GANNETT FLEMINGPIPELINESEngineering the Future of Collection, Conveyance, Transmission & Distribution

$553+

million in revenue

ABOUT GANNETT FLEMING

top 15 design firms

wastewater treatment plants

top 15 design firms

water treatment and distribution

top 30 design firms

sewerage and waste

design firms dams and reservoirs

top 10

2,500+

Professionals60+ offices

worldwide

100+ yearsof project innovation

shaped infrastructurein more than

65 countries

More Than 100 Years of ExcellenceWe are Gannett Fleming—a 2,500-employee-strong global infrastructure firm with a laser-focus on making our clients successful and sustaining our world. Since 1915, we have been a driving force in the water industry, providing comprehensive solutions that help public and private clients in the municipal, state, and federal sectors address their most pressing infrastructure challenges.

As a mid-sized firm, Gannett Fleming has the depth of staff and breadth of experience to provide you with integrated services for water and wastewater projects of any size, while remaining agile, responsive, and client-focused. With all the resources of a mega firm, in many ways, we are a boutique operation, with expertise in specialty disciplines, such as architecture, civil, structural, geotechnical, hydrogeology, mechanical/electrical, and information management.

Consistently ranked among the nation’s leading water and wastewater design firms, we’re driven to deliver excellence for every client, on every project, every day. We’re eager to put our award-winning project innovations to work for you.

100 YEARS OF EXCELLENCE

DeHart Dam Water Supply PipelineHarrisburg, Pa., Circa 1940

One Water Solutions• Asset management

• Collection and conveyance

• Condition assessment

• Construction management

• Dams and reservoirs

• Environmental resources

• GIS

• Industrial wastewater

• Low-impact design

• Neighborhood improvements

• Nutrient management

• Operations and maintenance

• Program management

• Pump stations

• Reuse

• Security and safety

• Smart water infrastructure

• Storage tanks

• Stormwater

• Transmission and distribution

• Utility master planning

• Valuation and rate studies

• Wastewater treatment

• Water resources

• Water treatment

Fullerton Finished Water Reservoirs3,000 feet of 42- to 84-inch prestressed concrete cylinder pipe water mainsBaltimore County, Md.

EXCELLENCE IN PIPELINES

Buried water and wastewater infrastructure keeps our communities healthy and vibrant and contributes to economic growth. From collection and conveyance to transmission and distribution, utility pipelines are critical infrastructure that support quality of life.

Critical ConcernsAs the backbone of every community, system failures can not only cause unwanted service interruptions, but also costly damage and impacts to human health, the environment, and the economy. Utility owners across the country are facing significant challenges. Aging infrastructure; structural deterioration, tuburculation, and corrosive soils; funding restrictions; lack of public support; and even workforce issues can keep you up at night. Gannett Fleming understands the challenges you’re up against and can assist in navigating these hurdles to achieve your infrastructure goals. Whether modernizing aging assets or upgrading or adding capacity, we can help increase your system reliability.

Creative. Constructible. Solutions.The life cycle of pipeline systems demands careful planning, management, maintenance, rehabilitation, and sometimes replacement to ensure reliable service for your customers, with every turn of the tap and flush of the toilet. The pipelines we’ve designed keep billions of gallons of water and wastewater safely and efficiently on the move in communities across the U.S. each day. Clients look to Gannett Fleming for sustainable pipeline solutions that emphasize cost-effectiveness, and flexible operations and maintenance. Also, as a leading U.S. highway design firm, we understand the important role that transportation agencies and municipal roadway departments play in the success of pipeline projects and are adept at managing those relationships to achieve your project objectives.

Pipeline Solutions

• Planning - Asset management - Alignment studies - Hydraulic modeling and capacity analysis - Condition assessment

• Pipeline design - Sanitary sewer collection/interceptor/force main - Low pressure sewers - Water transmission - Water distribution - Reclaimed water - Bridge crossings - Vault design

• Rehabilitation - Cured-in-place (CIPP) lining - Cleaning and lining (water mains) - Air testing and grouting (sewer pipe joint sealing) - Sanitary manhole rehabilitation

• Trenchless technologies - Horizontal directional drilling (HDD) - Microtunneling - Jack and bore - Pipe busting - Sliplining

• Emergency response - Line stops - Insertion valves - Pressure taps - Temporary bypass systems

We balance cutting-edge technology and innovation with cost considerations to provide pipeline solutions in any subsurface environment. Pipeline project success is measured not only by our team’s technical design acumen, but also our ability to minimize public impacts.

FROM DISTRIBUTION TO COLLECTION

Water SystemsThe lifeblood of your community, clean drinking water must be efficiently, reliably, and safely carried from the plant to your customers. Our integrated approach considers your entire water supply system to deliver optimal transmission and distribution solutions.

