifier; top-feed Dynasand filtration system (first in Florida); chlorine contact tank expansion and ton cylinder chlorination system; reclaimed water pump station; plant SCADA system; administration building; and 16,000 L.F. 16” reclaimed water transmission main.

Reclaimed water application sites for 2.25 MGD capacity consist of irrigation of the Lake Miona Golf Course and a 50 acre Rapid Infiltration Basin (RIB) site. Extensive site specific hydrogeological investigations, including ground penetrating radar and fracture zone analysis, were conducted in conjunction with the design and permitting requirements

Notable Features:

  • Conversion of existing BNR process to three ditch phased isolation BNR process.
  • Non-domestic wastewater characteristics (strength and flow).
  • Filter structure designed to allow for additional modules to be inserted in future as flow increases.
  • Extensive hydrogeological modeling and use of state of the art technology for sinkhole formation potential.
  • Golf course storage pond partially lined to allow for percolation of effluent during wet weather when irrigation is not practiced.
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Ormond Beach – Engineering & Hydrogeological Services

Continuing Engineering & Hydrogeological Services – City of Ormond Beach, Florida

Barnes, Ferland and Associates has been providing environmental engineering and hydrogeological services to the City of Ormond Beach since 1994.  BFA has been a partner with the City in helping to permit, develop and manage the City’s water resources.  Over the years we have provided a wide range of services and projects including:

  • Contamination Assessment Plans and Reports for Four Fueling Facilities and the Nova Road Landfill
  • Division Avenue Wellfield Well Relocation & Rehabilitation
  • Vulnerability Analysis & RMP/PSM Audit
  • Water Supply System Evaluation and Hydraulic Analysis of the Raw Water Transmission
  • 20-year CUP Renewal including groundwater flow modeling, wetlands impact assessment and well evaluations and replacement
  • Hudson and Rima Ridge Wellfield Wetlands Monitoring Program
  • Breakaway Trails Stormwater Supply Irrigation System
  • Tomoka Oaks Golf Course Reclaimed Water Extension / Irrigation Storage and Percolation Ponds
  • Environmental Assessment, closure & replacement of 3 UST’s
  • Effluent Groundwater Monitoring
  • Nova Road Landfill Biennial Monitoring Report
  • Implementation  of New Wetland Monitoring Requirements
  • Rima Ridge Easement Assistance
  • Rima Ridge Wetlands Monitoring Well Replacement
  • Petroleum Cleanup Site Closure Assistance – Sunrise Aviation
  • Petroleum Cleanup Site Closure Assistance – Public Safety and Public Works
  • Installation of Monitoring Wells for Nova Road Landfill Arsenic Monitoring Program
  • Sampling & Reporting for Nova Road Landfill Arsenic Monitoring Program
  • Hydraulic Oil Contamination Assessment
  • Public Works Site – Hydraulic Spill Contamination Assess. & Remediation – Additional Work.
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Continuing Engineering Services – Orange County Florida Utilities

Continuing Engineering Services – Orange County Utilities, Florida

BFA has been providing continuing consulting engineering services to the Orange County Utilities Department since 2001.  BFA was reselected for a fourth time in 2011. The following are some representative projects:

