Whilst traveling down a mountain road, the heroes come to a halt when they find that the bridge across a chasm has been torched. That is just the first obstacle in the 3-encounter delve style side trek.
The Broken Bridge is designed for a party around levels 4-5, but could be easily adjusted. I originally sketched it out for use with my own group, before I happened upon the Orcs of Stonefang Pass, which I ended up running instead. However, that did not keep me from finishing the Broken Bridge delve, so I could share it here.
There are two separate downloads here. The Broken Bridge comes in a 6-page pdf file, but there is also a zip file containing the maps used in this delve. You can print these maps and play with them as is, or just use them as starting points for making your own. There are no custom monsters (links to DDI statblocks provided) or items, but a homegrown encounter hazard (The Bloated Mule) and a skill challenge are included with the delve.
Enjoy!