Alternative Delivery Track Record

JMT excels in building strong partnerships with contractors and connecting with federal, state, and local owners. Our mission is to streamline project design, environmental, and permitting processes, reducing risks for all stakeholders. We offer innovative solutions that meet project requirements and allow for early construction starts. As a proud member of the Design-Build Institute of America, our award-winning solutions improve design efficiency, reduce costs, incorporate sustainability, and provide the best value to owners.

Wastewater Treatment Facility On-Call Contract

Location​: Washington, D.C.
Client​: DC Water

Under our current facility design contract, our design team is working closely with DC Water’s on-call contractor pool to expedite construction by facilitating the pre-purchase of long-lead items for five stormwater pumping facilities.

JMT executed comprehensive civil, mechanical, and structural engineering design, alongside topographical surveying and permitting, for the modernization and replacement of pumps, piping, electrical systems, instrumentation, and HVAC systems to ensure five stormwater pumping stations complied with DC Water’s standards. Given the critical importance of the 14th Street Pumping Station, where past failures have left motorists stranded for several hours at the underpass, construction for this station has already been completed. JMT also provided construction phase services. The 14th Street Pumping Station is an underground facility housing three vertical dry pit pumps with an approximate capacity of 25 MGD. Positioned adjacent to East Potomac Park, a property managed by the National Park Service (NPS), access to the pumping station is often restricted by the Park Service, particularly during events like the Cherry Blossom Festival. JMT collaborated closely with NPS to secure necessary approvals and permits.

Back River Wastewater Treatment Plant Headworks Improvements and Wet Weather Flow Equalization CMAR

Location​: Baltimore, MD
Client: City of Baltimore Department of Public Works

JMT delivered this award-winning CMAR project to improve the Back River Wastewater Treatment Plant (WWTP) and reduce pollution and meet intense Consent Decree deadlines.

The Back River WWTP (180 MGD average daily flow) is the largest wastewater treatment plant in Maryland, with a peak flow capacity of 469 MGD. Serving more than 1.3 million residents, the Back River WWTP impacts the upstream conveyance system with hydraulic restrictions at the headworks of the facility. To comply with the EPA/MDE Wet Weather Consent Decree to eliminate sanitary sewer overflows (SSOs), the City of Baltimore selected JMT to design improvements that reduced the hydraulic limitations with the design of one of the largest wastewater pumping stations on the East Coast at 800 MGD capacity, a 600 MGD Fine Screen Facility, a 600 MGD Grit Removal Facility utilizing state of the art traveling bridge grit removal system, and two 18-million-gallon wet weather storage tanks.

JMT worked collaboratively with the CMAR to deliver more than 1.5 million worker hours to complete $430 million of new construction in 48 months for this project. The construction timeline spanned Baltimore’s wettest year on record (2018), City government ransomware attack (2019), and COVID-19 pandemic (2020), which combined to create a unique confluence of challenges that the team addressed collaboratively while maintaining the tight project schedule to meet the City’s consent decree deadline.

Flood Reduction Pumping Station Progressive Design-Build

Location​: Alexandria, VA
Client​: City of Alexandria Department of Public Works

This progressive design-build Project aims to provide a long term solution to reduce nuisance flooding from heavy rainfall, tidal backflow, and Potomac River overflows, preserving public use and enjoyment of Old Town Alexandria’s historic waterfront.

The City of Alexandria is proposing to implement a flood mitigation plan within the waterfront area of Alexandria from Oronoco Street to Duke Street, including Founders Park, Waterfront Park, and Point Lumley Park. Implementing enhancements to the civil infrastructure would decrease the frequency and duration of flooding events, thereby reducing damage to residences, businesses, public spaces, and infrastructure within portions of the historic waterfront district of Old Town Alexandria. JMT is the lead designer and plays a key role in the pumping station design and layout, as well as NEPA permitting support for the NPS. At this point in the project, several alternatives for design implementation are being explored. The ultimate project may include the following:

  • Shoreline treatments including rip rap, structural bulkheads, and natural shorelines
  • Improvements to the waterfront promenade
  • Storm drainage improvements including new/upsized inlets and piping, and the addition of underground detention in parks
  • Construction of a pump station or pump stations
  • Park improvements/enhancements
  • Streetscape improvements along King Street

Sharon Hill Flood Relief Pump Station Design-Build

Location​: Delaware County, PA
Client: Southeastern Pennsylvania Transportation Authority

This project is part of the Southeastern Pennsylvania Transportation Authority’s (SEPTA) Infrastructure Resilience Program. The goal of the Program is to improve the resiliency of SEPTA’s facilities within the project limits, specifically related to the maintenance of operations and service during storm events.

