A brand-new street is about to open in the heart of Midtown Atlanta, connecting the Arts Center MARTA station to Williams Street after years of planning, delays, and even some unexpected rock blasting underground. The 15th Street Extension should complete construction and open to the public by the end of August, per Midtown Alliance, filling in a two-block gap that has sat as empty lots for years.
The project, first covered by Urbanize Atlanta, replaced two formerly vacant lots that once sat beside the AMLI Arts Center and Hanover Midtown apartment towers. Before the extension, 15th Street simply dead-ended at West Peachtree Street, and access to the Arts Center MARTA station along sections of Spring Street was restricted. Roadway striping has already gone down, and green bike lane markings are expected to be installed the week of Sunday, August 17, according to the outlet's reporting.
A Decade in the Making
The idea for the extension is far older than the construction itself. The Atlanta Department of Transportation traces initial planning efforts back to November 2016, and Atlanta and Georgia Department of Transportation officials began formal project design in the summer of 2017. State and local agencies did not complete the required environmental and traffic studies until 2019 and 2020, according to Midtown Alliance, which allowed right-of-way acquisition along GDOT property to wrap up in 2021.
Even after that groundwork was laid, the path to construction wasn't smooth. Midtown Alliance initially advertised the project for construction bids in September 2022, then canceled that solicitation the following month to adjust partner coordination, before re-advertising for bids in May 2023. The organization ultimately awarded the low-bid construction contract to Reeves Young, LLC on December 8, 2023, issuing an official notice to proceed on March 18, 2024, with an 18-month contract duration.
Rock Blasting and Rising Costs
Construction kicked off in the first quarter of 2024, and the extension has been taking visible shape since early that year. Subterranean rock formations between Spring Street and Williams Street required specialized blasting and removal during early site preparation, extending the earthwork before paving could begin, according to Urbanize Atlanta's earlier reporting.
Those complications helped push the project's price tag well past its original estimate. The Federal Highway Administration's records show the project was originally baseline-budgeted at $3.6 million, funded through $1.25 million in City of Atlanta impact fees, $1.16 million from the Midtown Improvement District, $1 million in federal and GDOT funds, and $188,000 in Atlanta Regional Commission design grants. The extension ultimately secured more than $6 million to build, with GDOT and federal coffers providing about half of the funding and Midtown Improvement District funds and city impact fees covering the bulk of the remaining costs. GDOT's own right-of-way eliminated the need to acquire additional real estate, which helped offset some expenses.
What Drivers, Cyclists and Walkers Will Get
Once open, the extension will connect two busy north-south traffic corridors and create a multimodal, people-friendly two-block link from the Arts Center MARTA station to Williams Street. West of West Peachtree and Spring streets, the roadway will include a single through-lane in each direction, while the stretch between West Peachtree and Spring streets will carry three new lanes of public roadway, including two left-turn lanes at West Peachtree and Spring.
The design leans heavily on non-driver mobility. Plans call for 10-foot sidewalks on both sides of the street, five-foot-wide bicycle lanes at sidewalk level running in each direction, and a five-foot zone reserved for trees and street furniture. Those bike lanes are designed to connect the Arts Center MARTA station, nearby residential and hotel developments, and existing and planned bike routes throughout Midtown, serving pedestrians, cyclists, and motorists alike.
Engineering firm Jacobs led the corridor design and was also retained for construction engineering and inspection services, according to Jacobs. The firm's work on the multimodal layout earned it the Georgia Partnership for Transportation Quality Preconstruction Award in the Highway Design – Small Project category in 2025. Georgia Department of Transportation state project tracking records also note that new traffic signals had to be installed at both the 15th Street and Spring Street intersection and the 15th Street and Williams Street intersection, with GDOT conducting the final signal inspection on 15th Street in July.
Why This Small Street Matters Regionally
The extension is a rare thing in a dense, built-out urban grid: an entirely new street connection rather than a widening or repaving of an existing route. Federal and engineering project records note that Midtown Atlanta serves nearly 115,000 daily commuters, and the 0.16-mile extension was specifically designed to break up an urban superblock and relieve heavy east-west traffic pressure on 14th Street, which carries significant vehicular traffic to and from the Downtown Connector.
There's also a longer-term angle. Georgia Department of Transportation plans have aligned the extension's right-of-way so it could someday accommodate a future 15th Street bridge over the Downtown Connector, offering direct HOV interstate access, according to Atlanta Regional Commission planning documents. GDOT previously drafted concepts for an HOV interchange in regional plan filings, though no timeline for that larger bridge project has been established.
The extension arrives as Spring Street has absorbed hundreds of new residences in recent years, adding pressure to the surrounding street grid. It's also just one piece of a much bigger push: the project is one of 16 capital improvement projects managed by Midtown Alliance and the Midtown Improvement District, part of more than $60 million in public space investments across the subdistrict that include complete-street upgrades on Spring Street and Juniper Street.
