I-395 highlighted in red
|Maintained by MaineDOT|
|Length||4.99 mi  (8.03 km)|
|West end||I‑95 / US 2 / SR 15 / SR 100 in Bangor|
|US 1A / US 202 / SR 9 in Bangor|
|East end||US 1A in Brewer|
Interstate 395 (I-395) is a 4.99-mile-long (8.03 km) auxiliary Interstate Highway in the Bangor, Maine area. The western terminus of the route is at a cloverleaf interchange with I-95 near downtown Bangor, where I-395 continues west as U.S. Route 2 (US 2) and State Route 100 (SR 100). The eastern terminus is at US 1A in Brewer.
I-395 primarily serves as a bypass of Bangor and Brewer for travelers wishing to access the Downeast/Bar Harbor region of Maine. As such, travelers exiting I-95 can easily access US 1A without having to traverse the business districts of Bangor and Brewer, and are less than 40 miles from Bar Harbor where I-395 terminates at US 1A.
I-395 begins at a cloverleaf intersection with I-95, and travels primarily east-west although not in a straight line. It has interchanges with US 202, Main Street in Bangor (which is US 1A), and then crosses the Penobscot River. It then has an interchange with S. Main Street in Brewer (ME 15), and then Parkway South (this interchange was the previous terminus of the highway until it was extended to US 1A later on). I-395 finally comes to an end at US 1A which is also known as Wilson Street. From there, travelers can choose to go east towards the coastal cities of Ellsworth and Bar Harbor, or west towards Brewer and downtown Bangor.
There are studies underway about extending I-395 to connect to SR 9.  In February 2008, the Maine Department of Transportation (MaineDOT) suggested five possible routes to extend I-395 to SR 9, with two in particular designated as "State's Choice" and "Holden's Choice".  The state's choice route would cut through the middle of Holden and connect to SR 9 in East Eddington; Holden's choice would run along the Brewer–Holden border and join SR 9 earlier. Since then, the state has eliminated the "State's Choice" route and only supports the "Holden's Choice" route, designated 2B-2. All three affected communities issued resolutions in 2014 opposing this route. 
|Location ||mi ||km||Exit||Destinations||Notes|
|Bangor||0.00||0.00||–||US 2 / SR 100 – Hermon, Airport||At-grade intersection|
|0.22||0.35||1A||I‑95 south – Newport||I-95 exit 182A.|
|1B||I‑95 north / SR 15 north – Orono, Airport||I-95 exit 182A; airport only appears on westbound signage; western end of concurrency with SR 15.|
|0.92||1.48||2||US 202 west – Hampden||Western end of concurrency with US 202|
|1.67||2.69||3||US 1A / US 202 east / SR 9 (Main Street) / Farm Road – Downtown Bangor, Hampden||Signed as Exits 3A (west) and 3B (east) eastbound; Farm Road only appears on eastbound signage; eastern end of concurrency with US 202|
|Bangor– Brewer line||1.91||3.07||Veterans' Remembrance Bridge over the Penobscot River|
SR 15 south / SR 15 Bus. (South Main Street) to SR 9 east – Brewer
|SR 15 Bus. only appears on westbound signage|
|2.76||4.44||5||Industrial Park Road / Parkway South - Brewer||Industrial Park Road only appears on westbound signage|
|4.74||7.63||6A||US 1A east to US 1 (Coastal Route) – Ellsworth, Bar Harbor|
|–||US 1A west – Downtown Brewer|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- "Route Log and Finder List: Table 2 - Interstate System". FHWA. Retrieved 2007-07-17.
- "I-395/Rt. 9 Connector Study". Retrieved 2007-08-24.
- Ricker, Nok-Noi (February 21, 2008). "MDOT pitches 5 ideas for I-395-Route 9 link". Bangor Daily News. p. 1. Retrieved 2011-03-01.
- Gagnon, Dawn; Ricker, Nok-Noi (September 23, 2014). "US Fish, Wildlife Service issues report on proposed I-395-Route 9 connector". Bangor Daily News. Retrieved 2014-10-23.
- "MaineDOT Public Map Viewer". Maine Department of Transportation. Retrieved April 8, 2017.
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