 Marines with 7th Engineer Support Battalion constructed a medium girder bridge in Lake Elsinore, California, March 24th. The bridge was built to keep the Marines efficient in their bridge building capabilities. When you do anything, you got to come out and do your reconnaissance so you have your engineer forms and you do a soil test to make sure it's at least hard, compact dirt so where you can and cannot build the bridge, you do your, you have to measure the gap of course, measure the depth of the gap to make see what kind of bridge and what type of bridge and how long your bridge has to be and you get all that before you even can, you know, could even put a piece on the ground. Medium girder bridge, like I said, MGB as we call it, it's magnesium, zinc, aluminum alloy. It's not just some regular type of metal. It's something that's heavy enough to support a tank and light enough for at least some parts, two to four man, four Marines for them to carry and it's pretty much just a expedient bridge so we can put up into for logistical purposes for just to pretty much get Marines over dry and wet gaps. Reporting for the First Marine Logistics Group, I'm Corporal Owen Kimbrell.