Flood Warning until 05:20AM Thursday 
The National Weather Service in Mount Holly has issued a
* Flood Warning for the Millstone River At Blackwells Mills.
* From this evening to early Thursday morning.
* At 7:15 AM EDT Tuesday the stage was 5.8 feet.
* Flood stage is 9.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage this evening to a crest of 10.4 feet tomorrow morning. It will then fall below flood stage late tomorrow 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.
* Flood History...This crest compares to a previous crest of 10.5 feet on 03/22/1999.
* 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