I-285 Top End Express Lanes
Georgia, GA, USA | FDOT - 2024-Present | DBFOM
Project Description
The I-285 Top End Express Lanes Project is a major transportation infrastructure initiative designed to improve mobility along the northern section of Interstate 285 in the Atlanta metropolitan area. The project will add two barrier-separated express lanes in each direction along approximately 19 miles of I-285 between South Atlanta Road and Henderson Road, as well as 3.5 miles along SR-400 from south of the Glenridge Connector to the vicinity of the North Springs MARTA Station.
The new express lanes will improve travel reliability and reduce congestion along one of the region’s most heavily traveled corridors, traversing Cobb, Fulton, and DeKalb counties and including major system-to-system interchanges with I-75, SR-400, and I-85.
The improvements are part of Georgia’s Major Mobility Investment Program (MMIP) and will integrate with the Georgia Express Lanes network, connecting to existing express lanes on I-75 and I-85.
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Location: Cobb, Fulton, and DeKalb Counties, Georgia, USA
Owner: Georgia Department of Transportation (GDOT)
Delivery Method: DBFOM (Revenue-Risk P3)
Construction Cost: TBD
Award - Completion: 2026 – TBD
Consortium: 285 East Peach Partners (285 EPP)
Developer: ACS, Acciona, Meridiam
DBJV: Acciona, Flatiron Dragados
Lead Designers: Arcadis
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Design Management & Technical Oversight
ATCs Strategy & Development
Design Optimization & Constructability
CAPEX & Schedule Analysis
Risk, Quality & Contract Advisory
Technical Proposal Development Support
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Magnitvde supports Meridiam and the broader developer consortium by providing technical, construction, and project management advisory services during the development and proposal phases of the project.
Our role includes coordinating design development between the SPV, DBJV, and designers, guiding the identification and refinement of Alternative Technical Concepts (ATCs), and advising on design optimization, constructability, and delivery strategy.
Magnitvde also advises the SPV on construction planning and project delivery, including the evaluation of construction costs (CAPEX), schedules, staging strategies, and construction sequencing, while supporting the identification and management of key technical, construction, and delivery risks.
In addition, Magnitvde provides strategic input to the technical proposal development, ensuring consistency across design, construction, quality, and risk narratives and alignment with RFP requirements, consortium strategy, and project objectives.