BRIDGE RECOVERY, SUCCESSIVE BAY METHOD
In the successive method, the bridge assembly is opened by disconnecting two interior
bays near either shore (depending on where the retrieval equipment is available) and
the shoreward endspans are then pulled back on shore approximately 5 ft (15 m). This
creates the space required to disconnect and maneuver the first interior bay from the
All bridge personnel must wear approved life jackets
while on the bridge. Failure to comply may result in
injury or death to personnel.
Exercise caution when walking near centerline of
roadway; the ponton alignment lugs project above the
roadway surface on interior bays and constitute a
tripping hazard. Failure to comply may result in injury to
Ensure roadway surface is free of rocks, mud, and debris
prior to bridge recovery.
a. Disconnect handrail ropes from interior bay (1) and ramp bay (4)
(WP 0010 00 and WP 0011 00).
Do not place fingers under longitudinal upper couplings
when opening them, or serious injury to personnel may
b. Open two longitudinal upper couplings (3) on interior bay (1) and ramp bay (4).
Ensure longitudinal upper couplings are opened prior to
disengaging lower lock-drive pins, or damage to
equipment may result.
c. Install T-wrench on jackscrew (2) of lower lock-drive and turn counterclockwise
until lower lock-drive pin is fully retracted, then back off jackscrew (2) one full
d. Repeat step c for remaining lower lock-drive.
e. Open both pump access covers (5), set pump control valve levers (6) to UP, and
raise ramp bay (4) enough to relieve grounding. Close access covers (5).