The old wooden jetty is just about due for replacement. Why not go the whole hog, floating pontoon, bridge, and fixed walkway?
Under my licence I am permitted to instal a jetty 9.6m x 1.3m, a sliding ramp 4.5m x 0.5m, and a pontoon 5.0m x 2.5m with supporting arms 6m long.
I've asked Marine Dock Systems to send me more details and pricing.
Watch this space!