Knakatnuk and Nitak ( or Nitakh ) were historic native villages on the arm 's shore . The 1964 Alaska earthquake destroyed or significantly damaged most of the Anchorage neighborhoods adjacent to the Arm , including the downtown area . The proposed Knik Arm Bridge would measure approximately from Point MacKenzie on the west in the Matanuska-Susitna Borough to Anchorage on the east . The Knik Arm ferry was a proposed year-round passenger and auto ferry across the arm which was to use the M/V '' Susitna '' SWATH / barge convertible expedition craft
1964 Alaska earthquake
1964 Alaska earthquake
Knik Arm