ACS Group begins construction of the SR 400 Express Lanes in Atlanta with a $10.800 billion investment

El Grupo ACS, through its subsidiaries ACS Infra (IRIDIUM) and FlatironDragados, has officially begun work on the project SR 400 Express Lanes en Atlanta This spring. With an investment of 10.800 millionThis public-private partnership will expand the capacity of one of the most critical transport corridors in Georgia to improve road safety.

The groundbreaking ceremony was attended by Departamento de Transporte de Georgia (GDOT), The Autoridad Estatal de Carreteras y Peajes de Georgia (SRTA) and the strategic partners integrated into the consortium SR 400 Peach PartnersThis promoting group is made up of ACS Infra (IRIDIUM), Acciona y Meridiamwho will execute the contract under a long-term concession model.

Technical scope and development of the logistics corridor

The project envisions the creation of managed lanes along Milla 16 (approximately 26 kilometers) from the station North Springs from the Autoridad de Tránsito Rápido del Área Metropolitana de Atlanta (MARTA), in the county of Fulton, to McFarland Parkway, in the county ForsythThe construction will be led by the alliance between FlatironDragados y Acciona, counting on Parsons as lead design engineer.

This initiative is integrated as a fundamental piece of Programa de Inversión en Movilidad Mayor de Georgia (MMIP), being the first tender under this program that it assumes income riskThe new lanes will feature a dynamic pricing system to ensure predictable travel times, while maintaining free access to existing general-use lanes.

Financial and operational details of the concession

The financial structure of the SR 400 Express Lanes It stands out for its strength, combining private capital investment with federal support through a loan TIFIA and tax-exempt bonds (PABThe total concession period exceeds 55 years in the Making, broken down into a construction phase and an extensive operating phase.

Key Concept	Project Details
Total inversion	Approximately $10.800 billion
Length of the Section	16 miles (approx. 26 kilometers)
Concession Term	55 years (5,5 years of construction + 50 years of operation)
Construction Consortium	FlatironDragados y Acciona
Sources of funding	Loan TIFIAbonds PAB and private capital

Steve DeWittCEO ACS InfraHe highlighted the importance of the start of construction: "This milestone represents a significant step for one of the most critical transport corridors in GeorgiaWe are proud to be implementing a project that will bring long-term mobility benefits and improve the daily experience of the communities.”

For its part, Javier SevillaCEO FlatironDragadosHe emphasized the socio-economic impact: "This complex initiative will generate significant employment opportunities and drive sustained economic and business growth throughout the region."

Technological innovation and regional connectivity

In addition to the lane widening, the project includes improvements to the interchange. SR 400/I-285the construction of new bridges and the implementation of advanced technological systems to optimize traffic flow. These infrastructures are designed to integrate with future improvements to bus rapid transit and current connections with MARTA.

The positive impact will extend to local contractors and suppliers, fostering regional economic activity. It is worth noting that the project's financial structure has already received international recognition with awards such as the IJGlobal North America Transport Deal of the Year and the PFI Americas Infrastructure Deal of the Year, which supports its viability and innovative design.

Predictive mobility: Implementation of dynamic tolling based on demand.
Multimodal connectivity: Reinforcement of transport nodes with the system MARTA.
Economic development: Direct link between employment centers and residential areas.

Key points and frequently asked questions about the SR 400 Express Lanes

What impact will the project have on current traffic?

The project will reduce congestion by providing 16 miles of dynamically priced managed lanes, offering a predictable time option while maintaining free access to existing general lanes.

What is the business model and contract duration?

This is a public-private partnership (PPP) with a concession of more than 55 years, which includes 5,5 years for construction and 50 years dedicated to the operation of tolls.