Rivers Flooding, Roadways Closed, Rainfall Amounts In Somerset County

SOMERSET COUNTY, NJ — A soggy weekend has caused flooding in Somerset County and road closures.

A flood warning by the National Weather Service(NWS) remains in effect through 4:45 p.m. on Monday.

The NWS also released the rainfall amount over the past 24 hours in Somerset County. Some areas received just under 2 inches:

• Green Brook - 1.99 inches
• Millstone - 1.88 inches
• Bridgewater - 1.82 inches
• Bedminster - 1.76 inches
• Skillman - 1.69 inches
• Manville - 1.52 inches
• Somerville - 1.43 inches
• Somerset - 1.42 inches
• Belle Mead - 1.36 inches
• Bound Brook - 1.25 inches
• Watchung - 1.22 inches
• Far Hills - 1.18 inches

Road Closures

Here is a list of the road closures:

• Opie Road at the intersection of River Road in Hillsborough
• River Road in Hillsborough going into Raritan
• The Griggstown Causeway and Blackwells Mills Causeway
• Blackwells Mills Causeway between Franklin and Hillsborough
• Two Bridges between Bridgewater and Branchburg
• Johnston Drive at Bonnie Burn Road in Watchung
• West Camplain Road in the eastbound lane from Pope Street to South Main Street in Manville
• Millstone River Road between Amsterdam Drive and Yorktown Road in Millstone Borough
• Route 605(River Road) in Montgomery between Blue Spring Road and Mercer County

The heavy rain has also caused rivers to crest and flood including the North Branch River at South Branch which is currently 8.83 feet high. This is in the minor flooding stage and just under the 9-foot moderate flooding stage.

Millstone River at Blackmills Causeway is in the minor flooding stage at 9.27 feet and approaching the moderate flooding stage at 10 feet.

The Millstone River at Griggstown is already in the moderate flooding stage at 13.23 under the major flooding stage at 15 feet.

The Raritan River at Manville is currently in the action stage of flooding at 12.15 feet.

Lamington (Black) River at Burnt Mills is also in the action stage of flooding at 9.74 feet.

A look ahead

While the rain has stopped for now, more is expected for most of the week, according to NWS.

Monday: Scattered showers, mainly after 5 p.m. Partly sunny, with a high near 59. Southwest wind around 15 mph. Chance of precipitation is 30 percent. New precipitation amounts of less than a tenth of an inch possible.

Monday Night: Scattered showers, mainly after 2 a.m. Mostly cloudy, with a low around 43. Southwest wind 5 to 10 mph. Chance of precipitation is 40 percent. New precipitation amounts of less than a tenth of an inch possible.

Tuesday: Showers likely, mainly before 2 p.m. Mostly cloudy, with a high near 56. Southwest wind 10 to 15 mph. Chance of precipitation is 70 percent. New precipitation amounts of less than a tenth of an inch possible.

Tuesday Night: A chance of showers before 8 p.m., then a slight chance of showers after 2 a.m. Mostly cloudy, with a low around 39. West wind 5 to 10 mph. Chance of precipitation is 30 percent. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: Showers likely, mainly after 2 p.m. Mostly cloudy, with a high near 55. West wind 5 to 10 mph. Chance of precipitation is 70 percent New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night: Showers likely, mainly before 8 p.m. Mostly cloudy, with a low around 40. Chance of precipitation is 60 percent. New precipitation amounts of less than a tenth of an inch possible.

Thursday: A chance of showers. Mostly cloudy, with a high near 58. Chance of precipitation is 50 percent.

Thursday Night: Mostly cloudy, with a low around 40.

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