Flood Impacts by Location

All listed locations are on the main stem Delaware River or Delaware Bay.

Location

Flood Categories in Feet
Source: National Weather Service's (NWS) Advanced Hydrologic Prediction Service (AHPS)

Flood Impacts by Water Level (in Feet)
Source: National Weather Service's (NWS)
Advanced Hydrologic Prediction Service (AHPS)
Callicoon, NY

Major Flood Stage:

14.8

Moderate Flood Stage:

13

Flood Stage:

12

Action Stage:

9

  • 16' - Maximum reading possible on automatic river gage.
  • 13' - Bank parking lot on New York side begins to flood.
  • 12' - Some homes on the New York side and north of the bridge in Callicoon begin to flood.
Barryville, NY

Major Flood Stage:

26

Moderate Flood Stage:

22

Flood Stage:

17

Action Stage:

15

  • 26.4' - Record flood from Hurricane Diane, August 19, 1955.
  • 22.2' - Rapid snow melt and heavy rain event of January 19 and 20, 1996.
  • 17' - Lowland flooding begins.
Matamoras, Pa./Port Jervis, NY

Major Flood Stage:

27

Moderate Flood Stage:

24

Flood Stage:

18

Action Stage:

16

  • 24' - Significant damage from widespread overtopping of flood walls on the New York and Pennsylvania sides of the river.
  • 22' - Low points along flood walls and the river banks are reached in Matamoras which threatens a considerable amount of inundation in town.
  • 19.5' - Inundation in Matamoras reaches area around Price Chopper along Pennsylvania Avenue.
  • 19' - Houses along Rose Lane in Matamoras are impacted by flood waters.
  • 18' - At flood stage, the Delaware River overflows into the railyard on the New York side. Water begins to back up into the south west side of Matamoras near 10th Street and Avenue S.
  • 16' - Delaware Drive upstream of Matamoras begins to flood. Property of Milford Senior Care facility is threatened.
  • 15' - Access Road to Mashipacong Island begins to take on water.
Montague, NJ

Major Flood Stage:

33

Moderate Flood Stage:

28

Flood Stage:

25

Action Stage:

23

  • 33.1' - Lowest point on Pennsylvania side of PA/NJ toll bridge between Milford and Montague.
  • 25' - Minor flooding in the park near river gage.
Tocks Island

Major Flood Stage:

25

Moderate Flood Stage:

23

Flood Stage:

21

Action Stage:

20

 
  • 30' - All Delaware Water Gap recreation resources are impacted, including natural and cultural resources, archeological sites, visitor use facilities, and infrastructure such as roads, bridges, and utilities.
  • 25' - Campsites in Worthington State Forest in New Jersey flood.
  • 23' - Route 209 is closed.
  • 22' - Many local roads that connect to Route 209, River Road, and other park roads are closed.
  • 21' - Approach roads to the Shawnee Inn flood. Route 209 begins to flood.
Belvidere, NJ

Major Flood Stage:

25

Moderate Flood Stage:

24

Flood Stage:

22

Action Stage:

18.5

 
  • 30.6' - The Belvidere-Riverton Bridge surface floods.
  • 23' - Approach roads to the Belvidere-Riverton Bridge in both New Jersey and Pennsylvania begin to flood. On the New Jersey side, Water Street begins to flood and in Pennsylvania, Martins Creek Belvidere Highway takes on water.
  • 20' - Backwater from the Delaware River cause problems in the town of Belvidere along the Pequest River.
  • 19' - River Road is flooded in Lopatcong Township.
  • 18.5' - Hutchinson River Road in Harmony Township takes on water.
  • 14' - Low lying areas downstream in Hutchinson and Brainards begin to flood.
Easton, PA

Major Flood Stage:

30

Moderate Flood Stage:

26

Flood Stage:

22

Action Stage:

20

 
  • 41' - The intersection of Third and Rose Streets in Phillipsburg begins to flood.
  • 39' - Union Square in Phillipsburg is flooded.
  • 38' - Approach roads on both sides of the Northampton Street bridge flood.
  • 34' - Portions of North Delaware Drive in Easton, closest to the river, begin to flood.
  • 31' - North Main Street at Broad Street in Phillipsburg is flooded.
  • 28' - Sawmill Street in Phillipsburg begins to flood due to a combination of Delaware River flooding and backwater effects from the Lopatcong Creek.
  • 26' - Flooding occurs in Easton up to Riverside Street.
  • 25' - Portions of Bushkill Drive and Route 611 are flooded due to a combination of Delaware River flooding and backwater effects on Bushkill Creek.
  • 24' - Larry Holmes Drive in Easton is subject to flooding. Riverside Way in Phillipsburg is flooded in the area of the boat ramp.
  • 20' - Minor flooding begins upstream in Harmony Station New Jersey and Sandts Eddy Pennsylvania.
  • 18' - Backwater from the Delaware causes flooding in Easton along the Lehigh River.
Riegelsville, NJ

Major Flood Stage:

30

Moderate Flood Stage:

26

Flood Stage:

22

Action Stage:

