Lt. Dave Giachetti, the 48th TFW’s specialist in bridge attacks, recalled the situation: “I thought that bridges would be pretty easy to knock out with PGMs [precision guided munitions]—until I tried it. We would attack a bridge and get several hits, and then we’d discover—holy mackerel!—the bridge was still standing.
With PGMs, hitting the bridge was not a problem. The problem was hitting it at a weak part, a point where the weapon would cause structural damage and drop a span. If you didn’t hit it exactly on the abutment at either end, or where the supports were, the bomb would often go through the pavement leaving a neat round hole that they could easily repair.”
2000lb級炸彈 vs MLRS M31A1 200lb彈頭