ARMY   TM   5-5420-212-10-1 MARINE CORPS TM 08676A-10/1-1 13-13 SINGLE STORY 9 thru 12 BAY DESIGN ON RESTRICTED SITES The design procedures for SS bridges (9 through 12 bay) on restricted sites is the same as for normal sites except that: a. The maximum R Distance during construction is 8.2 m, see Table 3-14. b. The launching nose length is increased by one launching nose heavy (LNH) section, see Table 3-14. c. Counterweights are required as described, see Table 3-14. TABLE   3-14. SS Bridges (9 through 12 bay) on Restricted Sites No. of Bays R Distance Nose   Const Counterweights Required 9 8.2 6N1 1   BSB,  3  Deck  units,  2  Top panels 10 8.2 6N1 1  BSB,  3  Deck units,  2  Top  panels 11 8.2 7N1 1   BSB,  3  Deck units,  4 Top panels 12 8.2 7N1 1  BSB,  3  Deck  units,  4 Top panels 13-14 DOUBLE STORY 2E + 1 thru 2E + 12 BAY DESIGN The procedures that follow are for design of DS 2E + 1 thru 2E + 12 bay MGBs on normal sites only: a. Measure the AR Gap (para. 3-10a) b. Select a bridge (para. 3-10b and Table 3-15) TABLE   3-15. DS MGB Design 2E + 1 thru 2E +12 Bays Site and Bridge Dimensions 2E + No. of Bridge AR Gap Ranges MLC* Bays Length  L R  Distance Nose Const (a) (b) (c) (d) (e) ( f ) 6.4   -   9.0 1 11.0 10.0 2N1 8.2   -   10.8 2 12.8 11.9 10.0  -  12.6 3 14.6 12.2 3N1 11.9  -  14.5 4 16.5 13.1 13.7  -  16.3 ALL 5 18.3 14.9 15.5  -  18.1 MLC 6 20.1 14.9 4N1 17.3  -  19.9 70(T) 7 21.9 15.8 19.2  -  21.8 8 23.8 16.8 21.0   -   23.6 9 25.6 17.7 5N1 22.8   -   25.4 10 27.4 19.5 24.7  -  27.3 11 29.3 20.4 6N1 26.5  -  29.1 12 31.1 21.6 6N1 * See step k. Slope Check and Table 1-1 for crossing restrictions and MLC 100(W) capability. (T) = Tracked 3-26 Change   2