In the Massachusetts Department of Transportation (MassDOT) video public hearing on the I-90/I-495 Interchange Improvement Project, which was posted online Thursday, Hopkinton residents learned more about how the project will affect the community.
The 25 percent design hearing indicated that the Fruit Street bridge over I-495 will be replaced in order to accommodate interchange reconstruction. It’s anticipated that it would be stage constructed, with one lane open for alternating traffic during this time.
With this project — anticipated to cost almost $300 million — the MassDOT is looking to “improve the safety and operational efficiency at the system interchange of these two nationally and regionally significant interstate highways” as well as “address chronically deficient traffic conditions.”
According to the presentation, the interchange is one of the busiest in the state, with approximately half of all trucks entering Eastern Massachusetts using it. The crash rates on I-495 within the interchange are two times the statewide average, causing it to be identified as a high-crash and high-congestion location that does not meet current and future traffic demands.
After having a series of hearings that started in the fall of 2017 and receiving input from residents, MassDOT has settled on a proposed complete redesign of the interchange that features the following improvements:
— Ramps will be widened to include shoulders.
— All acceleration and deceleration lanes will be lengthened to meet standards.
— Eight new ramp flyover bridges will be constructed.
— For the interstate main lines, both I-90 and I-495 shoulders will be widened.
— On I-90, bridges over Whitehall Brook and the MBTA Commuter Rail will be replaced, and the existing interchange ramp bridge over I-90 will be removed.
— On I-495, bridges over I-90 and the MBTA Commuter Rail will be replaced, an I-495 Northbound bridge over Flanders Road will be partially reconstructed, and the existing interchange ramp bridge over I-495 will be removed.
— 1-495 Northbound will be realigned into the median from Fruit Street to Flanders Road.
— An auxiliary lane on I-495 Northbound from I-90 to Route 9 Eastbound will be added.
— To create space for the new ramps on I-495, the Fruit Street bridge over I-495 will be replaced.
Regarding the Fruit Street bridge, Jonathan Kapust from the design consulting firm HNTB Corporation said: “Additional improvements will include a sidewalk on the southern side of Fruit Street linking Huckleberry Road and Saddle Hill Road. Additional shoulder width is provided to facilitate construction without closing the bridge. The wider shoulders will be able to accommodate bicycles. A robust landscaping plan … is anticipated for Fruit Street to maintain the character of the roadway on either approach to the bridge. The replacement of the Fruit Street bridge is anticipated to need permanent and temporary easements to accommodate guardrail transitions, sidewalks and relocated utilities.”
Looking at the project timeline, Joe Cahill from HNTB said: “Next steps for the project include environmental permitting, right-of-way acquisition and procurement of and contracting with the design builder. Construction is anticipated to start in 2022 with completion anticipated in 2027.”
Anyone interested in commenting on the current plan can do so in writing by July 23 via email (495-90Improvements@state.ma.us) or by postal mail to MassDOT, 10 Park Plaza, Boston, MA 02116, Attention: Highway Design Project File No. 607977. Letter writers should identify themselves by name and affiliation — abutter, local official or concerned citizen.
More information is available at the MassDOT website.