Looks like concrete wall pieces. They're presumably moved by crane, and if you zoom in you can almost see two places on top where they hook on.
A Bremer wall, or T-wall, is a twelve-foot-tall (3.66 m) portable, steel-reinforced concrete blast wall of the type used for blast protection throughout Iraq and Afghanistan.
The Bremer barrier resembles the smaller 3-foot-tall (0.91 m) Jersey barrier, which has been used widely for vehicle traffic control on coalition military bases in Iraq and Afghanistan. To indicate that the Bremer barrier is similar but larger, the 12-foot-tall (3.66 m), intermediate-sized Bremer barriers are usually referred to as Texas barriers, but not to be confused with the 3.5-foot (1.07 m) Texas constant-slope barrier. Similarly, the largest barriers, which stand around 20-foot-tall (6.1 m), are called Alaska barriers. Unlike the Jersey barrier, which has sloped sides at the base, some Texas and Alaska barriers have a rectangular ledge base, usable as a bench for sitting or resting and approximately knee-high for a typical adult.[1]
Sector2 4 points 8 months ago
Looks like concrete wall pieces. They're presumably moved by crane, and if you zoom in you can almost see two places on top where they hook on.
https://mwi.westpoint.edu/wp-content/uploads/2016/11/Spencer5.jpg