River Conditions
Illustrated map of Rehoboth Bay

River stage

Marcus Hook, Delaware River

River level
7.28 ft
Status
Below flood stage
Flood stage
7.70 ft
Record crest
10.14 ft
Moderate flood
8.70 ft

Last reported 2026-10-13 | NWS MRCP1

Record crest
10.14 ft
Flood stage
7.70 ft
Moderate flood
8.70 ft
Major flood
9.70 ft
Crest date
2012-10-30

In brief

The Delaware River at Marcus Hook, PA read 7.28 ft on Oct 13, 2026, 0.42 ft below minor flood stage.

Source: National Weather Service gauge MRCP1

Stage threshold profile

Minor flooding 7.70 ftModerate flooding 8.70 ftMajor flooding 9.70 ft CURRENT 7.28 ft

Highest crests on record

RankCrestDate
1 10.14 ft 2012-10-30
2 9.76 ft 2011-04-16
3 9.75 ft 2012-12-21
4 9.72 ft 2021-10-29
5 9.66 ft 2024-01-10
6 9.24 ft 2018-09-10
7 9.11 ft 2003-09-19
8 9.11 ft 2014-05-01

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 7.70 ft

    (MLLW) MINOR FLOODING.

  2. 7.90 ft

    (MLLW) The Repaupo Creek overflows onto Flood Gates Road in Greenwich Township and Logan Township NJ.

  3. 8.00 ft

    (MLLW) COASTAL FLOOD ADVISORY LEVEL.

  4. 8.10 ft

    (MLLW) Flooding begins along Mantua Creek in Gloucester County NJ. Flooding begins along Island Road, High Hill Road, Center Square Road and Pedricktown Road in Logan Township NJ. Flooding begins along US 130 at Oldmans Creek.

  5. 8.30 ft

    (MLLW) Flooding begins along the Nehonsey Brook in Gibbstown (Greenwich Township) NJ at South Poplar Street and Democrat Road.

  6. 8.50 ft

    (MLLW) Flooding begins in Tinicum Township PA between Philadelphia International Airport and Essington, and along the lower Darby Creek.

  7. 8.70 ft

    (MLLW) MODERATE FLOODING. At this level, additional roadways near the river and its tidal tributaries in Delaware County, Pennsylvania and Gloucester County, New Jersey begin to flood. Lives may be at risk when people put themselves in harm's way. Some damage to vulnerable structures may begin to occur. COASTAL FLOOD WARNING LEVEL.

  8. 9.70 ft

    (MLLW) MAJOR FLOODING. At this level, widespread roadway flooding begins near the river and its tidal tributaries in Delaware County, Pennsylvania and Gloucester County, New Jersey. Vulnerable homes and businesses may be 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.

  9. 9.72 ft

    (MLLW) The level reached on October 29, 2021.

  10. 9.75 ft

    (MLLW) The level reached on December 21, 2012.

Written by the local National Weather Service forecast office for this exact gauge.

Frequently asked questions

Is the Delaware River flooding at Marcus Hook?

No. The Delaware River at Marcus Hook is at 7.28 ft, 0.42 ft below minor flood stage.

What is the flood stage at Marcus Hook?

The National Weather Service sets minor flooding 7.7 ft, moderate flooding 8.7 ft and major flooding 9.7 ft.

What is the highest the Delaware River has been at Marcus Hook?

The highest crest on record is 10.14 ft, on 2012-10-30.

Stage and flood information from the NOAA National Weather Service (gauge MRCP1). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.