A persistent onshore flow and unusually high astronomical tides associated with the new moon resulted in widespread moderate coastal flooding along the bays and other tidal waterways in Delaware.  The flooding occurred across two consecutive high tide cycles, from the evening of September 9 through the early afternoon of September 10.

Coastal Flood in INLAND SUSSEX, DELAWARE
From 09-SEP-18 18:00:00 to 10-SEP-18 01:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Moderate flooding occurred along the bays and other tidal waterways in Sussex  County.  The tide gauge at Lewes reached 7.95 feet MLLW.  The tide gauge at Dewey Beach reached 4.35 feet MLLW.  The tide gauge at Rosedale Beach reached 6.34 feet MLLW.  The tide gauge at Indian River Inlet reached 5.87 feet MLLW.

Coastal Flood in DELAWARE BEACHES, DELAWARE
From 10-SEP-18 07:00:00 to 10-SEP-18 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Moderate flooding occurred along the bays and other tidal waterways in Sussex  County.  The tide gauge at Dewey Beach reached 4.11 feet MLLW.  The tide gauge at Rosedale Beach reached 5.65 feet MLLW.  The tide gauge at Indian River Inlet reached 5.31 feet MLLW.

Coastal Flood in KENT, DELAWARE
From 09-SEP-18 19:00:00 to 10-SEP-18 00:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Moderate flooding occurred along Delaware Bay and other tidal waterways in Kent County.  The tide gauge at Bowers Beach reached 8.52 feet MLLW.  Widespread roadway flooding occurred.  Sections of DE Route 9 were closed in the northeastern part of the county.  Sections of DE Route 6 were closed to the east of Smyrna and leading into Woodland Beach.  Big Stone Beach Road was closed due to flooding.  South Little Creek Road was closed to the east of Dover.  Main Street in Bowers was flooded.

Coastal Flood in KENT, DELAWARE
From 10-SEP-18 09:00:00 to 10-SEP-18 11:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Moderate flooding occurred along Delaware Bay and other tidal waterways in Kent County.  The tide gauge at Bowers Beach reached 7.60 feet MLLW.  Widespread roadway flooding occurred.  Bowers Beach Road was closed near Bowers.  South Bowers Road and Wells Cut-Off were closed near South Bowers.

Coastal Flood in NEW CASTLE, DELAWARE
From 09-SEP-18 21:00:00 to 10-SEP-18 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Moderate flooding occurred along the far upper Delaware Bay, the far lower Delaware River and its tidal tributaries in New Castle County.  The tide gauge at Newport reached 8.89 feet MLLW.  The tide gauge at Wilmington reached 9.02 feet MLLW.  The tide gauge at Delaware City reached 9.09 feet MLLW.  The tide gauge at Reedy Point reached 8.63 feet MLLW.  Sections of DE Route 9 south of New Castle were closed due to flooding.

Coastal Flood in NEW CASTLE, DELAWARE
From 10-SEP-18 10:30:00 to 10-SEP-18 13:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Moderate flooding occurred along the far upper Delaware Bay, the far lower Delaware River and its tidal tributaries in New Castle County.  The tide gauge at Newport reached 8.21 feet MLLW.  The tide gauge at Wilmington reached 8.42 feet MLLW.  The tide gauge at Reedy Point reached 8.22 feet MLLW.  Sections of DE Route 9 south of New Castle were closed due to flooding.  There was roadway flooding in Odessa.

Coastal Flood in DELAWARE BEACHES, DELAWARE
From 09-SEP-18 18:00:00 to 10-SEP-18 01:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Moderate flooding occurred along the bays and other tidal waterways in Sussex  County.  The tide gauge at Lewes reached 7.95 feet MLLW.  The tide gauge at Dewey Beach reached 4.35 feet MLLW.  The tide gauge at Rosedale Beach reached 6.34 feet MLLW.  The tide gauge at Indian River Inlet reached 5.87 feet MLLW.  Widespread roadway flooding occurred.  Portions of DE Route 1 near Dewey Beach were flooded.

Coastal Flood in INLAND SUSSEX, DELAWARE
From 10-SEP-18 07:00:00 to 10-SEP-18 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Moderate flooding occurred along the bays and other tidal waterways in Sussex  County.  The tide gauge at Dewey Beach reached 4.11 feet MLLW.  The tide gauge at Rosedale Beach reached 5.65 feet MLLW.  The tide gauge at Indian River Inlet reached 5.31 feet MLLW.  Widespread roadway flooding occurred.  Parts of River Road were flooded from Rosedale Beach to Oak Orchard.