13 - 3 controls the flow of traffic on the bridge. He is responsible for crossing with Ranger #1's rucksack. He is generally the next to the last Ranger to cross (follows PSG, who is keeping a head count). (g) Rangers #5 and #6 (Rope Tighteners) wear the waterborne uniform with FLC and safety line. They tighten the transport-tightening knot. They also take the rucksacks of Ranger #2 and #3 across. Once they reach the far side, Rangers #5 and #6 pull the last Ranger (#3) across. (h) Rangers #4, #5, and #6 transport the rucksacks of Rangers #1, #2, and #3 across. To do so, they hook the rucksacks into the rope by running the carabiner through the top of the frames, then pulling the rucksacks across. They attach their own weapons between themselves and the rucksack they are pulling across the bridge. (i) BTC rehearses the bridge team during the planning sessions, and then directs the construction and emplacement. The unit leader selects the crossing site, which complements the tactical plan. • Ranger #3 positions himself downstream of crossing site. • Ranger #1 enters water upstream of #2. He stays one arm's length from Ranger #2 and is prepared to render any assistance to Ranger #2. They stay together to help compensate for the current. BTC feeds rope out of the rucksack positioned on the downstream side of the near side anchor point. (j) Ranger #1 exits and identifies the far side anchor point (if BTC cannot identify it for Ranger #2). Ranger #2 exits on the upstream side of the far side anchor point. The rope is now routed to facilitate movement on and off the bridge. (k) Radios and heavy equipment are waterproofed and rigged. Rangers don waterborne uniform and tie safety lines. PSG moves to anchor point and maintains accountability by counting heads. (l) Ranger #2 signals the BTC that the rope is temporarily attached to the far side anchor point, and the BTC pulls out excess slack and ties the transport-tightening system using a Figure 8 slip. The BTC signals Ranger #2 to pull the knot 12 to 15 feet from the near side anchor point. After this, Ranger #2 ties round turns 18 to 24 inches off the water with the remaining rope, and secures the rope to itself, with a carabiner. Ranger #2 signals the BTC and the pulling team (Rangers #4, #5, and #6) tightens the bridge, pulling the transport-tightening system as close as possible to the near side anchor point. (m) Ranger #1 moves downstream and assumes his duties as the far side lifeguard. The bridge team commander ties off the rope with a round turn and two half hitches around the near side anchor point. The BTC places himself on the upstream side of the bridge (facing downstream) and starts hooking individuals into the rope and inspecting them for safety. NOTE: Any Ranger identified as a weak swimmer crosses alone so the near and far side lifeguards can watch him without distraction. (n) Ranger #2 moves to the upstream side of the rope bridge, assists personnel off the rope on the far side, and keeps the head count going. Rangers #5 and #6 cross with the rucksacks of Rangers #1 and #2. (o) The BTC maintains the flow of traffic, ensuring that no more than three Rangers are on the bridge at any one time (one hooking up, one near the center, and one being unhooked). Once the PSG has accounted for everyone on the near side, he withdraws left and right (L/ R) security and sends them across. PSG follows security across. Ranger #3 hooks the BTC (with #3's rucksack) onto the rope. Once the BTC crosses, Ranger #3 unhooks the near side anchor point and the BTC unties the far side anchor point. Ranger #3 ties an Australian rappel seat with carabiner to the front. He hooks onto the carabiner that is in the end of the line bow line on the 120 foot rope, and then signals Rangers #4 to #6 to take in slack. Ranger #3 extends his arms in front of his head, slightly upstream, to fend off debris, and then he is pulled across by the #4, #5, and #6. Except for Rangers #1 through #3, everyone wears a rucksack across. Rangers #4 through #6 hook the rucksacks of Rangers #1/ 2/ 3 onto the bridge by the carabiners. All the Rangers cross facing upstream.