Weathered gray shingle home with white-trimmed windows, a navy entry door, a curved brick walk and established autumn planting.

The Sagamore Bridge Clock Starts in Winter 2027. Bourne's Prices Didn't Wait.

"We are going to keep pushing this project forward," Governor Maura Healey said on September 28, 2026, when the state announced $956 million in federal grant authorization and released the design-build Request for Proposals for the new Sagamore Bridge. The same release lays out the schedule in plain terms. Final proposals are expected in May 2027, the public bid opening in July 2027, a Notice to Proceed in late 2027, and the start of construction in "winter 2027."

Bourne's housing market isn't waiting for that schedule. Through August 2026, the town's single-family median was up double digits from a year earlier and pending sales had climbed. For a buyer comparing Upper Cape towns, the timing is what matters. Any home bought near the canal this fall is bought before the hard construction years begin, at a price that so far shows no discount for them.

The Calendar Behind the Headlines

News of a bridge milestone can sound like work about to start. The state's own sequence shows how much of the project still lies ahead. MassDOT expects the new eastbound span to open in 2033. Then all traffic shifts onto it while the existing Sagamore Bridge comes down and the new westbound span goes up.

Milestone State's current timing
Design-build RFP released September 28, 2026
Additional $371 million federal authorization Expected mid-October 2026
Final proposals due May 2027
Public bid opening July 2027
Notice to Proceed Late 2027
Construction begins Winter 2027
New eastbound span opens 2033
Old bridge demolished, westbound span built After 2033

On September 29, the Cape Cod Times reported that MassDOT had narrowed the field to three builder teams. The "winter 2027" phrasing is less exact than it looks. In March 2026, earlier state wording put the start in winter 2027–2028. Either reading leads to the same conclusion. Someone closing on a house in Sagamore, Sagamore Beach, or Buzzards Bay this fall gets roughly a year of quiet before the main work begins. After that comes a stretch of six years or more before the first new span carries traffic, and then a second phase of demolition and construction.

Most of what neighbors have seen so far has been preparation. In May 2026, the CAI reported pile driving beside the former Christmas Tree Shops on the east side of the existing bridge. The piles went 75 to 90 feet down, and the testing was expected to run two to three months. The replacement bridge itself is planned for the west side.

Bourne Is Getting More Expensive Before the Work Begins

The Massachusetts Association of Realtors' Bourne report for August 2026, released September 15, shows a market that has absorbed the bridge news without slowing.

Bourne single-family, year-to-date through August 2025 2026 Change
Median sales price $619,500 $690,000 +11.4%
Closed sales 112 124 +10.7%
Pending sales 118 138 +16.9%
New listings 158 169 +7.0%

At the end of August 2026, Bourne had 43 single-family homes for sale, down from 48 a year earlier. That works out to 2.7 months of supply. Even after this year's gains, the town is still cheaper than the Cape overall. The Cape Cod & Islands Association of Realtors put the Barnstable County single-family median at $816,900 for August 2026.

Buyers seem to be valuing Bourne on its relative affordability and its position at the canal. The years of construction around the Sagamore haven't shown up in the price. That makes sense when the cranes are still a year or more away. The risk is that the price a buyer pays this fall rests on today's conditions. The resale buyer of 2029 or 2031 will be looking at a site in the middle of active construction.

August by itself gives a hint of hesitation, but the sample is small. In August 2026, Bourne's 23 single-family sales took a median 66 days on market, up from 43 a year earlier. Sellers received 93.5% of their original list price, down from 95.9%. New listings that month nearly doubled, from 13 to 25. MAR's own report warns that a single month can look extreme because of small sample sizes. Bourne condominiums moved in a different direction. Condo inventory rose to 34 units from 18, and months of supply went from 4.3 to 7.5.

