The Cape Cod Bridges Replacement
Project Tracker
Where the project actually stands. Updated weekly. In plain English.
As of June 20, 2026
Right now
Spring 2026 · Phase 01
Final permits secured.
Coming up
Fall 2027
Property purchases complete
As of spring 2026, we're in the design and contract phase. Permits are done. The team that will build the new Sagamore is being chosen. Real construction equipment doesn't show up at the bridge until the winter of 2027 and 2028.
The money
The total project costs $4.50 billion. Federal and state governments split the bill. None of it comes from local Cape budgets.
Sagamore Bridge $2.13B
Fully funded
- Federal grant $1.72B Bipartisan Infrastructure Law (2024).
- Massachusetts $0.70B MassDOT 2026–2030 Capital Investment Plan.
Bourne Bridge $2.37B
Funding pending
- Federal grant request TBD Massachusetts seeking additional federal grant. Decision expected in 2027.
- State match TBD State portion sized to the federal share once decided.
The schedule
Eleven years of work. Both bridges stay open the whole time. Construction proper doesn't start until the winter of 2027.
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2025
Property purchases begin
MassDOT starts working with the 12 homeowners and 3 businesses whose land is needed for the new Sagamore ramps.
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Spring 2026
Final permits secured
Environmental and federal permits for the Sagamore replacement complete.
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2026
Sagamore builder being chosen
MassDOT issues the design-build RFP. Bidders submit. Award expected by end of year.
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Fall 2027
Property purchases complete
All Sagamore right-of-way purchases finalized.
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Winter 2027–2028
Sagamore construction begins
Equipment arrives at the bridge site. Workers begin building the new bridge alongside the old one. The old Sagamore stays open and carrying traffic.
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2029
Bourne construction begins
About a year behind the Sagamore. Same approach: build the new one next to the old one.
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2031
First new bridge floats in
The new Sagamore southbound span is built at a shipyard, then floated up the canal on barges and lifted into place.
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Fall 2033
First new lanes open
New Sagamore southbound side opens to traffic. The old Sagamore comes down that winter.
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2036
New Sagamore complete
Northbound side of the new Sagamore opens. Both halves of the new bridge are now in service.
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2037
All work done
New Bourne complete. Both bridges in their final form. Eleven-year project ends.
What we're watching this month
- Sagamore design-build award (expected late 2026)
- Federal grant decision for the Bourne (expected 2027)
- MassDOT board meetings (monthly)
- USACE public comment windows
Where we get our information
We read the technical stuff so you don't have to. Every claim on this page links back to a primary source.
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