TM 5-5420-209-12
Figure 2-24. Typical Configuration Bridge Boat Anchoring.
Table 2-15. Bridge Boats Required for Anchoring.
Water Speed
Boat Spacing
* Boats per Bays
F.P.M (MPS)
ft (m)
0-3 (0.-0.92
132 (40.3)
1 per 6
3-6 (0.92)
88 (26.8)
1 per 4
6-8 (1.83- 2.44)
66 (20)
1 per 3
8-9 (2.44 - 2.75)
44 (13.4)
1 per 2
Over 9 (2.75)
44 (13.4)
1 per 2
*Notes:
1. Table does not include safety or backup boats.
2. Backup boats must be added as required by the conditions such as water velocity or chance of loss of boat in anchorage line due
to enemy action debris, or mechanical failure. These boats maybe positioned in back of bridge line or attached to bridge line.
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