View source for U.S. Route 1A

{{short description|Highways in United States}}
{{see also|Special routes of U.S. Route 1}}
{{For|the [[seaplane]]|Shin Meiwa US-1A}}
{{Use mdy dates|date=February 2023}}
{{Use American English|date=February 2023}}
{{infobox road
|country=USA
|type=US
|route=1A}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') is the name of several highways found in the [[United States]].

==North Carolina==
===Wake Forest–Youngsville===
{{main article|U.S. Route 1A (Wake Forest–Youngsville, North Carolina)}}
{{infobox road small
|state=NC
|type=US
|route=1A
|location=[[Wake Forest, North Carolina|Wake Forest]]–[[Youngsville, North Carolina|Youngsville]]
|formed=1953
|length_mi=9.0
|length_ref=<ref name=google-wfy>{{google maps|url=https://maps.google.com/maps?saddr=US-1+Alt+N%2FS+Main+St&daddr=36.0066424,-78.4905628+to:US-1+Alt+S%2FPark+Ave&hl=en&ll=36.003285,-78.481178&spn=0.120957,0.222988&sll=36.025501,-78.446331&sspn=0.120923,0.222988&geocode=FRB9JAIdv5ZR-w%3BFfJqJQIdPlRS-yn1aZ4cZFKsiTFcT3_zKZB-zg%3BFeYlJgId111S-w&mra=dpe&mrsp=1&sz=13&via=1&t=p&z=13|title=US 1A - Wake Forest-Youngsville|access-date=January 23, 2014}}</ref>
}}
'''U.S. Highway&nbsp;1A''' ('''US&nbsp;1A''') is a {{convert|9.0|mi|km|adj=on}} [[alternate route]] of [[U.S. Route 1 in North Carolina|US&nbsp;1]] through the towns of [[Wake Forest, North Carolina|Wake Forest]] and [[Youngsville, North Carolina|Youngsville]]. While serving the downtown areas of both towns, the highway bypasses the primary commercial district of each. US&nbsp;1A runs [[Concurrency (road)|concurrently]] with [[North Carolina Highway 98 Business]] (NC&nbsp;98 Bus.) along South Avenue in Wake Forest and [[North Carolina Highway 96|NC&nbsp;96]] in Youngsville. US&nbsp;1A was established in 1953 when US&nbsp;1 was rerouted to bypass west of Wake Forest and Youngsville. The former alignment of US&nbsp;1 became US&nbsp;1A. <ref>{{cite web|url=http://www.gribblenation.com/wakeco/us1a.html |title=US 1A - WCR |publisher=Gribblenation.com |access-date=October 18, 2011}}</ref>
{{-}}

===Franklinton===
{{infobox road small
|state=NC
|type=US
|route=1A
|location=[[Franklinton, North Carolina|Franklinton]]
|formed=1953
|length_mi=2.7
|length_ref=<ref name=google-franklinton>{{google maps|url=https://maps.google.com/maps?saddr=Unknown+road&daddr=Unknown+road&hl=en&ll=36.104734,-78.457747&spn=0.0604,0.111494&sll=36.11439,-78.454576&sspn=0.003775,0.006968&geocode=FZGWJgIdpZBS-w%3BFYAVJwIdQuBS-w&mra=me&mrsp=1,0&sz=18&t=p&z=14|title=US 1A - Franklinton|access-date=January 23, 2014}}</ref>
}}
'''U.S. Highway&nbsp;1A''' ('''US&nbsp;1A''') was established in 1953 when [[U.S. Route 1 in North Carolina|US&nbsp;1]] was rerouted to bypass west [[Franklinton, North Carolina|Franklinton]]. A two-lane urban highway, it follows the old alignment through the downtown area, via Main Street. In November 2023, the [[American Association of State Highway and Transportation Officials]] approved a [[North Carolina Department of Transportation]] request to decommission the route.<ref>{{AASHTO minutes |year= 2023A |page= 3 |access-date= December 5, 2023 }}</ref>
{{-}}

==Connecticut==
{{Infobox road small
|state=CT
|type=US
|route=1A
|location=[[Stonington, Connecticut|Stonington]]
|length_mi=1.93
|length_ref=<ref name=ct-log>{{cite web |url=https://portal.ct.gov/-/media/DOT/documents/dpolicy/hwylog/HighwayLog_2018_Final.pdf |title=Highway Log  |author=[[Connecticut Department of Transportation]], Bureau of Policy and Planning, Office of Roadway Information Systems, Roadway Inventory Section |date=December 31, 2018 |access-date=January 26, 2020}}</ref>
|formed=1941
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Connecticut]] is a short loop route within the town of [[Stonington, Connecticut|Stonington]] that passes through [[Stonington (borough), Connecticut|Stonington]]. [[U.S. Route 1 in Connecticut|US&nbsp;1]] originally went along this route until 1941. US&nbsp;1A is the only surviving alternate U.S. Route in Connecticut.

