I have never fished the lake, I see that there are alot of cribs do you fish around those or out in deeper water? Are there any areas besides near the bridge that have weak ice?
The flats adjascent to the river channel are always a good bet. The slough area on the north east side is another place to try for perch. Towards the south end of the lake there is a spring that is marked by pine trees, stay clear.