  • CR 535 Water Supply Wells – Design and well construction services for two 1,800 GPM wells and one 1,000 GPM to supply the CR 535 Water Treatment Facility.
  • South Water Reclamation Facility Influent Pump Station and Pretreatment Facilities Rehabilitation – Design and construction services for rehabilitation of the influent pump station, pretreatment structure, aeration basins, and 54-inch influent mains at the 43 MGD South Water Reclamation Facility.
  • South Water Reclamation Facility Supplemental Air System – Study to evaluate and recommend improvements to the aeration system at the southeast basins at the 43 MGD South Water Reclamation Facility.
  • Golfway Blvd. Force Main Replacement – Design and construction services to for 5,100 feet of 12-inch force main by directional drill.
  • B. McLeod Transfer Station Leachate Collection and Pumping System – Upgrade and replacement of the leachate pumping and piping systems for this solid waste transfer station.
  • Conway Hills Water Distribution System Improvements – Design and construction services for 15,900 feet of water main and 3,700 feet of 12-inch force main.
  • Harbor East Pump Station and Force Main – Design and construction services for a new triplex 30 Hp wastewater pumping station including odor control and standby generator, 13,400 feet of 12-inch force main and 1,000 feet of 8-inch and 10-inch sewer.
  • Riverside Acres Water Distribution System Improvements – Design and construction services for 16,500 feet of water main replacement.
  • Constructability Review for the Phase 2B expansion of the Eastern Regional Water Supply Facility Expansion
  • Cypress Springs Wastewater Pump Station Replacement and Force Main Improvements – Design and construction services for rehabilitation of a duplex 20 Hp 660 GPM wastewater pumping station and 2,500 feet of 12-inch force main.
  • Groves Mobile Home Park Wastewater Force Main – Design and construction services for manhole rehabilitation and 1,400 feet of 6-inch force main.
  • Ginn Master Pump Station (Master Pump Station F3067) – Design and construction services for a new triplex 1,700 GPM wastewater pumping station including odor control and standby generator
  • Holden Heights Phase 3 STAG Assistance – Administration of a $450,000 STAG grant for the Holden Heights wastewater system improvements.
  • Lake Lawn Gravity Sewer Rehabilitation – Design and construction services for evaluation and rehabilitation of 9,500 feet of sewer within an existing subdivision.
  • Long Lake/Lake Shores/Wekiva Manor Water Distribution System Improvements – Design and construction services for 9,700 feet of water main replacement.
  • Windermere Area Wastewater Service Study – Study to determine the improvements and cost to retrofit approximately 1,200 existing homes and businesses on septic tank to central sewer.
  • Tangled Oaks Reclaimed Water Main – Design and construction services for 1,000 feet of 12-inch reclaimed water main.
  • Hastings St./Powers Dr./West SR 50 Area Wastewater Service Study – Study to determine the improvements and cost to retrofit existing homes and businesses on septic tank to central sewer.
  • Daetwyler Shores Water Main – Design and construction services for replacement of 1,000 feet of 8-inch water main.
  • Clearview Heights and Westmont Subdivisions Water Distribution Improvements – Design and construction services for 16,200 feet of water main replacement.
  • Summerlake Water Booster Pump Station – Design and construction services for a 4,500 GPM water booster pumping station to address peak demands and fire flows in the County’s Southeast Service Area.
  • NW Water Reclamation Facility Administration Building Masonry Coating System – Evaluate existing failing coating system on the administration building and provide design and construction services for the recoating.
  • Kirby Smith Road Reclaimed Water Main – Design and construction services for 4,300 feet of 12-inch reclaimed water main.
  • Sand Lake Road Wastewater Utilities Relocation – Design and construction services for replacement of 4,000 feet of 30-inch wastewater force main due to conflicts with the road widening.
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Holden Heights

Holden Heights Infrastructure Improvements – Orange County, Florida

Barnes, Ferland and Associates, Inc. (BFA) provided design, permitting, construction management and public information/relations services for the Holden Heights Infrastructure Improvements project for Phases I, II, and III. The central focus of the project was to disconnect and abandon the use of septic tanks and connect residence to the new central sewer wastewater system.

Phase I

  • Phase I included 21,000 feet of 8” to 12” gravity collection system, two (2) lift stations, and 9,800 feet of 8” to 16” force main in an existing residential community of over 450 lots for Phase I. Construction Completion: 2002

Phase II

  • Phase II included approximately 5,760 feet of 12” DIP water main, 4,400 feet of 8” DIP water main, 5,100 feet of 6” DIP water main, +16 miles of 8”gravity collection system, one (1) lift station, stormwater collection system (curb and gutter) and existing road replacement/upgrade in the dense urban Holden Heights neighborhood immediately adjacent to the City of Orlando. Phase II sanitary sewers provided service to approximately 1,200 commercial and residential parcels currently serviced by septic tanks. The BFA team also provided public information and funding assistance services.
  • BFA conducted alternative analysis and preliminary design layout of wastewater collection, transmission and stormwater collection and treatment options for the development of the preliminary design report. Coordination with numerous local government agencies included Orange County Utilities, Orange County Public Works, Orange County Planning, Orlando Utilities Commission, City of Orlando, FDOT, FDEP, SJRWMD, and SFWMD. BFA conducted numerous public workshops to facilitate acceptance of the project and developed estimated construction costs.
  • Stormwater and roadway improvements such as a closed drainage system, new curbs and gutters, new paved streets and stormwater treatment facilities were designed and implemented to address existing drainage problems and to improve Clear Lake surface water quality. Additionally, approximately 3 miles of unpaved roads were paved. Construction Completion: 2006

Phase III

  • This phase included construction of over 24,100 feet of 8, 10 and 12-inch gravity sewer, 17,300 feet of 4, 6 and 8-inch water main, road replacement/upgrade including new curb and sidewalks, and stormwater conveyance and treatment. This phase serves 495 residential and commercial parcels. The BFA team also provided assistance to Orange County in obtaining the grants and SRF funding for the project. Construction of Phase III was completed in 2009.
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Flow Data Quality Improvement for Pumps and Selected Major Gravity Structures

BFA Environmental, (aka Barnes, Ferland and Associates, Inc.) was retained by the South Florida Water Management District (SFWMD) to provide professional services in flow data quality improvement for pumps and major gravity structure, field flow measurements (stream gauging) and levee seepage analysis. This work is directly related and significantly overlaps with similar efforts USACE, Jacksonville District range of hydrology and hydraulic services.