The route is {{convert|1.93|mi|km}} long and takes the following route: from US&nbsp;1 to North Water Street, to Trumbull Avenue, to Alpha Avenue, then to Elm Street, and back to US&nbsp;1.

;Major intersections
{{jcttop|state=CT|county=New London|location=Stonington|length_ref=<ref name=ct-log/>}}
{{CTint
|mile=0.00
|road={{jct|state=CT|US|1|I|95|to2=yes|name1=Stonington Road}}
|notes=Western terminus
}}
{{CTint
|mile=0.41
|bridge=Lamberts Cove bridge
}}
{{CTint
|mile=1.93
|road={{jct|state=CT|US|1|I|95|to2=yes|name1=Stonington Road|city1=Mystic|location2=[[Westerly, Rhode Island|Westerly]]}}
|notes=Eastern terminus
}}
{{jctbtm}}

{{start srbox}}
{{ct browse|previous_type=US|previous_route=1|route=[[list of Connecticut numbered highways|CT]]|next_type=Route|next_route=2}}
{{s-end}}
{{-}}

==Rhode Island==
{{confused|Rhode Island Route 1A}}
{{Infobox road small
|state=NY
|type=US
|route=1A
|location=[[Warwick, Rhode Island|Warwick]]–[[Pawtucket, Rhode Island|Pawtucket]]
|length_mi=15.2
|length_ref=<ref name=rhodeisland/>
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') is a numbered U.S. Route running {{convert|15.2|mi|km}} in the [[U.S. state]] of [[Rhode Island]]. It serves as a bypass of the downtown areas of [[Providence, Rhode Island|Providence]] and [[Pawtucket, Rhode Island|Pawtucket]], which [[U.S. Route 1 in Rhode Island|US&nbsp;1]] goes through. US&nbsp;1A is a lengthier route than the section of US&nbsp;1 that it bypasses.

US&nbsp;1A should not be confused with [[Rhode Island Route 1A|Route&nbsp;1A]]. In Rhode Island, US&nbsp;1A exists in two segments in [[Providence County, Rhode Island|Providence County]] connected by a mostly-unsigned concurrency with I-195, while Route&nbsp;1A serves as a scenic alternate route of US&nbsp;1 in [[Washington County, Rhode Island|Washington County]]. Not helping matters is the presence of Route&nbsp;1A shields on US&nbsp;1A.<ref name=rhodeisland/>
;Route description
US&nbsp;1A runs for {{convert|1.7|mi|km}} through [[Warwick, Rhode Island|Warwick]] along Post Road and Warwick Avenue. Then, in [[Cranston, Rhode Island|Cranston]], it runs for another {{convert|1.7|mi|km}} continuing along Warwick Avenue to Norwood Avenue and Narragansett Boulevard before crossing into [[Providence, Rhode Island|Providence]]. There, the highway continues to follow Narragansett Boulevard and turns along Allens Avenue, Eddy Street, and Point Street. US&nbsp;1A is not signed at all in Providence, but, in all likelihood (judging from the mistakenly placed Route&nbsp;1A road signs), from Point Street, US&nbsp;1A uses Water Street to enter I-195 eastbound at exit&nbsp;1D. Similarly, US&nbsp;1A southbound probably exits I-195 westbound at exit&nbsp;1C onto South Main Street and turns left onto Point Street. The highway continues on the East Providence Expressway ([[Interstate 195 (Rhode Island–Massachusetts)|Interstate&nbsp;195]] [I-195]) into [[East Providence, Rhode Island|East Providence]]. US&nbsp;1A uses another [[one-way pairing]] with the eastbound traffic using the expressway and Warren and Pawtucket avenues. The opposite direction is routed along Pawtucket and Newport avenues. The last city through which US&nbsp;1A runs is [[Pawtucket, Rhode Island|Pawtucket]] where it runs for {{convert|2.3|mi|km}} to the [[Massachusetts]] state line in [[Attleboro, Massachusetts|Attleboro]], traveling concurrently with [[Massachusetts Route 1A|Route&nbsp;1A]] on Newport Avenue to [[U.S. Route 1 in Massachusetts|US&nbsp;1]].
;History
US&nbsp;1A is not a former alignment of US&nbsp;1. In Warwick, US&nbsp;1A formerly ran further north along Post Road east of [[Rhode Island Route 117|Route&nbsp;117]] instead of turning north to overlap with the state road. It stayed with Post Road through [[Pawtuxet Village]], then traveled north into Cranston on Broad Street to rejoin the current alignment at Norwood Avenue.

The southernmost section of the route, which exists on Post Road, was part of the [[Boston Post Road]], a former [[post road|mail route]].

