In reply to OMR:
The installation of both the interim bridge at Derry, and the eventual full-scale replacement bridge, are being substantially supported by the Scottish Rights of Way & Access Society, as a practical memorial to Donald Bennet, lifelong mountaineer and godfather to many of the SMC's hill-walking guidebooks, including the Munros & Corbetts guides. Details at
http://www.scotways.com/news/442-donald-bennet-memorial-appeal . All contributions will be put to very good use in securing this key crossing for the future !