Not sure what he's talking about below.
You need to collect the driftwood down along the river, underneath the bridge @ 17.0S, 53.3W.
The path down to the river is behind the buildings on the east side of town. If you stand in front of Elsie Woodruff (17.3S, 53.8W), look right and you'll see a gap between two buildings; that's where the path begins.
Once you collect all the driftwood, talk to Supervisor Beecher once again. He will then have you repair the breaches in the bridge. The breaches are the open windows all along the bridge, click on them to repair.
Edited, Oct 7th 2007 10:07am by noonerman