In 2022, one page on the [[Rhode Island Department of Transportation|Rhode Island Department of Transportation (RIDOT)]] website, dedicated to pavement resurfacing projects from 2022 to 2027, referred to part of US 1A (the stretch between US 1/Post Road and RI 117/Warwick Avenue) as RI 1A; it is unclear if US 1A has since been re-designated as a northern extension/section of RI 1A.<ref name="RIDOT repaving 2022">{{cite web |last1=Rhode Island Department of Transportation (RIDOT) |title=RIDOT Paving: Statewide Paving & Safety Improvements - RIDOT Resurfacing Projects |url=https://www.dot.ri.gov/projects/RIDOTPaving/ |website=Rhode Island Department of Transportation (RIDOT) |access-date=August 9, 2024}}</ref>  (The paving project was completed in 2023).<ref name="RIDOT repaving 2022"></ref>  Since around this time, almost all signage along US 1A refers to the route as RI 1A.  Despite this, two posts on [[Twitter]] refer to ''US'' 1A in Providence.<ref name="Twitter-US 1A-2024-1">{{cite web |last1=RIDOTNews |title=Disabled Vehicle cleared from travel lanes on I-95 NB at Exit 35 (US-1A/ Thurbers Ave.) in Providence |url=https://x.com/RIDOTNews/status/1822026907581378874 |website=Twitter |publisher=RIDOT/Twitter |access-date=August 9, 2024}}</ref><ref name="Twitter-US 1A-2024-2">{{cite web |last1=RIDOTNews |title=Disabled Vehicle, Right lane blocked on I-95 NB at Exit 35 (US-1A/ Thurbers Ave.) in Providence |url=https://x.com/RIDOTNews/status/1821997004056100946 |website=Twitter |publisher=RIDOT/Twitter |access-date=August 9, 2024 |date=August 9, 2024}}</ref>