15

 
  • 30' - The town of Riegelsville, Pennsylvania begins to flood.
  • 26' - River Road in Carpentersville is flooded and is subject to closures. Street flooding begins in Riegelsville at the intersection of PA Route 611 and Sycamore Road.
  • 22' - Pohatcong Creek floods Creek Road due to high and backwater from the Delaware River. The Musconetcong River also floods Mount Joy Road due to high and backwater from the Delaware River.
  • 18' - River Road floods in Pohatcong Township, north of the bridge.
  • 15' - Treasure Island Scout Camp floods.
  • 14.5' - The entrance to Bull Island State Park is closed. Unsafe to cross over to Treasure Island Scout Camp.
Frenchtown, NJ

Major Flood Stage:

20

Moderate Flood Stage:

18

Flood Stage:

16

Action Stage:

14

 
  • 21' - Front Street and Railraod Avenue flood in Frenchtown.
  • 17' - Treasure Island Scout Camp is flooded. River Road in Erwinna Pennsylvania floods.
  • 16' - Portions of River Road and South Washington Street flood.
  • 15.5' - Portions of Trenton Avenue take on water.
  • 13' - Marshall Island is inundated.
  • 9' - Walls Island north of Frenchtown floods.
Stockton, NJ

Major Flood Stage:

24

Moderate Flood Stage:

20

Flood Stage:

18

Action Stage:

17

 
  • 26' - Main Street in Stockton is flooded. The entrance to Bull Island State Park is closed.
  • 22' - Railroad Avenue in stockton is flooded.
  • 19' - Point Pleasant, Pennsylvania begins to have flood problems.
  • 18' - Mill Street in Stockton is flooded as well as the Bull Island Campgrounds.
New Hope, PA/
Lambertville, NJ

Major Flood Stage:

16

Moderate Flood Stage:

15

Flood Stage:

13

Action Stage:

12

  • 26' - Extensive flooding in Lambertville with all of the low-lying areas of town inundated.
  • 17' - Water is up to the top of the Free Bridge piers.
  • 16.5' - Water is two-thirds of the way up Coryelle Street in New Hope.
  • 16' - Water is at the top of the wall in the Waterworks Parking Garage (river side) in New Hope.
  • 15' - River Road in New Hope begins to flood.
  • 14.5' - Park floods on East Ferry Street in New Hope. Patio floods in rear of The Landing. Waterview parking gages in New Hope begin to flood.
  • 14' - Water covers the entire parking garage at the Waterworks Condominiums in New Hope.
  • 13.5' - Flooding occurs on Waterloo Street in New Hope via storm sewers.
  • 13' - Water is at the top of the stone retaining wall at The Landing in New Hope. The Waterworks Condominium parking garage in New Hope begins to flood. Residents along the north and south ends of Lambert Lane in Lambertville sustain minor flooding, basements begin to flood.
  • 12.5' - The lower parking lot begins to flood at the Lambertville Station Inn and Restaurant.
Washington Crossing, PA

Major Flood Stage:

22

Moderate Flood Stage:

19

Flood Stage:

16

Action Stage:

12

 
  • 22.5' - Route 532 at the Canal bridge in Upper Makefield Township is impassable.
  • 16.5' - Flooding begins on Lower River Drive in Washington Crossing State Park. Flooding also occurs on Upper Drive near House #1 in the Titusville section of Hopewell Township.
  • 16' - River Road, between Mt. Eyre Road and Gilbert Street, in Upper Makefield Township begins to flood. First floor homes in the area take on water.
  • 14' - Intersection of River Road and overlook in Upper Makefield Township begins to flood.
  • 12' - Low points on the Pennsylvania Route 32 begin to flood.
  • 11.5' - The intersection of River Road and Jonathan Way just south of the canal in Upper Makefield Township begins to flood.
Trenton, NJ

Major Flood Stage:

25

Moderate Flood Stage:

23

Flood Stage:

20

Action Stage:

17

  • 25' - The Delaware River meets the Delaware Canal, backfilling the Rivermawr and Flats neighborhoods making all roads east of the canal impassable.
  • 24.5' - Carr's Lane in Yardley begins to flood.
  • 23' - North and South Bell Avenues in Yardley begin to flood.
  • 22' - Route 32 in Yardley is flooded in both directions. Up to two feet of water covers portions of Morgan Avenue, Brown Street, Maple Avenue, and Fuld Avenue.
  • 21.5' - Ferry Street in Yardley begins to flood.
  • 20.5' - Route 32 South at East College Avenue in Yardley borough begins to flood.
  • 20' - Houses on Brown Street in Yardley begin to take on water. Houses on Afton Avenue also take on water. Southbound lanes are closed along stretches of Route 29 in Trenton. Route 32 North is closed in Yardley borough.
  • 19.5' - Morgan Avenue in Yardley Borough begins to flood.
  • 18.5' - Water begins to enter level 1 of the parking garage at State Capitol Building. Sections of Stacey Park in Trenton are closed.
  • 18' - Route 32 North is closed between Brown Street and Maple Avenue.
  • 17' - Pa Route 32 North in Yardley Borough begins to flood between Brown Street and Maple Avenue.
Philadelphia, PA