The SFWMD is responsible for managing and protecting the water resources of South Florida, including the Everglades, the Kissimmee River and its floodplain, Lake Okeechobee and South Florida’s coastal estuaries. For this purpose, the SFWMD maintains and operates over 500 hydraulic structures including pump stations, spillways, weirs and culverts. Accurate flow data through these structures are critical for the operation of the system. The SFWMD uses an in-house flow computation (FLOW) program that uses static and dynamic databases and rating equations for computing instantaneous flow values through its control structures. A rating equation is a mathematical relationship between discharge through a structure and instantaneous water elevations upstream (headwater), and downstream (tail water) of the structure, and control information, such as engine and pump speeds and gate openings. Field flow measurements are used to calibrate and validate the rating equations.

In support of the SFWMD’s mission, BFA provided professional services in:

  • Stream gauging with Acoustic Doppler Current Profilers (ADCP)
  • Flow rating equation development.
  • Flow computations.
  • Sensitivity and uncertainty analysis of flow computations, QA/QC of flow and stream gauging data.
  • Embankment seepage analyses.

During the course of this project, BFA successfully:

  • Performed flow measurements with 600 and 1200 kHz ADCPs at pump stations, culverts, spillways and open-channel sites.
  • Analyzed and performed QA/QC of ADCP stream gauging data with WinRiver software.
  • Created and updated on a monthly base a stream gauging needs list for all the SFWMD pump stations.
  • Developed the procedures of flow rating analysis for pump stations adopted by the SFWMD.
  • Applied knowledge of hydraulics and fluid mechanics as well as hydraulic engineering research for developing and testing over 68 equations for pump stations, culverts, and spillways located in the Storm Treatment Areas (STA) and Water Conservation Areas (WCA), Lake Okeechobee, and Everglades National Park.
  • Validated and calibrated rating equations with stream gauging data, using several techniques and tools, such as linear and non-linear regression analysis.
  • Created new algorithms for flow computation through pump stations, which hydraulic characteristics and operation differ from the typical SFWMD pump station.
  • Calculated flows through SFWMD’s pump stations, culverts, spillways and canals.
  • Performed sensitivity and uncertainty analyses of computed flows.
  • Constructed Hydraulic Performance Graphs (HPG) and delivery curves to evaluate the capacity of reaches of the North New River Canal and West Palm Beach Canal for Lake Okeechobee Releases.
  • Prepared over 45 technical documents for the SFWMD.
  • Reviewed and provided technical feedback for the hydraulic and flow measurement aspects of the Intermediate Design Reports of the Cutler Wetlands C-1 Flow Way and the Picayune Strand Restoration Projects.
  • Performed improvements to seepage model related to dam safety.
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US 441 Wastewater Collection System Improvements

Summary of Work:

General Scope of Services:  The City of Belleview wishes to provide sanitary sewer service to commercial businesses along the U.S. 441 corridor from Baseline Road to S.E. 135th Street.  This project will be designed and constructed in phases as funds become available.  This initial phase was to provide preliminary design, final design, permitting, bidding and award services, and construction administration services for the installation of a new duplex pump station, force main, and initial sanitary sewer system.  Ms Malone, PE, as Project Manager, managed the day-to-day activities for this project.

Preliminary Engineering:  Coordinated with City staff and determined projected wastewater flows and pump stations service area characteristics for the entire project.  Prepared a Preliminary Engineering Design Report that summarized analysis and design of the proposed pump stations and future force main and sanitary sewer sizing and route including recommendations and preliminary cost estimates.  For this initial phase, specifically, performed hydraulic analyses of the pump station and force main.

Final Design:  Designed the installation of a 15 HP duplex submersible pump station, 1,620 linear feet of 8-inch force main; 1,470 linear feet of 12-inch sanitary sewer; and 6 manholes.  This pump station was constructed on City of Belleview property adjacent to the City’s wastewater treatment plant in a special flood hazard area subject to inundation by the 1% annual chance flood.  This site was required to have grade changes of approximately 3 feet to meet all City and FDEP requirements.  In addition, provided bidding and award services, which included disbursement of bid documents, responses to RFI’s , and preparation of addenda.

Permitting:  Prepared, submitted, and obtained a Florida Department of Environmental Protection (FDEP) Domestic Wastewater Collection/Transmission System Construction Permit; a Marion County Right-of-Way Utilization Permit; and a Marion County Driveway Permit.

Construction Administration:  Performed construction administration services for the City of Belleview, including shop drawing review, construction inspections, answering RFIs, contract modifications, substantial and final inspections, certification of FDEP and Marion County permits, and preparations of record drawings.