;Major intersections
Exit numbers concurrent with I-195 converted to [[mileage-based exit numbering]] in 2020.<ref>{{cite press release | url=https://www.ri.gov/press/view/37215 | title=Travel Advisory: RIDOT Continuing Highway Mile-Marker Numbering Program | publisher=Rhode Island Department of Transportation | date=November 27, 2019 | access-date=December 3, 2019}}</ref><ref>{{cite news | last=Andrade | first=Kevin G. | title=Wintry weather delays renumbering of exits on Route 195 | website=[[Providence Journal]] | date=December 2, 2019 | url=https://www.providencejournal.com/news/20191202/wintry-weather-delays-renumbering-of-exits-on-route-195 | archive-url=https://web.archive.org/web/20191204084949/https://www.providencejournal.com/news/20191202/wintry-weather-delays-renumbering-of-exits-on-route-195 | archive-date=December 4, 2019 | url-status=dead | access-date=December 3, 2019}}</ref> {{jcttop|exit|state=RI|county=Providence|exit_ref=<ref>{{cite web | title=Rhode Island Mile-Marker Exit Program | publisher=Rhode Island Department of Transportation | url=http://www.dot.ri.gov/projects/exitnumbers/index.php | archive-url=https://web.archive.org/web/20191204081425/http://www.dot.ri.gov/projects/exitnumbers/index.php | archive-date=December 4, 2019 | url-status=live | access-date=December 3, 2019}}</ref>|length_ref=<ref name=rhodeisland>{{google maps |url=https://www.google.com/maps/dir/41.7486276,-71.4225407/41.8966371,-71.3545325/@41.8224509,-71.4551871,12z/am=t/data=!3m1!4b1!4m24!4m23!1m20!3m4!1m2!1d-71.3954361!2d41.7789861!3s0x89e44fe819e4bb03:0x725811c09e406b65!3m4!1m2!1d-71.4035034!2d41.80778!3s0x89e4455d26649b3f:0x29642cc9042f1c12!3m4!1m2!1d-71.3529141!2d41.8107348!3s0x89e45aeb4299837b:0x645b5c512ad71be4!3m4!1m2!1d-71.354151!2d41.8856867!3s0x89e45c94bfeb1be7:0xab98a5a8d0f7a06c!1m0!3e0 |access-date=January 26, 2020}}</ref>}}
{{RIint|exit
|location=Warwick
|lspan=2
|mile=0.0
|road={{jct|state=RI|US|1|name1=[[Boston Post Road|Post Road]] / Elmwood Avenue}}
|notes=US 1 continues south as Post Road
}}
{{RIint|exit
|mile=1.2
|type=concur
|road={{jct|state=RI|RI|117|dir1=west|name1=Warwick Avenue}}
|notes=Southern terminus of Route 117 [[concurrency (road)|concurrency]]
}}
{{RIint|exit
|location=Cranston
|lspan=2
|mile=2.1
|road={{jct|state=RI|RI|12|name1=Park Avenue|I|95|to2=yes}}
}}
{{RIint|exit
|mile=2.5
|type=concur
|road=Broad Street
|notes=Eastern terminus of Route 117
}}
{{RIint|exit
|location=Providence
|lspan=5
|mile=4.4
|road={{jct|state=RI|I|95|dir1=north|road|Thurbers Avenue}}
|notes=Exit 35 on I-95; Thurbers Avenue provides access from I-95 south
}}
{{jctbridge|exit
|mile=5.8
|bridge=[[Point Street Bridge]] over the [[Providence River]]
}}
{{RIint|exit
|mile=5.9
|type=concur
|road={{jct|state=RI|US|44|dir1=west|name1=South Main Street|road|Wickenden Street|location1=[[Fox Point, Providence, Rhode Island|Fox Point]]}}
|notes=Southern terminus of US 44 concurrency
}}
{{RIint|exit
|mile=6.4
|type=concur
|exit=1C
|road={{jct|state=RI|I|195|dir1=west|US|6|dir2=west|I|95|to3=yes|location1=[[Boston]]|location2=[[New York City|New York]]}}
|notes=Southern terminus of I-195 / US 6 concurrency; southbound exit and northbound entrance
}}
{{RIint|exit
|mile=6.6
|exit=1D
|type=incomplete
|road=Gano Street – [[India Point Park|India Point]]
|notes=Westbound exit and entrance
}}
{{jctbridge|exit
|location_special=[[Seekonk River]]
|mile=6.7
|bridge=[[Washington Bridge (Providence, Rhode Island)|Washington Bridge]]
}}
{{RIint|exit
|location=East Providence
|lspan=11
|mile=6.8
|exit=1B-C
|type=concur
|road={{jct|state=RI|US|44|dir1=east|name1=Taunton Avenue|city1=Riverside}}
|notes=Northern terminus of US 44 concurrency; northbound exit and southbound entrance
}}
{{RIint|exit
|mile=7.0
|exit=1D
|type=incomplete
|road={{jct|state=RI|RI|103|dir1=east|name1=Warren Avenue}}
|notes=Northbound exit and southbound entrance; western terminus of Route 103
}}
{{RIint|exit
|mile=7.7
|exit=2A
|road=Warren Avenue (Route 103) / Broadway / Pawtucket Avenue – [[East Providence, Rhode Island|East Providence]]
|notes=Signed as exit 2 southbound; also signed for [[US 44 (RI)|US 44]] and [[Route 103 (Rhode Island)|Route 103]] southbound
}}
{{RIint|exit
|mile=8.4
|exit=2B
|type=incomplete
|road={{jct|state=RI|RI|114|dir1=south|to1=yes|name1=East Shore Expressway|city1=East Providence|city2=Barrington}}
|notes=Eastbound exit and westbound entrance
}}
{{RIint|exit
|mile=8.6
|exit=2C
|type=concur
|road={{jct|state=RI|I|195|dir1=east}}
|notes=Northern terminus of I-195 concurrency
}}
{{RIint|exit
|mile=8.7
|type=concur
|road={{jct|state=RI|US|6|dir1=east|name1=Warren Avenue|location1=[[Seekonk, MA]]}}
|notes=Northern terminus of US 6 concurrency
}}
{{RIint|exit
|mile=9.0
|type=concur
|road={{jct|state=RI|RI|103|RI|114|dir2=south|I|195|dir3=east|to3=yes}}
|notes=Southern terminus of Route 114 concurrency
}}
{{RIint|exit
|mile=9.8
|road={{jct|state=RI|US|44|name1=Taunton Avenue}}
}}
{{RIint|exit
|mile=10.7
|road={{jct|state=RI|RI|114A|dir1=south}}
|notes=Northern terminus of Route 114A
}}
{{RIint|exit
|mile=11.3
|road={{jct|state=RI|RI|152|name1=Newman Avenue}}
|notes=Southern terminus of Route 152.
}}
{{RIint|exit
|mile=11.8
|type=concur
|road={{jct|state=RI|RI|114|dir1=north|name1=Pawtucket Avenue}}
|notes=Northern terminus of Route 114 concurrency
}}
{{RIint|exit
|location=Pawtucket
|lspan=2
|mile=14.0
|road={{jct|state=RI|RI|15|name1=Armistice Boulevard}}
}}
{{RIint|exit
|mile=15.2
|road={{jct|state=MA|MA|1A|dir1=north|city1=Attleboro}}
|notes=Continuation into [[Massachusetts]]
}}
{{jctbtm|exit|keys=concur,incomplete}}

{{start srbox}}
{{ri browse|previous_type=US|previous_route=1|route=[[list of Rhode Island numbered highways|RI]]|next_type=Route|next_route=1A}}
{{s-end}}
{{-}}

==Maine==
===York===
{{infobox road small
|state=ME
|type=US
|route=1A
|location=[[York, Maine|York]]
|length_mi=7.0
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[York, Maine|York]] travels along the coast and serves the areas of [[York Harbor, Maine|York Harbor]], [[York Beach, Maine|York Beach]], and [[Cape Neddick, Maine|Cape Neddick]]. The length of this segment is {{Convert|7.0|mi|km}}.
{{-}}

