CAMP TAJI — Traffic builds while a truck struggles to make it up a sandy on-ramp as the vehicle’s driver navigates an alternate route in an attempt to bypass a damaged bridge. After some time, Iraqi Police and locals give the driver a push. The scene replayed every few minutes, frustrating military and civilian drivers alike near the city of Taji. A steep slope on the on-ramp, coupled with a lack of a hard surface, were making it hard for traffic to travel the road and causing traffic to regularly back up for half a mile. This is where the...