Matagorda Historical Photo Question

[TeddyC]

I was looking on Google Earth at Matagorda, specifically the coastline area between Sargent and the Port O'Connor Jetties. I clicked on view, historical imagery, then clicked on the 1943 satellite photos. Two things jumped out at me. First, all the activity that was going on at the military base, there must be 100 planes in the photo, lots of barracks and outbuildings, I recently walked that area with no idea it had such an active past. Secondly and what brought me to my question. There must be 6 or 7 cuts that ran from East and West Matagorda bay that made it to the gulf. Why do some of those cuts not make it to the gulf today. Is it a man made issue? Did the dams on the Colorado for the highland lakes coupled with the water being used for irrigation reduce the freshwater flow enough to cause the cuts to silt in? Would that even make a difference? Is it mother nature? Are we just living during a period where these cuts just don't make it to the gulf? If you have not looked at these photos give them a look there interesting.