===Portland===
{{infobox road small
|state=ME
|type=US
|route=1A
|location=[[Portland, Maine|Portland]]
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''')'s original routing in [[Portland, Maine|Portland]], Maine's largest city, has largely been eliminated, but a short section still exists mainly along Portland's waterfront. It now begins at exit&nbsp;7 on the I-295 freeway (also known as [[Franklin Street (Portland, Maine)|Franklin Street]]). It travels southeast along the Franklin Street Arterial until its intersection with [[Commercial Street, Portland, Maine|Commercial Street]] and the [[Maine State Pier]] in the [[Old Port of Portland, Maine|Old Port]]. At this point, it makes a 90-degree turn onto [[Commercial Street, Portland, Maine|Commercial Street]], which it will follow through the entire waterfront area, passing such landmarks as [[Becky's Diner]] and the U.S. Customs Service Portland office. It then passes under the four-lane [[Maine State Route 77|State Route&nbsp;77]] (SR&nbsp;77)/[[Casco Bay Bridge]] roadway and then continues along Commercial Street (and the waterfront) until its intersection with Valley Street and the [[Veterans Memorial Bridge (Portland, Maine)|Veteran's Memorial Bridge]]. US&nbsp;1A follows neither routing but instead turns west and north following the Fore River Parkway, on which it loops back to meet I-295 again at the exit&nbsp;5 interchange, which also serves [[Congress Street (Portland, Maine)|Congress Street]] ([[Maine State Route 22|SR&nbsp;22]]).
{{-}}

===Rockland===
{{infobox road small
|state=ME
|type=US
|route=1A
|location=[[Rockland, Maine|Rockland]]
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Rockland, Maine|Rockland]] bypasses the downtown area and begins at the intersection of Camden and Maverick streets. Traveling westbound along Maverick Street, it passes Rockland Plaza (which is Rockland's second shopping center) and is concurrent with [[Maine State Route 17|SR&nbsp;17]] along this section. It then takes a 90-degree turn at a flashing yellow blinker light to turn left (south) onto Birch Street where it meets North Main Street (which was the former alignment of SR&nbsp;17) at a traffic light. US&nbsp;1A then continues along Broadway, passing Oceanside High School as it continues south through the residential heart of Rockland, and encounters additional traffic lights at Rankin and Limerock streets, until its end at a traffic light at Park Street where it rejoins US&nbsp;1.
{{-}}

===Bangor===
{{infobox road small
|state=ME
|type=US
|route=1A
|location=[[Stockton Springs, Maine|Stockton Springs]]–[[Ellsworth, Maine|Ellsworth]]
|length_mi=54.0
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Bangor, Maine|Bangor]] is a loop route off [[U.S. Route 1|US&nbsp;1]], serving the Bangor metropolitan area. The route is {{Convert|54.0|mi|km}} long and runs from [[Stockton Springs, Maine|Stockton Springs]] to [[Ellsworth, Maine|Ellsworth]]. US&nbsp;1A enters Bangor from the southwest by following the west bank of the [[Penobscot River]] through the towns of [[Winterport, Maine|Winterport]] and [[Hampden, Maine|Hampden]]. US&nbsp;1A crosses the [[Joshua Chamberlain Bridge]] from downtown Bangor into the city of [[Brewer, Maine|Brewer]] and continues southeast through [[Holden, Maine|Holden]] and [[Dedham, Maine|Dedham]] to Ellsworth. This route follows the former alignment of US&nbsp;1, prior to US&nbsp;1's relocation after construction of the [[Waldo–Hancock Bridge]]. US&nbsp;1A signage on this portion lacks directional indicators.
{{-}}

===Milbridge===
{{Infobox road small
|state=ME
|type=US
|route=1A
|location=[[Milbridge, Maine|Milbridge]]
|length_mi=7.8
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Milbridge, Maine|Milbridge]] provides a more direct route for through travelers, as it branches off from US&nbsp;1 just north of the main business section of the small town of Milbridge, and is known as Bridge Street. It then crosses the [[Narraguagus River]] and continues in a northeasterly direction whereas US&nbsp;1 takes a route that is north-northwest to meet [[Cherryfield, Maine|Cherryfield]] before turning back east while US&nbsp;1A takes the more direct (and southern) route closer to the coast to rejoin its parent just east of [[Harrington, Maine|Harrington]]. The length of this segment is {{Convert|7.8|mi|km}}.
{{-}}

===Whitneyville===
{{Infobox road small
|state=ME
|type=US
|route=1A
|location=[[Whitneyville, Maine|Whitneyville]]
|length_mi=8.1
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') runs {{Convert|8.1|mi|km}} between [[Jonesboro, Maine|Jonesboro]] and [[Machias, Maine|Machias]] via the village of [[Whitneyville, Maine|Whitneyville]].
{{-}}