Round Hill Is Where the Calendar Becomes a Street Map

The clearest local case is in Round Hill, the small subdivision at the foot of the current bridge in the village of Sagamore. The Cape Cod Times reported that it was laid out on four short streets: Eleanor Avenue, Johns Lane, Cecilia Terrace, and Louis Avenue. According to state payment records the paper obtained, Massachusetts has paid about $10 million to 12 homeowners in eminent domain takings for the new bridge. Eleven of those homes are in Round Hill and one is in Sagamore Beach, north of the canal. A home at 11 Cecilia Terrace is the last one scheduled to be taken.

The individual payments ranged from $680,000 to $1.29 million for single homes. The largest, $2 million, covered two houses on Johns Lane. These figures can be tempting to use as comparables. They aren't. An eminent domain payment is a negotiated government acquisition, and no willing buyer chose the house. A seller elsewhere in Sagamore who prices off those numbers is pricing off something that never happened on the open market.

The more useful part of the Round Hill story is what happens next. In August, Luisa Paiewonsky, executive director of the state Department of Transportation Mega Projects Delivery Office, said demolition of the state-owned houses would begin in the fall. Some of the 11 homes had been boarded up because of trespassing, and the state promised to keep the lawns mowed until demolition and to hold a meeting with remaining residents. The same reporting said about six Round Hill homes would remain outside the taking. MassDOT plans to use the cleared area first for staging construction of the first bridge foundation, and later for maintenance access, drainage, and pathways. For anyone weighing a house nearby, the parcel next door is about to become a staging site for a $2.1 billion bridge.

What the State Has Promised for Daily Life

MassDOT's July 2026 hearing materials list its commitments for the construction period. It plans to keep two through lanes on Route 6 and Route 3, maintain interchange ramps and local road access, limit nighttime closures to specific tasks, and keep access open to homes and businesses. The September release repeats the two-lanes-each-way promise.

The Cape Cod Canal bike path also has a planned detour. On the Cape side, riders would go from Keith Field along Sandwich Road and rejoin the main path near the Mid-Cape Connector. On the mainland side, the detour uses Canal Street and Scenic Highway to the Herring Run Recreation Area. All of these are plans for later. None of the sources reviewed shows a closure or detour notice in effect this fall.

Traffic affects how a house sells, too. In 2023, during an earlier round of bridge repairs, the Cape Cod Times reported a local agent's account of buyers missing or showing up late to showings because of bridge traffic. Morning open houses held up better. That was a single account from a different project. Still, it's the kind of friction a seller near the canal could face again later in the decade.

The Second Bridge Has No Date Yet

The Bourne Bridge, the canal's other crossing, still has no construction funding. The state and the U.S. Army Corps of Engineers are waiting on a federal funding decision, and the September release gives no start date for that phase. The July hearing gave only a brief update on Bourne. For buyers looking near the Bourne Rotary, that means the construction timeline can't yet be predicted, so it can't be priced in.

Before making an offer near either bridge, a buyer can reasonably ask:

  • How close is the house to the Round Hill staging area, the Route 6 and Route 3 interchanges, or the planned detour routes on Canal Street, Scenic Highway, and Sandwich Road?
  • Does the property's appeal depend on quick canal access during peak season, which is exactly what the construction years will test?
  • Will the hold period realistically end before 2033, during the westbound build, or after the project is complete?
  • If rental income is part of the plan, how would summer guests feel about arriving during active bridge construction?

Quick Answers

Has construction on the new Sagamore Bridge started? No. As of the September 28, 2026 announcement, the project is in final procurement. Construction is expected to begin in winter 2027, after a Notice to Proceed in late 2027.

Will traffic drop to one lane each way? MassDOT says it plans to keep two lanes in each direction throughout construction. Some specific tasks will need limited nighttime closures.

Are the Round Hill takings payments a guide to local values? No. They are government acquisitions, not open-market sales, and shouldn't be used as comparables.

When does the project actually finish? The new eastbound span is expected to open in 2033. Demolition of the old bridge and construction of the westbound span come after that.

At Ermine Lovell Real Estate, we track the bridge calendar street by street. If you're weighing a home in Sagamore, Sagamore Beach, or Buzzards Bay, we're happy to walk you through how the construction years line up with your plans for owning, renting, or eventually selling it. Talk with a Local Cape Expert.

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