Gannett Fleming provides complete system evaluations, including flow, pressure, and water quality testing, condition assessment, and even failure history. We assess distribution system concerns using hydraulic modeling and field analysis to pinpoint and resolve performance challenges, and strategically prioritize water system improvements to ensure you’re receiving the best value for your investments.

When you’re facing rehabilitation, replacement, upgrades, or system expansion, our forward-thinking engineering solutions can help you meet today’s challenges and prepare your utility for the future. We’re experienced in a wide variety of complex projects, including designing and constructing large-diameter, cross-country transmission pipelines and distribution systems within congested urban settings. With expertise in trenchless technologies, we can provide cost-effective, minimally invasive solutions for the rehabilitation of existing infrastructure or replacement.

Named among the nation’s leading distribution design firms by Engineering News-Record, Gannett Fleming can guide your utility on a path to long-term system sustainability.

Sanitary Sewer SystemsMaintaining collection infrastructure is essential to ensure uninterrupted service, prevent unlawful discharge, and plan for future growth. We perform sanitary sewer evaluations that provide clients a thorough condition and capacity assessment of their assets. We employ open-channel flow monitoring, closed-circuit television, smoke testing, dye tracing, and sonar technology, and partner with expert subcontractors to provide lateral televising. Our evaluations remove the guesswork to give you a complete picture of your system, its condition, and any high-priority improvement needs.

When improvements are necessary, we employ a programmatic approach to meet the needs of both densely populated urban and environmentally sensitive rural areas, proposing the most viable system improvements, while considering your fiscal goals. We’ve designed a multitude of gravity and pressure collection systems and thousands of miles of sewer pipelines, including interceptor sewers up to 102 inches in diameter and force mains up to 60 inches, employing open-cut and trenchless installation. Using data analysis and flow modeling technologies, we design combined, sanitary, and storm sewer systems that best manage peak flows.

Our expert staff maintains credentials conferred by the National Association of Sewer Service Companies, with accreditations in Pipeline, Manhole, and Lateral Assessment. This means that your system is in the hands of a team at the fore of industry trends, technology, and regulation.

Carlsbad Desalination Facility Conveyance PipelineOwner’s Representative, San Diego County Water Authority

52,000 feet of 54-inch steel pipeSan Diego, Calif.

The City of Easton’s oldest water mains were made of cast iron and dated back to 1887. Due to their age, condition, and insufficient capacity, replacement was required throughout the city. The Easton Suburban Water Authority selected Gannett Fleming to provide engineering and construction management services for distribution system improvements totaling $7.6 million.

The project was separated into three phases involving the replacement of 23,000 linear feet (LF) of water mains, including 6,225 LF of 24-inch, 550 LF of 16-inch, 9,700 LF of 12-inch, and 6,550 LF of 8-inch ductile iron pipe. The project also included sidewalk improvements and the installation of ADA-compliant ramps. Gannett Fleming provided construction management services throughout the project, including pay estimates, shop drawings, requests for information, value engineering, contractor coordination, and field inspection.

Water Distribution System Improvements

Easton, Pa.

FEATURED PROJECTS

Similar to other U.S. cities more than 250 years old, city records were not available or were incomplete or inaccurate, limiting the team’s ability to determine historic underground utilities and features. Throughout the contract, the contractor uncovered unanticipated structures, including abandoned trolley track and brick culverts, which had to be removed. Gannett Fleming responded quickly to diagnose these situations and determine the necessary design modifications, including revisions to the pipeline alignment and/or grade to allow construction to resume.

Features & Outcomes• New distribution mains improve reliability and

efficiency and reduce water loss.

• Seamless coordination of financing, project schedules, and requirements avoided delays and ineligible costs.

• Service remained continuous throughout construction.

The City of Baltimore’s Outfall Sewershed conveys flow from Baltimore City and Baltimore County to its Back River Wastewater Treatment Plant (WWTP). The trunk lines of the outfall are some of the largest on the East Coast and include two parallel sewer lines: the Outfall Sewer, which is 144 inches by 147 inches, and the Outfall Relief Sewer, which is 120 inches. During dry weather, the Outfall conveys 150 million gallons per day (MGD) to the Back River WWTP. Wet weather flows are considerably greater due to infiltration and inflow (I&I).

Built in 1904, the sewer lines and manholes suffered from degradation and lacked the capacity of modern infrastructure. As well, I&I was taking its toll, costing the city both money and efficiency. Gannett Fleming was selected to evaluate and design improvements for sanitary sewers within the Outfall Sewershed.

Gannett Fleming provided engineering services to evaluate and prepare a design memorandum, conduct CCTV video reviews, evaluate alternative

SC919 Outfall Collection System

Baltimore, Md.