===Aroostook County===
{{Infobox road small
|state=ME
|type=US
|route=1A
|location=[[Aroostook County, Maine|Aroostook County]]
|length_mi=49.8
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Aroostook County, Maine|Aroostook County]] runs {{convert|49.8|mi|km}}, from [[Mars Hill, Maine|Mars Hill]] to [[Van Buren, Maine|Van Buren]]. US&nbsp;1A runs parallel to the [[Canada–United States border|Canadian border]], as [[U.S. Route 1 in Maine|US&nbsp;1]] goes through the cities of [[Presque Isle, Maine|Presque Isle]] and [[Caribou, Maine|Caribou]]. Major towns along US&nbsp;1A include [[Fort Fairfield, Maine|Fort Fairfield]] and [[Limestone, Maine|Limestone]].

The section north of Fort Fairfield to Van Buren was once SR&nbsp;165 but is no longer a numbered highway in Maine.

{{start srbox}}
{{me browse|previous_type=US|previous_route=1|route=[[list of Maine numbered highways|ME]]|next_type=US|next_route=2}}
{{me browse|previous_type=ME|previous_route=164|route=[[File:MA Route 165.svg|25px]]|next_type=ME|next_route=166}}
{{s-end}}
{{-}}

==Former routes==
{{Expand list|date=August 2008}}
===Southern Pines, North Carolina===
{{infobox road small
|state=NC
|type=US 1950
|route=1A
|location=[[Southern Pines, North Carolina]]
|formed=1957
|deleted=1962
}}
'''U.S. Highway&nbsp;1A''' ('''US&nbsp;1A''') was established around 1957, replacing the old mainline US&nbsp;1 through [[Southern Pines, North Carolina]], via May Street. It was decommissioned by 1962.<ref name="1A">{{cite web|url=http://www.members.cox.net/ncroads/us1a.html |title=NCRoads.com: U.S. 1-A |access-date=March 4, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20101125150921/http://members.cox.net/ncroads/us1a.html |archive-date=November 25, 2010 |df=mdy }}</ref>
{{-}}

===Sanford, North Carolina===
{{infobox road small
|state=NC
|type=US 1950
|route=1A
|location=[[Sanford, North Carolina]]
|formed=1957
|deleted=1960
|length_mi=6.5
|length_ref=<ref>{{google maps|url=https://maps.google.com/maps?f=d&source=s_d&saddr=Unknown+road&daddr=35.457284,-79.201134+to:35.4766311,-79.1864711+to:35.5127175,-79.1786599+to:Hawkins+Ave&hl=en&geocode=FVDWHAIdB0dH-w%3BFQQJHQIdknxH-yktSlQGdqisiTFrJBkDOm7o9g%3BFZdUHQId2bVH-ymZbWgxMqasiTFrz1oDAxx5lw%3BFY3hHQIdXdRH-ymfzwLdCqasiTGhNcjJy_4JQw%3BFXMLHgIdWsBH-w&mra=dpe&mrsp=3&sz=14&via=1,2,3&sll=35.505959,-79.168339&sspn=0.051774,0.111494&ie=UTF8&ll=35.493381,-79.177952&spn=0.103565,0.222988&z=13|link=no|title=Former US 1A - Sanford|access-date=March 4, 2011}}</ref>
}}
'''U.S. Highway&nbsp;1A''' ('''US&nbsp;1A''') was established around 1957, replacing the old mainline US&nbsp;1 through downtown [[Sanford, North Carolina]], via Carthage Street and Hawkins Avenue. It was renumbered in 1960 as [[U.S. Route 1 Business (Sanford, North Carolina)|US&nbsp;1 Bus.]]<ref name="1A" />
{{-}}

===Cary–Raleigh, North Carolina===
{{infobox road small
|state=NC
|type=US 1926
|route=1A
|location=[[Cary, North Carolina|Cary]]–[[Raleigh, North Carolina|Raleigh]], North Carolina
|formed=1933
|deleted=1935
}}
'''U.S. Highway&nbsp;1A''' ('''US&nbsp;1A''') may have appeared in 1933 as a second route between [[Cary, North Carolina|Cary]] and [[Raleigh, North Carolina|Raleigh]], North Carolina; it was cosigned with [[U.S. Route 70 in North Carolina|US&nbsp;70]] on Western Boulevard. Maps cease showing the route by 1936.<ref name="1A" />
{{-}}

===Raleigh, North Carolina 1===
{{infobox road small
|state=NC
|type=US 1926
|route=1A
|location=[[Raleigh, North Carolina]]
|formed=1946
|deleted=1948
}}
The first '''U.S. Highway&nbsp;1A''' ('''US&nbsp;1A''') in [[Raleigh, North Carolina]], was established in 1946 as new routing along Louisburg Road (cosigned with [[North Carolina Highway 59|NC&nbsp;59]]), then along new road (today's Capital Boulevard) back to Wake Forest Road. In 1948, US&nbsp;1 and US&nbsp;1A switched routes.<ref name="1A" />
{{-}}

