The 30 meter long, 186 dwt tug Thomas Dann was towing a crane vessel on the East River when the upright crane struck the scaffolding on the underbelly of the span of the Brooklyn Bridge.   The bridge suffered no structural damage, but a 20 by 75 foot section of the scaffold was damage or fell into the river below.   The scaffolding has been in place for several years to allow crews to repaint the bridge.  No reports of injuries.   Authorities are conducting an investigation into the incident.

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