There are four road bridges that cross the Otonabee River within the city limits of Peterborough. The most northerly one is the Nassau Mills Road Bridge near Trent University. The next most northerly bridge is the Parkhill Road Bridge. The Hunter Street Bridge crosses the river just north of Little Lake, linking East City with the downtown core. The most southerly bridge is the Lansdowne Street Bridge. In addition, Highway 115 crosses the river near the southern edge of the city. There are also numerous other bridges which cross the Trent Canal (notably the crossing at the lift lock which actually passes under the canal), Jackson Creek and the other minor creeks in the city. There are also numerous other river crossings throughout the CMA, the longest of which is the James A. Gifford Causeway, which crosses Chemong Lake linking Bridgenorth with Ennismore.