determined that this watercourse likely supports a seasonal fish community when flows in the Detroit River are high enough to allow fish to migrate upstream over the gravel beach barrier as this system discharges directly to the Detroit River.

Only the reach downstream of Sandwich Street was determined to be fish habitat as the hot water entering the channel from a pipe at Sandwich Street likely presents a thermal barrier to fish movement. This channelized watercourse flows through a detritus lined channel. Riparian vegetation consists of trees, shrubs and phragmites. There are numerous areas of active bank erosion along the banks. This fish habitat is considered marginal; however, if enhancement opportunities are available this habitat has the potential to increase in productive capacity.

3.1.2 Healy Drain

This watercourse is listed as a type F municipal drain, indicating that it is intermittent, and the temperature regime and potential fish species are unknown. Field investigations conducted in 2010 determined that this watercourse is likely intermittent as there was no flow, and only standing pools of water. The overall gradient of the watercourse appears to be low (0.3 - 0.5 %), there is no riffle-pool sequencing in this channel as it has been highly altered through ditching efforts. The channel substrates are comprised of clay and muck. The slow water velocities and the dense pockets of phragmites throughout the channel allow for fine sediment in this channel to settle out of suspension. It is unlikely that that this watercourse supports a fish community even when flows in the Detroit River are high enough. The buried culvert under Sandwich Street is also a barrier to fish movement.