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Indian River at Rosedale Beach (IN MLLW)

National Weather Service gauge IRRD1 · Delaware · Sussex County · 38.5915, -75.2116 · USGS 01484540

Stage at this gauge is reported IN MLLW.

Flood levels

Official flood levels at this gauge: minor flooding begins at 4.5 ft; moderate flooding begins at 5.5 ft; major flooding begins at 6.5 ft.

Minor flooding4.5 ft
Moderate flooding5.5 ft
Major flooding6.5 ft

Highest recorded crests

What the water does

National Weather Service impact statements for this gauge, in the Weather Service's own words.

4.5 ft(MLLW) MINOR FLOODING.
4.8 ft(MLLW) COASTAL FLOOD ADVISORY LEVEL.
4.9 ft(MLLW) Flooding begins in Oak Orchard, including River Road.
5.3 ft(MLLW) Flooding begins in Millsboro.
5.5 ft(MLLW) MODERATE FLOODING. At this level, widespread flooding of roadways begins with many roads becoming impassable near Indian River Bay and the tidal waterways that flow into it. Lives may be at risk when people put themselves in harm's way. Some damage to vulnerable strucures may begin to occur. COASTAL FLOOD WARNING LEVEL.
6.5 ft(MLLW) MAJOR FLOODING. At this level, flooding starts to become severe enough to begin causing structural damage along with widespread flooding of roadways near Indian River Bay and the tidal waterways that flow into it. Vulnerable homes and businesses may be severely damaged as water levels rise further above this threshold. Numerous roads become impassable and some neighborhoods may be isolated. The flood waters become a danger to anyone who attempts to cross on foot or in a vehicle.
6.8 ft(MLLW) The level reached on November 12, 2009.
7.0 ft(MLLW) The level reached on October 29, 2012 during Post Tropical Cyclone Sandy.
7.2 ft(MLLW) The level reached on January 23, 2016.
7.7 ft(Mean Lower Low Water (MLLW)) The level reached on February 5, 1998.

Forecast office: NWS Mount Holly · River Forecast Center: Middle Atlantic River Forecast Center.

A NOAA tide station shares this spot: Rosedale Beach, with tide predictions and official flood levels.

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