ARMY TM 5-5420-212-10-1
MARINE CORPS TM 08676A-10/1-1
Section I. GENERAL
Introduction. The construction (assembly) and delaunch (disassembly) of single story bridges is described in
step by step procedures in this chapter.
The assembly procedures start with the setting up and alignment of the roller beam, followed by step by step
assembly instructions to construct the bridge. Similarly, disassembly procedures contain full step by step instructions.
Disassembly is not the exact reverse of assembly; there are differences, therefore the step by step procedures shall be
followed carefully. These procedures are covered in more detail in Chapter 4 General Drills. The operator should be
familiar with these drills before following the step by step procedures in this chapter.
When familiarity is gained with the step by step procedures, any single story 4 through12 bay bridge can be
assembled using the Building and Boom Tables, and disassembled using the Delaunch Tables.
Do not attempt to use the Tables until the standard drills and the step by step procedures have
been practiced a number of times.
Short single story bridges up to 5 bays long can be launched by vehicle and push bar or manually PUSH
LAUNCHED off the roller beam. A push launch can only be performed if:-
It is operationally necessary.
There is no packing under roller beam baseplate.
Launching nose light front removed before bridge is allowed to fall.
Sufficient space is available between roller beam and landing roller.
The bridge is pushed by hand and not by push bar.
The final push will be strong enough for bridge to fall clear of roller beam.
If the site is hard (man made) sand bags must be placed under rear bankseat beam.