Sagamore Bridge Replacement: How and When Bourne Homes Feel It
The Sagamore Bridge replacement will reach Bourne in stages over roughly a decade. Each stage lands on different streets, which makes the schedule more useful to a buyer than the headline. In Round Hill, the biggest change has already happened, and the homes taken by eminent domain are waiting for demolition this fall. On the Cape side, the redesign is meant to take regional traffic off a set of local roads, but that relief comes from a road layout that is still years from opening. On the mainland side, the main changes are a new overpass, two roundabouts and a detour for the canal path.
If you're comparing Bourne with Sandwich, Falmouth or Plymouth, "near the bridge" tells you very little about a house. You need the street and the year.
MassDOT identified 13 homes for acquisition in the Sagamore work area. By the end of August, CAI reported that 12 had been taken. The last one was in Probate Court for reasons that, according to MassDOT, had nothing to do with the eminent domain process. The Cape Cod Times reported on September 23, 2026, that the state had paid a total of $10 million to those 12 homeowners.
The vacant houses are now boarded up. Luisa Paiewonsky, who runs MassDOT's Megaprojects Delivery Office, told CAI that the agency had seen break-ins and squatting and was concerned about the neighbors who were staying. On Monday, September 28, about 10 remaining Round Hill residents met with MassDOT at the Veterans Memorial Community Center. State Representative Steven G. Xiarhos helped set up the meeting, according to the Bourne Enterprise on capenews.net. The demolition graphic shown that evening split 12 homes on three streets into three phases:
The same report said demolition is expected to start in late fall. First, MassDOT has to assess hazardous materials and finish environmental reviews, including bat surveys. Some residents asked whether the state would buy their homes too. Paiewonsky said MassDOT can't take a home without a public purpose, and that specific requests were being reviewed for any flexibility. Residents also raised concerns about a proposed shared-use path connecting to Eleanor Avenue. They said people had cut through the neighborhood to reach Market Basket in the past, which led to a gate being installed.
For a buyer, Round Hill is the one part of the project where the property question has mostly been settled. What's still open there is the demolition schedule, the path connection and the construction years nearby.
This is where the bridge news and the street map differ the most. Today, a driver coming off the westbound ramp and heading for the Bourne Bridge goes down Cranberry Highway to Ben Abbey Road, back to Sandwich Road and past Keith Field. At the July 23, 2026 design hearing, a MassDOT presenter described the new layout. Cranberry Highway would run under the new Route 6, connect to the Market Basket driveway and continue to the Mid-Cape Connector. A new link between Cranberry Highway and Sandwich Road would send Bourne Bridge traffic through a roundabout instead of through the neighborhood. From the hearing transcript MassDOT published:
"So all that traffic that was using those local roads, including Ben Abbey and Sandwich and going by the ball field, they will not need to do that anymore."
Adams Street gets similar treatment. Drivers who now take Adams Street from the Bourne side to get onto the bridge would instead use the Mid-Cape Connector and a new ramp that runs under Route 6 and merges toward the mainland. The presenter described it as "a much longer ramp, a much safer ramp."
The same layout needs one demolition beyond Round Hill. The small strip mall in front of Market Basket, closer to Route 6, has to come down for the road realignment. Market Basket stays, and MassDOT said shoppers will have access to it throughout construction.
The schedule matters here. The traffic relief on Ben Abbey Road, Sandwich Road and Adams Street is part of the finished design. None of the sources reviewed gives an opening date for the Cranberry Highway extension or the new ramp, so a buyer looking at those streets today is looking at current traffic patterns. The relief is promised in a plan, but no date has been given for it.
North of the canal, the plan adds a new Route 3 overpass above Scenic Highway and two roundabouts. Ramp access toward State Road and Scusset Beach gets reorganized. The western Scenic Highway connections and the Church Lane arrangement were described as broadly similar to today.
The canal path changes during construction, and for some residents that may matter more day to day than the traffic changes. The Canal Service Road will have work-zone closures. The mainland detour runs along Canal Street and Scenic Highway to Herring Run. The Cape-side detour uses the Mid-Cape Connector area, Sandwich Road and Keith Field. After construction, MassDOT's hearing FAQ lists improved path and sidewalk connections to Scenic Highway, Canal Street, State Road, Sandwich Road, Cranberry Highway, the Canal Service Roads and the Bourne Park and Ride. The eastbound span will also carry a shared-use path separated from traffic by a barrier.
Noise, dust and vibration came up publicly at the July hearing. CAI reported that Bourne Select Board vice chair Anne-Marie Siroonian raised those issues, along with emergency access and uninterrupted access to local businesses. MassDOT's FAQ says the agency will coordinate with Bourne officials, police, fire, emergency responders and schools on incident management and traffic messaging, and will refine those strategies as it develops traffic management plans. The Select Board has discussed a formal memorandum of understanding with MassDOT covering traffic, emergency response, evacuation and construction staging. The sources reviewed don't show that one has been signed.
The order of events matters more than any single date. As of October 2026, the published schedule looks like this:
MassDOT plans to keep two lanes open in each direction throughout construction. In September, CAI reported that work will pause at some peak travel times, including around the Fourth of July.
If you buy in 2026 and own for ten years, you'll likely live through the whole project. If you plan to sell in about five years, you'd be selling in the middle of construction, before the eastbound span opens.
The Massachusetts Association of Realtors' August 2026 local market update for Bourne shows a market that slowed down even as prices rose. In August 2026, the town's median single-family sale price was $790,000, up 8.7% from $726,500 in August 2025, on 23 closed sales. Through the first eight months of 2026, the median was $690,000, up 11.4%.
The pace changed more than the price. Cumulative days on market rose from 43 in August 2025 to 66 in August 2026. Sellers received 93.5% of original list price, down from 95.9%. New listings jumped from 13 to 25, while supply stood at 2.7 months. Put simply, homes took longer to sell and more of them sold below their first asking price, yet the August median still went up.
None of this data separates streets near the bridge from the rest of Bourne. The report itself warns that one month can look extreme because the sample is small. These figures can't show what a quieter Ben Abbey Road might be worth, because that layout doesn't exist yet. They also can't show what a 2030 sale near a construction zone looks like, because that year hasn't come. A Bourne comparable sale tells you about the town in August 2026. It doesn't tell you how a specific street will look on the project's schedule.
MassDOT identified 13 homes for acquisition, and 12 had been taken as of late August 2026. Paiewonsky said the agency can't take homes without a public purpose, and specific purchase requests from remaining residents are under review.
Yes. MassDOT said access will continue throughout construction. The strip mall in front of it is the building slated for demolition.
No. The Sagamore is Phase 1. CAI described the Bourne Bridge replacement as not yet funded.
If you're weighing a home near Round Hill, Ben Abbey Road, Scenic Highway or the canal path, Shana Lundell can go through the published MassDOT schedule with you street by street, so you know which stage of the project a particular address will see while you own it. Let's Connect.
She is proud to have over 100 five-star client testimonials that rave about her positive, professional, responsive, and authentic approach to real estate service. Love where you live. Live where you love.
SHANA LUNDELL
ADDRESS