ARMY TM 5-5420-212-10-1
MARINE CORPS TM 08676A-10/1-1
Section III. RESTRICTED SITES
This section describes the procedures for assembly and disassembly of 2E + 12 bay double story bridges on
restricted sites. A site is considered restricted when the R distance (construction space) is less than the distance given in
Table 3-8, 3-15, 3-24 and 3-32.
This R distance can be reduced by as much as 3 bays by using launching noses one or two sections longer than
the standard launching nose and by booming the bridge more frequently. Table 6-29 gives the minimum R distance
possible when using launching nose longer than standard. The R distances do not include length of push bar or vehicle.
TABLE 6-23. Minimum R Distance when using longer than standard launching noses
2E + No. of
Bays
NOSE CONSTRUCTION
3N1
4N1
5N1
6N1
7N1
8N1
1
30 ft
9.1 m
2
30 ft
9.1 m
3
30 ft
9.1 m
4
30 ft
22 ft
9.1m
6.7 m
5
30 ft
24 ft
9.1 m
7.3 m
6
36 ft
30 ft
11.0
9.1 m
7
42 ft
36 ft
12.8 m
11.0 m
8
42 ft
36 ft
12.8 m
11.0 m
9
48 ft
42 ft
14.6 m
12.8 m
10
54 ft
42 ft
16.5 m
12.8 m
11
54 ft
42 ft
16.5 m
12.8 m
12
54 ft
48 ft
16.5 m
14.6 m
R Distances above do not include length of push bar or launching vehicle.
Since the procedures are very similar to bridges on normal sites, only the steps that are different will be detailed.
The operator should be familiar with the General Drills (Chapter 4) and the assembly and disassembly of double story
bridges on normal sites before attempting a restricted site build.
6-55
