31' - Notification level 9 with 43 to 53 gates open at Conowingo dam.<br><br>29.4' - Notification level 8 with 36 to 42 gates open at Conowingo Dam.<br><br>28.5' - Notification level 7 with 33 to 35 gates open at Conowingo Dam.<br><br>26.3' - Notification level 6 with 26 to 32 gates open at Conowingo Dam.<br><br>24.8' - Backyards and basements on Main Street and Tome's Landing begin to flood.<br><br>23.7' - Minor flooding begins in the town of Port Deposit, Maryland.<br><br>22.9' - Maryland Route 222 north of Port Deposit is closed.<br><br>21.5' - Notification level 2 with 12 to 15 gates open at Conowingo Dam.<br><br>20' - Notification level 1 with 10 to 11 gates open at Conowingo Dam.<br><br>