A low point for a 48-acre drainage area exists along the SEPTA right-of-way, causing frequent flooding during storm events and rendering the Route 102 tracks non-operational, which significantly impacts SEPTA service. To address this issue, JMT designed a stormwater pump station with a maximum capacity of 88 MGD. The pump station includes three 150-horsepower pumps and one sump pump. Electrical equipment was installed on the roof of the pump station in a prefabricated building with an elevation matching the computed storm event water surface elevation to avoid impacts during major storm events. The pump raises stormwater over 11 feet, discharging it to a 54-inch IPS HDPE force main (400 LF in length) that outfalls to the flood storage basin. The basin outlet structure features an open 24-inch pipe, and an emergency structure is included to manage larger storm events. These structures connect through a trunk line extending over 600 feet to discharge into the creek. JMT’s design approach focused on minimizing environmental impacts and permitting requirements that influenced the design and construction schedule. Consequently, the discharge pipe was designed to be 36 inches or less in diameter to reduce permitting needs and impacts on the waterbody.

Long Bridge Progressive Design-Build

Location​: Arlington, VA / Washington, DC
Client​: Virginia Passenger Rail Authority

The Virginia Passenger Rail Authority (VRPA) selected the JMT/HNTB joint venture design team and a contractor for the $2.3 billion North Package of the Long Bridge project. This project aims to boost rail capacity over the Potomac River and add a new bike-pedestrian bridge between Arlington, Virginia, and Washington, DC.

The Long Bridge is a CSXT-owned, two-track bridge that spans the Potomac River in Washington, D.C. The Long Bridge project aims to increase rail traffic capacity by creating a four-track corridor and constructing approximately 1.8 miles of improvements, including seven rail bridges and pedestrian bridges over land and the Potomac River, along with related railroad infrastructure between Arlington, VA, and Washington, D.C. The project will construct a new, two-track railroad bridge next to the existing Long Bridge, resulting in a four-track corridor. Additionally, a new bike-pedestrian bridge will be built as part of the mitigation efforts for NPS parkland, spanning the Potomac River and George Washington Memorial Parkway and connecting Long Bridge Park to East and West Potomac Parks. Freight and passenger rail operators within the project corridor include Amtrak, Virginia Railway Express (VRE), and CSXT. Annually, up to 1.3 million Amtrak passengers and 4.5 million VRE commuters use the current Long Bridge, which operates at 98% capacity during peak hours. The project’s objective is to enhance railroad capacity between Virginia and the District of Columbia while reducing the rail congestion caused by the current two-track Long Bridge.

11th Street Corridor Design-Build

Location​: Washington, DC
Client: District Department of Transportation

JMT was the lead designer for this $260 million design-build project that included three new major continuous steel multi-girder bridge crossings of the Anacostia River and two complex interchanges.

The 11th Street project was the largest construction initiative by dollar in DDOT history. It was also the first transportation project to be delivered using the Design-Build-To-Budget procurement method administered by DDOT. The project enhances regional connections and provides drivers with improved accessibility to DC neighborhoods. Bridges now link the Anacostia Freeway and the Southeast Freeway, adding new traffic movements and increasing access to the NPS’s Anacostia Park. Previously, there was no direct connection between the Southeast Freeway and the northern segment of the Anacostia Freeway. As a result of these unfinished connections, regional traffic used neighborhood streets to reach the Anacostia Freeway from the Southeast Freeway, leading to increased local traffic within the Anacostia and Capitol Hill neighborhoods. The 11th Street Corridor project completed all freeway connections for regional traffic between the Southeast Freeway and Anacostia Freeway, enhancing accessibility while separating local and regional traffic. Additionally, the project supported job growth and economic development in the area as part of the wider Anacostia Waterfront Framework Plan.

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