===Raleigh, North Carolina 2===
{{infobox road small
|state=NC
|type=US 1950
|route=1A
|location=[[Raleigh, North Carolina]]
|formed=1948
|deleted=1957
}}
The second '''U.S. Highway&nbsp;1A''' ('''US&nbsp;1A''') in [[Raleigh, North Carolina]], was established in 1948 as a route switch with mainline US&nbsp;1 onto Wake Forest Boulevard. It was decommissioned by 1957.<ref name="1A" />
{{-}}

===Henderson, North Carolina===
{{infobox road small
|state=NC
|type=US 1950
|route=1A
|location=[[Henderson, North Carolina]]
|formed=1957
|deleted=1960
|length_mi=10.6
|length_ref=<ref name="Henderson, NC">{{google maps|url=https://maps.google.com/maps?f=d&source=s_d&saddr=US-1+N%2FUS-1+Bypass+N&daddr=36.3115396,-78.4097035+to:US-1+S%2FUS-158+W&hl=en&geocode=Faj6KAIdTClT-w%3BFfMRKgIdGZBT-ymt38j4crytiTEic-h-vcH-yA%3BFZjgKgIdRkdU-w&mra=dpe&mrsp=1&sz=13&via=1&sll=36.305442,-78.385048&sspn=0.102508,0.222988&ie=UTF8&ll=36.313742,-78.370628&spn=0.204993,0.445976&z=12|link=no|title=US 1 Bus - Henderson|access-date=March 4, 2011}}</ref>
}}
'''U.S. Highway&nbsp;1A''' ('''US&nbsp;1A''') was established around 1957, replacing the old mainline US&nbsp;1 through [[Gill, North Carolina|Gill]] and downtown [[Henderson, North Carolina|Henderson]], North Carolina, via Raleigh Road and Garnett Street. It was renumbered in 1960 as [[U.S. Route 1 Business (Henderson, North Carolina)|US&nbsp;1 Bus.]]<ref name="1A" />
{{-}}

===Port Chester, New York===
{{infobox road small
|state=NY
|type=US
|route=1A
|location=[[Port Chester, New York]]
|header_type=former
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Port Chester, New York]], was routed along King Street, Willet Avenue ([[County Route 43 (Westchester County, New York)|County Route&nbsp;43]]), Putnam Avenue ([[New York State Route 982C]]), and Hillside Avenue.
{{-}}

===Stamford, Connecticut===
{{infobox road small
|state=CT
|type=US
|route=1A
|location=[[Stamford, Connecticut]]
|header_type=former
|formed=1938
|deleted=1960s
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') was an alternate route in [[Stamford, Connecticut]]. Prior to the redevelopment of [[Downtown Stamford]] in the 1960s, US&nbsp;1 originally followed West Main Street across the Mill River bridge onto Main Street and along East Main Street. After the redevelopment, the Main Street portion of US&nbsp;1 was routed onto the newly created Tresser Boulevard and its accompanying bridge crossing the river.

As of 1938, US&nbsp;1A in Stamford was signed from West Main Street (US&nbsp;1) along Richmond Hill Avenue across the river, South Street, State Street north along the railroad tracks, Elm Street under the railroad tracks, and Magee Avenue to East Main Street (US&nbsp;1).
{{-}}

===Darien, Connecticut===
{{infobox road small
|state=CT
|type=US
|route=1A
|location=[[Darien, Connecticut]]
|header_type=former
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Darien, Connecticut]], was the current US&nbsp;1 alignment. In the early 1950s, a four-lane divided highway was constructed to relieve congestion in the area. US&nbsp;1 was assigned to this new highway section with the old road becoming US&nbsp;1A. The highway section was later incorporated into the [[Connecticut Turnpike]] and eventually became [[Interstate 95 in Connecticut|I-95]]. US&nbsp;1 was redesignated on the old alignment.
{{-}}

===Norwalk, Connecticut===
{{infobox road small
|state=CT
|type=US
|route=1A
|location=[[Norwalk, Connecticut]]
|header_type=former
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Norwalk, Connecticut]], was routed along Belden Avenue, Cross Street, and North Avenue. US&nbsp;1 was originally assigned to West Street, Wall Street, and East Avenue. Since the opening of the [[U.S. Route 7 in Connecticut|US&nbsp;7]] expressway, US&nbsp;1 was moved to its current alignment along part of this US&nbsp;1A along Riverside Avenue, Cross Street, and North Avenue. The original US&nbsp;1 alignment is now town-maintained.
{{-}}

