Remove a steel truss bridge without closing the channel for long.
The old truss spans had to come out over open water, next to a new bridge already in service. Explosive charges dropped each span into the channel in a single planned event; from that moment the waterway was obstructed until the steel was recovered.
Seaward staged crane barges and tugs on site before the drop so recovery could begin as soon as the area was cleared, keeping the closure as short as possible.
Our Scope
- Pre-drop staging of crane barges, material barges and tugs
- Diver survey of dropped spans and rigging points underwater
- Crane-barge lifts of truss sections out of the channel
- Cutting and sizing steel on deck for transport
- Tug transport of steel to the offload site
- Final diver sweep to confirm a clear channel
Spans recovered and the channel cleared, with crews, cranes and tugs coming from one contractor.
Because Seaward owns the crane barges, tugs and dive spread, the recovery was planned, sequenced and executed by one team — no hand-offs between a lift contractor, a towing company and a dive subcontractor.
On the job
Over-water demolition or heavy lift?
Send drawings and specs — we'll review methods, equipment and schedule with you.