Mass Pike Interchange

The Mass Pike Interchange is a location in the Commonwealth in Fallout 4. It is inhabited by the Gunners, and is guarded by a Gunner Commander and an Assaultron.

Layout
Sitting atop a raised section of highway, this small base has an elevator connecting it to a guard post on the ground below it.

Notable loot

 * Grognak the Barbarian: In the Commander's shack sitting on top of the toilet.
 * Leveled power armor pieces: Either on the Commander's body, or on the power armor station next to his shack. During the quest Long Road Ahead it will be on one of the targets. If managing to sneak kill the defenders without alerting the captain, she will not enter the power armor, and one can collect the frame as well.
 * On the road going west to Poseidon Reservoir one can find a standing power armor next to a couple burned cars.

Related quests

 * Long Road Ahead - After travelling around with Robert Joseph MacCready he will ask for help in getting rid of the Gunners at this location; mainly Barnes and Winlock.

Appearances
The Mass Pike Interchange only appears in Fallout 4.

Behind the scenes
The Mass Pike Interchange (a.k.a. "Turnpike") is a real location in Weston, Mass. It's where Route 128 (Interstate 95) crosses under and connects with the Turnpike.

Bugs

 * The assaultron that spawns there crawls along the ground like its legs are crippled yet it has full health and hasn't been hit yet by the player character.