This area consists of two large areas. There are only a few small buildings guarded by a group of bandits. The main part of the complex is located on the destroyed highway above.
To go upwards, you can use one of the elevators.
At the top you can find a power armor. If you don't hurry while eliminating the enemies, one of them will use it.
You can find a Grognak the Barbarian on a toilet in one of the buildings above.