On a consultant evaluation,

Gannett Fleming received the highest

rating of “Excellent” by the City of Baltimore

Department of Public Works.

rehabilitation options, develop contract documents, and provide post-award services for sanitary sewer improvements. Our design services included installing approximately 100,000 feet of cured-in-place pipe lining; performing 78 point repairs; rehabilitating 300 manholes and replacing 19 manholes; replacing 10,000 feet of 8-inch to 24-inch sewer; locating, excavating, opening, and inspecting 150 manholes; performing heavy cleaning and inspection of 7,000 feet of sewers; and reinspecting 92,000 feet of sewers and 1,000 manholes. Hydraulic improvement recommendations included adding a 0.065-Mgal storage tank and upsizing 600 feet of 15-inch pipe, 400 feet of 18-inch pipe, and 1,000 feet of 24-inch pipe.

Features & Outcomes• Trenchless rehabilitation minimized construction

impact on urban environments.

• Increased capacity improved reliability of flows.

• Reduced I&I and sanitary sewer overflows.

The Broad Creek Pumping Station (PS) pumps wastewater to the Piscataway Wastewater Treatment Plant for treatment. In recent years, heavy rainfall caused untreated wastewater to overflow into local waterways. To help mitigate this concern, the Washington Suburban Sanitary Commission (WSSC) called on Gannett Fleming, as part of a joint venture, to design the Broad Creek Augmentation Conveyance System.

Gannett Fleming developed and evaluated pipeline routing alternatives and implemented the final design. The study process involved close coordination with the Maryland State Highway Administration, Prince George’s County Department of Public Works, the Maryland-National Capital Parks and Planning Commission, the Maryland Department of the Environment, and other permitting agencies to determine potential constraints to the suggested alternatives.

Based on the final alignment selection, the project team prepared the design for a new force main, gravity sewer, and pressure sewer from the PS to

Broad Creek Augmentation

Conveyance System

Prince George’s Co., Md.

the WWTP. Also, new headworks and emergency storage at the WWTP and improvements to the PS were designed to increase system capacity. The new conveyance system includes 5 miles of pipeline, sections of which were required to traverse environmentally sensitive areas, as well as National Park Service lands in a historic district. To minimize community and environmental impacts, the project team used microtunneling for 8,700 feet of pipeline.

Features & Outcomes• 21,100 feet of 42- and 48-inch ductile iron pipe

force main and 1,460 feet of 60-inch fiberglass-reinforced gravity sewer.

• Sections of pipeline run through sensitive environmental areas, as well as National Park Service lands in a historic district.

• To minimize impact, 60- to 72-inch microtunnel/jack and bore installation was used, for a total tunneled length of 8,700 feet.

The City of Allentown water system includes more than 240 miles of main, of which 100+ miles is aging cast iron and 60+ miles is more than 100 years old. As part of a 25-year lease agreement, Lehigh County Authority (LCA) assumed responsibility for the replacement of at least two miles of water main per year. LCA retained Gannett Fleming to manage and execute a pipeline replacement program, including pipe prioritization, design, standardization of specifications, permit acquisition, construction management, construction observation, and program management for Cycles 1-6 of this program, totaling more than $20 million over five years.

Using GIS data, Gannett Fleming established an effective pipeline asset management program that identifies the mains for replacement in a given cycle, as well as a five-year projection for upcoming cycles. Data including break history, age, material, and failure impacts was used

Main Replacement Program

Allentown, Pa.

to prioritize the main replacements. Design and bid-phase services for the replacements included coordinating with local utilities and permitting agencies, and developing full bid documents. Cycles 1-4 are complete, with a total of 56,000 LF of 6- to 30-inch ductile iron piping. Cycle 5 is currently under construction and Cycle 6 is in design.

Features & Outcomes• 3D model developed from a paper-based

system helps drive the prioritization schedule and create efficiencies.

• Main replacement scheduled to coincide with projects planned by PennDOT, the City of Allentown, and UGI gas utility to save time and $120,000.

• Effective management and precise design execution resulted in minimal change orders, amounting to less than 1% for the overall program.

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featured in Water Finance & Management

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Gannett Fleming is a global infrastructure firm that provides planning, design, technology, and construction services for a diverse range of markets and disciplines. With 2,500 highly qualified individuals across a global network of 60 offices, we are united in our passion to deliver excellence. We have played a part in shaping infrastructure and improving communities in more than 65 countries, specializing in transportation, earth sciences, water, power, geospatial, and facility-related projects.

Founded in 1915, we embrace sustainability and innovation in our projects and internal activities, achieving results while being responsible stewards of our environment. Our culture of service, ingenuity, and responsiveness empowers us to fulfill our key mission: make our clients successful.

Gannett Fleming is consistently ranked in the top 10% on Engineering News-Record’s Top 500 Design Firms list.

904.490.3103 | water@gfnet.com | gannettfleming.com