Kelley Square
Kelley Square is a square located in Worcester, Massachusetts, at the intersection of Massachusetts Route 122 and 122A, with ramp access to and from Interstate 290. It is named for Sgt. Cornelius F. Kelley, who died of wounds received in battle in Verdun, France, on October 13, 1918. With a complex convergence of multiple roads, the square has previously been ranked as the state's most dangerous intersection, and was ranked as the eighth-most dangerous intersection in Massachusetts.
Roads
The roads that intersect Kelley Square are listed below, starting with Madison Street on the west side of the square and proceeding around the square in a clockwise manner.| Local road | Route no. | Description |
| Two-way traffic, entering and exiting the square at west | ||
| Green Street | — | Two-way traffic, entering and exiting the square at north |
| Harding Street | 122 | One-way traffic, entering the square from the northeast |
| Water Street | 122 | One-way traffic, exiting the square to the northeast |
| Vernon Street | 122A | Two-way traffic, entering and exiting the square at southeast; ramps to/from I-290 are located here |
| Millbury Street | — | One-way traffic, exiting the square to the southwest |
| Harding Street | — | One-way traffic, entering the square from the southwest |
Route confluence
Per traffic flow changes implemented in May 2020
Redevelopment
In October 2019, officials held a groundbreaking for the Kelley Square Improvement Project, a $240 million redevelopment project that includes construction of Polar Park, a new minor league baseball stadium, along with hotels and apartments, as well as reconstructing the square as a modified roundabout.As part of the project, the Massachusetts Department of Transportation permanently reversed the direction of traffic flow on Millbury Street, and Harding Street south of the square, effective May 6, 2020.