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Somerset County Public Safety
Thursday September 2nd, 2021 :: 11:17 p.m. EDT

Advisory

Flood Warning until 05:36AM Saturday

The Flood Warning continues for the Millstone River At Blackwells Mills.

* Until late Friday night.

* At 10:15 PM EDT Thursday the stage was 18.3 feet.

* Flood stage is 9.0 feet.

* Major flooding is occurring and major flooding is forecast. This approaches the flood of record.

* Recent Activity...The maximum river stage in the 24 hours ending at 10:15 PM EDT Thursday was 20.8 feet.

* Forecast...The river is expected to fall below flood stage late tomorrow evening and continue falling to 2.9 feet Sunday evening.

* Impact...At 6.0 feet, The Griggstown Causeway is closed due to flooding.

* Impact...At 7.0 feet, Several more causeways are closed due to flooding.

* Impact...At 9.0 feet, Flood stage reached with flooding now along River Road in Blackwells Mills and S. River Street in Millstone. Base of Route 533 bridge floods. River Road between Yorktown and Amsterdam is subject to closure. Canal Road near Suydam Road floods.

* Impact...At 10.0 feet, The D&R Canal is flooded by the Millstone River.

* Impact...At 13.0 feet, Washington Street and several businesses are flooded.

* Flood History...This crest compares to a previous crest of 18.7 feet on 08/28/1971.

* AFFECTED AREAS: SOMERSET, NJ

Address/Location
Somerset County Public Safety
20 Grove St
Somerville, NJ 08876

Contact
Emergency: 9-1-1
Non-emergencies: 908-231-7140

Alert Details

Severity:
Severe - Significant threat to life or property
Urgency:
Immediate - Responsive action SHOULD be taken immediately
Certainty:
Observed - Determined to have occurred or to be ongoing
Category:
Meteorological (inc. flood)
Event:
Flood Warning

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