ARMY TM 5-5420-212-10-1 MARINE CORPS TM 08676A-10/1-1 TABLE 3-6 Bridge Selection Tables SS 4 - 12 Bays DS 1 - 12 Bays DS 13 - 22 Bays w/o LRS DS 13 - 22 Bays w/LRS AR Gap No. AR Gap No. AR Gap No. AR Gap No. of MLC of * of MLC of m MLC* Bays m (T)* Bays m MLC Bays m (T)* Bays 3.7 - 7.1 70(T) 4 6.4 - 9.0 70 1 28.3 - 30.9 50 13 28.3 - 30.9 70 13 5.6 - 9.0 70(T) 5 8.2 - 10.8 70 2 30.2 - 32.8 50 14 30.2 - 32.8 70 14 7.4 - 10.8 40 6 10.0 - 12.6 70 3 32.0 - 34.6 40 15 32.0 - 34.1 70 15 9.2 - 12.6 30 7 11.9 - 14.5 70 4 33.8 - 36.4 40 16 33.8 - 36.4 70 16 11.0 - 14.4 30 8 13.7 - 16.3 70 5 35.6 - 38.2 30 17 35.6 - 38.2 70 17 12.9 - 16.3 24 9 15.5 - 18.1 70 6 37.5 - 40.1 30 18 37.5 - 40.1 70 18 14.7 - 18.1 20 10 17.3 - 19.9 70 7 39.3 - 41.9 24 19 39.3 - 41.9 70 19 16.5 - 19.9 16 11 19.2 - 21.8 70 8 41.1 - 43.7 24 20 41.1 - 43.7 70 20 18.4 - 21.8 16 12 21.0 - 23.6 70 9 43.0 - 45.6 20 21 43.0 - 45.1 70 21 22.8 - 25.4 70 10 44.8 - 47.4 16 22 44.8 - 46.2 70 22 24.7 - 27.3 70 11 26.5 - 29.1 70 12 * See Table 1-1 for transverse slope and crossing restrictions, and MLC 100(W) capability.  (T) = Tracked EXAMPLE: Given a mission to provide an MGB with an MLC and the reconnaissance report gives an AR Gap of 23.8m. Read down the AR Gap range columns under the different sections (A through D) until a range of gaps is found that will bracket the AR Gap given.  The first range found is 21.Om -23.6m, followed by a second range, 22.8m - 25.4m, which also brackets the AR Gap.  The procedure for determining which range to use will be discussed later.  What can be determined at this point is that a DS 2E+9 or a 2E+ 10 bay bridge will span the AR Gap given, provide a MLC 70 capability, and that you must go to paragraph 3-14 for further design procedures. c. Bridge Selected.  Using the bridge selected, go to the appropriate paragraph: * paragraph 3-12.4 - 12 Bay SS Design. * paragraph 3-13, 9-12 Bay SS Design on restricted sites. * paragraph 3-14, 2E+1 - 2E+12 Bay DS Design. * paragraph 3-15, 2E+1 - 2E+12 Bay Design on restricted sites. * paragraph 3-16, 2E+13 - 2E+22 Bay DS (w/oLRS) Design. * paragraph 3-17, 2E+13 - 2E+22 Bay DS (w/LRS) Design. 3-8 RIDGE CONSTRUCTION TIMES a. Building   times   for   various   bridge   lengths   are   given   in   Table   1-6.      These   times   are   figured   from   the downloading of the first pallet load on site to the opening of the bridge for traffic. 3-15