Editing Interstate 93 (section)

{{short description|Interstate Highway in Massachusetts, New Hampshire, and Vermont in the United States}}
{{about|the Interstate Highway running from Massachusetts to Vermont|former Massachusetts Route 93 and Connecticut Route 93|Connecticut Route 169}}
{{Use mdy dates|date=May 2022}}
{{Use American English|date=December 2022}}
{{Infobox road
| country = USA
| route = 93
| type = I
| map = {{maplink-road}}
| map_custom = yes
| map_notes = I-93 highlighted in red
| established = 1957
| length_mi = 189.95
| length_ref = <ref name="fhwa">{{cite web |last=Starks |first=Edward |date=January 27, 2022 |title=Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways |url=https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table01.cfm |access-date=December 12, 2022 |work=FHWA Route Log and Finder List |publisher=[[Federal Highway Administration]]}}</ref>
| restrictions = No [[hazardous goods]] and cargo tankers between exits 15B and 18 in Massachusetts<ref>{{cite web |url = https://www.mass.gov/service-details/hazardous-material-route-designation |title = Hazardous material route designation |publisher = Mass.gov |access-date = January 15, 2018 }}</ref>
| direction_a = South
| direction_b = North
| terminus_a = {{jct|state=MA|I|95|US|1|MA|128}} in [[Canton, MA]]
| junction = <!-- Major junctions only; Only 5-8 most major intersections and cities belong here; please read [[WP:USRD/STDS]] for more info -->
* {{jct|state=MA|MA|24}} in [[Randolph, MA]]
* {{jct|state=MA|MA|3}} in [[Braintree, MA]]
* {{jct|state=MA|I|90|MATP}} in [[Boston, MA]]
* {{jct|state=MA|US|1}} in Boston, MA
* {{jct|state=MA|I|95|MA|128}} in [[Reading, MA]]
* {{jct|state=NH|US|3}} in [[Hooksett, NH]]
* {{jct|state=NH|I|89}} in [[Bow, NH]]
* {{jct|state=NH|US|4}} in [[Canterbury, NH]]
* {{jct|state=VT|US|2}} in [[Waterford, VT]]
| terminus_b = {{jct|state=VT|I|91}} in Waterford, VT
| states = [[Massachusetts]], [[New Hampshire]], [[Vermont]]
| counties = '''MA:''' [[Norfolk County, Massachusetts|Norfolk]], [[Suffolk County, Massachusetts|Suffolk]], [[Middlesex County, Massachusetts|Middlesex]], [[Essex County, Massachusetts|Essex]]<br />'''NH:''' [[Rockingham County, New Hampshire|Rockingham]], [[Hillsborough County, New Hampshire|Hillsborough]], [[Merrimack County, New Hampshire|Merrimack]], [[Belknap County, New Hampshire|Belknap]], [[Grafton County, New Hampshire|Grafton]]<br />'''VT:''' [[Caledonia County, Vermont|Caledonia]]
| system1 = {{infobox road/browselinks/USA|state=MA}}
| system2 = {{infobox road/browselinks/USA|state=NH}}
| system3 = {{infobox road/browselinks/USA|state=VT}}
| browse = {{ma browse|previous_type=I|previous_route=91|route=MA|next_type=I|next_route=95}}{{nh browse|previous_type=I|previous_route=89|route=NH|next_type=I|next_route=95}}{{vt browse|previous_type=I|previous_route=91|route=VT|next_type=VT|next_route=100}}
}}

'''Interstate&nbsp;93''' ('''I-93''') is an [[Interstate Highway]] in the [[New England]] states of [[Massachusetts]], [[New Hampshire]], and [[Vermont]] in the United States. Spanning approximately {{convert|190|mi|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, New Hampshire|Concord]].

I-93 begins at an interchange with [[I-95]], [[U.S. Route 1|US Route&nbsp;1]] (US&nbsp;1) and [[Massachusetts Route 128|Route&nbsp;128]] in [[Canton, Massachusetts]]. It [[concurrency (road)|travels concurrently]] with US&nbsp;1 beginning in Canton, and, with [[Massachusetts Route 3|Route&nbsp;3]] beginning at the [[Braintree Split]] on the [[Braintree, Massachusetts|Braintree]]–[[Quincy, Massachusetts|Quincy]] city line, through the [[Central Artery]] in [[Downtown Boston]] before each route splits off beyond 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 [[Saint Johnsbury, Vermont]], at I-91.<ref>{{google maps |url=https://maps.google.com/maps?f=q&hl=en&geocode=&q=I-93&sll=42.009555,-71.71815&sspn=1.910206,3.405762&ie=UTF8&ll=44.398498,-72.012548&spn=0.01435,0.026608&t=h&z=15 |access-date=June 8, 2009}}</ref> For most of its length, I-93 indirectly parallels [[U.S. Route 3|US&nbsp;3]]. In New Hampshire, the two highways have several interchanges with each other, as well as a concurrency through [[Franconia Notch State Park]].