Interstate 93
Interstate Highway in Massachusetts, New Hampshire, and Vermont in the United States
Interstate 93 (I-93) is an Interstate Highway in the New England states of Massachusetts, New Hampshire, and Vermont in the United States. Spanning approximately 190 miles (310 km) along a north–south axis, it is one of three primary Interstate Highways located entirely within New England; the other two are I-89 and I-91. The largest cities along the route are Boston, and Manchester, New Hampshire; it also travels through the New Hampshire state capital of Concord.
I-93 begins at an interchange with I-95, US Route 1 (US 1) and Route 128 in Canton, Massachusetts. It travels concurrently with US 1, before Route 3 joins the concurrency at the Braintree Split on the Braintree–Quincy city line. The three routes travel via the Central Artery into and through Downtown Boston, splitting off from each other after crossing over the Charles River on the Leonard P. Zakim Bunker Hill Memorial Bridge. The portion of highway between the Braintree Split and the Central Artery is named the "Southeast Expressway", while the portion from Boston to the New Hampshire state line is named the "Northern Expressway".
I-93 ends in St. Johnsbury, Vermont, at I-91. For most of its length, I-93 indirectly parallels US 3.
“Interstate 93” enters the record as interstate Highway in Massachusetts, New Hampshire, and Vermont in the United States. Crown Archives preserves that source wording while asking what Interstate, Highway and Massachusetts can confirm, complicate or overturn.
Why this record matters
“Interstate 93” is worth following because a concise public description often conceals a longer documentary argument. Here, Interstate, Highway and Massachusetts provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 8, 2026. The linked authority identifier is Q94963. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Interstate 93”, its source revision and the description used here.
- Expand the search: follow Interstate 93 primary sources, Interstate 93 archive and Interstate research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Interstate 93”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Interstate 93” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.