the rapid spread of urbanization in thunder bay has caused the increase of impermeable surfaces and the increase in flood incidents within the city. another contributing factor to increased flood incidents is due to the lack of tree canopy cover within the city. because of increased frequency of intense storm events, stormwater management measures have been taken in the form of low impact development (lid) sites to increase infiltration and filtration rates of city precipitation. the number of current lid sites around town is relatively small and three of these sites have been herein analysed. the three sites are the beverley street lid, d&r sporting goods lid and the mcvicar creek lid. future lid sites have also been analysed and their effects hypothesized.