===Bridgeport, Connecticut===
{{infobox road small
|state=CT
|type=US
|route=1A
|location=[[Bridgeport, Connecticut]]
|header_type=former
|deleted=1963
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Bridgeport, Connecticut]], was the current US&nbsp;1 alignment along Kings Highway Cutoff, North Avenue, Boston Avenue, and Barnum Avenue. This US&nbsp;1A existed until 1963. US&nbsp;1 originally went along modern [[Connecticut Route 130|Route&nbsp;130]] on Fairfield Avenue, State Street, Stratford Avenue, and Ferry Boulevard connecting the towns of [[Fairfield, Connecticut|Fairfield]] and [[Stratford, Connecticut|Stratford]] via downtown Bridgeport.
{{-}}

===Milford, Connecticut===
{{infobox road small
|state=CT
|type=US
|route=1A
|location=[[Milford, Connecticut]]
|header_type=former
|deleted={{circa|1942}}
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Milford, Connecticut]], was designated current US&nbsp;1 (Boston Post Road). US&nbsp;1 originally went along Broad, River, and Cherry streets. In 1940, the two alignments were swapped. US&nbsp;1A remained on Broad Street/River Street/Cherry Street until about 1942. Broad Street is now part of [[Connecticut Route 162|Route&nbsp;162]] while River and Cherry streets are now town-maintained roads.
{{-}}

===East Haven, Connecticut===
{{infobox road small
|state=CT
|type=US
|route=1A
|location=[[East Haven, Connecticut]]
|header_type=former
|deleted=early 1950s
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[East Haven, Connecticut]], was routed along Main Street. This was the original alignment of US&nbsp;1 until the opening of the Saltonstall Parkway in 1941, which was designated as US&nbsp;1. This US&nbsp;1A existed until the early 1950s. The eastern end of Main Street is now part of [[Connecticut Route 100|Route&nbsp;100]].
{{-}}

===Branford, Connecticut===
{{infobox road small
|state=CT
|type=US
|route=1A
|location=[[Branford, Connecticut]]
|header_type=former
|formed=1937
|deleted=1963
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Branford, Connecticut]], from 1937 to 1940 was designated as current US&nbsp;1 on North Main Street. US&nbsp;1 originally went along Main and East Main streets. The routes were swapped around 1940 and US&nbsp;1A remained on this alignment until 1963. Main Street is now part of [[Connecticut Route 146|Route&nbsp;146]] while East Main Street is a town-maintained road.
{{-}}

===Old Saybrook, Connecticut===
{{infobox road small
|state=CT
|type=US
|route=1A
|location=[[Old Saybrook, Connecticut]]
|header_type=former
|deleted=early 1970s
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Old Saybrook, Connecticut]], was designated on the current US&nbsp;1 alignment on Boston Post Road. US&nbsp;1 originally went to the town center using Old Boston Post Road then Main Street (now part of [[Connecticut Route 154|Route&nbsp;154]]). The two routes were swapped around 1940. US&nbsp;1A on Old Boston Post Road remained until the early 1970s.
{{-}}

===Waterford, Connecticut===
{{infobox road small
|state=CT
|type=US
|route=1A
|location=[[Waterford, Connecticut]]
|header_type=former
|formed=1948
|deleted=1975
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Waterford, Connecticut]], in late 1948 was designated on the old US&nbsp;1 alignment while US&nbsp;1 was assigned as an expressway section between the [[Raymond E. Baldwin Bridge]] in [[Old Lyme, Connecticut|Old Lyme]] and the [[Gold Star Memorial Bridge]] in [[New London, Connecticut|New London]] in late 1948. The US&nbsp;1 expressway later became part of the [[Connecticut Turnpike]] and [[Interstate 95 in Connecticut|I-95]]. The US&nbsp;1 designation was removed from the expressway in 1975 and reverted to its old surface alignment.
{{-}}

===Groton, Connecticut===
{{infobox road small
|state=CT
|type=US
|route=1A
|location=[[Groton, Connecticut]]
|header_type=former
}}
'''U.S. Route&nbsp;1A''' ('''US&nbsp;1A''') in [[Groton, Connecticut]], was routes along Long Hill Road from the I-95 exit&nbsp;85 offramp to Poquonnock Road. This was a newly constructed road in 1938 which later became US&nbsp;1 by 1941. The original US&nbsp;1 alignment used Thames Street and Poquonnock Road going through the old borough of Groton (now the city [[Groton (city), Connecticut|Groton]]).
{{-}}

===Mars Hill–Presque Isle, Maine===
{{empty section|date=February 2023}}
{{infobox road small
|state=ME
|type=US
|route=1A
|location=[[Mars Hill, Maine|Mars Hill]]–[[Presque Isle, Maine|Presque Isle]], Maine
|header_type=former
}}
{{-}}

==References==
{{reflist}}

==External links==
{{US 1}}

{{DEFAULTSORT:U.S. Route 1a}}
[[Category:Special routes of the United States Numbered Highway System|01 Alternate]]
[[Category:Transportation in New London County, Connecticut]]
[[Category:U.S. Route 1| 1A]]
[[Category:Lists of U.S. Routes sharing the same title|01A]]