Incident Overview
A pilot decided to divert to Rampa Valley Airport due to weather conditions. Upon arrival, the pilot overflew the airport two times. An approach was made for landing, but the aircraft was high and fast, prompting a go-around. The pilot stated that the subsequent approach resulted in a normal landing.
Sequence of Events
After landing, the pilot reported being unable to obtain sufficient braking action on the wet runway. The aircraft continued off the departure end of the runway and went into a ditch. It was reported that the pilot had landed on the asphalt runway immediately after rain had stopped falling.
Pilot's Actions
Following the landing, the pilot decided not to execute a go-around because there were power lines near the departure end of the runway.