Major Flood Stage:

10.2

Moderate Flood Stage:

9.2

Flood Stage:

8.2

Action Stage:

7.8

  • 10.6' - The level reached during Post Tropical Cyclone Sandy on October 30, 2012.
  • 10.5' - The level reached on November 25, 1950 and on April 17. 2011.
  • 10.4' - The level reached on December 21, 2012.
  • 10.2' - MAJOR FLOODING. At this level, widespread roadway flooding begins near the river and its tidal tributaries in the Pennsylvania counties of Philadelphia and Delaware, and in the New Jersey counties of Camden and Gloucester. 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.
  • 9.2' - MODERATE FLOODING. At this level, additional roadways near the river and its tidal tributaties in the Pennsylvania counties of Philadelphia and Delaware, and in the New Jersey counties of Camden and Gloucester 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.
  • 9' - Flooding begins along Columbus Boulevard in Philadelphia from Spring Garden Street to Washington Avenue. Generally, it is not a case of the river spilling over onto the roadway. The flooding problems tend to occur when the river is high and water begins to backup into the storm drains. Also, flooding begins in Tinicum Township PA between Philadelphia International Airport and Essington.
  • 8.8' - Flooding begins on North Park Drive in Pennsauken NJ. Water backs up into Cooper River Lake in Camden County NJ. Flooding begins on South Park Drive in Collingswood and Haddon Township NJ. Flooding begins along Woodbury Creek in Woodbury NJ. Flooding begins along the Nehonsey Brook in Gibbstown (Greenwich Township) NJ at South Poplar Street and Democrat Road.
  • 8.6' - Flooding begins along the Little Timber Creek between Gloucester City and Brooklawn NJ and around the Brooklawn Circle. Flooding begins along Timber Avenue, Edgewater Avenue and NJ Route 47 in Westville NJ. Flooding begins along Woodbury Creek and Hessian Run in West Deptford Township NJ and along Mantua Creek in Gloucester County NJ. Flooding begins along High Hill Road, Center Square Road and Pedricktown Road in Logan Township NJ. Flooding begins along US 130 at Oldmans Creek.
  • 8.4' - Flooding begins at the east end of Linden Avenue in Northeast Philadelphia. Flooding begins at the former Navy Shipyard in Philadelphia from both the Delaware River and the Schuylkill River. Flooding begins along Admiral Wilson Boulevard (US Route 30) and Baird Avenue in Camden NJ as the Cooper River overflows. The Repaupo Creek overflows onto Flood Gates Road in Greenwich Township and Logan Township NJ.
  • 8.2' - MINOR FLOODING
  • 7.8' - ACTION STAGE
Delaware Bay at Reedy Point, DE

Major Flood Stage:

9.2

Moderate Flood Stage:

8.2

Flood Stage:

7.2

Action Stage:

6.7

  • 9.2' - MAJOR FLOODING. At this level, widespread roadway flooding begins near the bay, the river and the tidal tributaries in New Castle County DE and Salem County NJ. 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.
  • 8.2' - MODERATE FLOODING. At this level, additional roadways near the bay, the river and the tidal tributaries in New Castle County DE and Salem County NJ 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.
  • 7.8' - Flooding begins along East 12th Street and along the south bank of the Christina River in Wilmington DE. Flooding begins where the Red Clay Creek, the White Clay Creek and the Christina River meet. The area is just to the west and northwest of the New Castle Airport and it includes the communities of Christiana, Glenville and Stanton DE. Flooding begins along the Appoquinimink River in Odessa DE. Flooding begins along NJ Route 49 and along Quinton-Alloway Road in Quinton Township NJ.
  • 7.6' - Flooding begins along Oldmans Creek at US Route 130 and near Pedrickton NJ. Flooding begins along Delaware Avenue and South Broad Street in Penns Grove NJ and along Delaware Avenue, Spring Street and Briar Avenue in Carneys Point NJ. Flooding begins along Riviera Drive and Hook Road in Pennsville Township NJ. Flooding begins along Pointers-Auburn Road and NJ Route 45 in Mannington Township NJ. Flooding begins along Sinnicksons Landing Road in Elsinboro Township NJ and along NJ Routes 45 and 49 in Salem.
  • 7.4' - Flooding begins in New Castle DE along the Strand and in the Dobbinsville section. Flooding begins along the section of DE Route 9 just to the south of New Castle DE and around the approaches to the DE Route 9 bridge over the Red Lion Creek. Flooding begins in Delaware City DE including the area around the 5th Street bridge. Flooding begins in Port Penn, Augustine Beach and Bay View Beach DE. Flooding begins around the approaches to the DE Route 9 bridge over the Appoquinimink River.
  • 7.2' - MINOR FLOODING
  • 6.7' - ACTION STAGE
Delaware Bay at Lewes, DE

Major Flood Stage:

8

Moderate Flood Stage:

7

Flood Stage:

6

Action Stage:

5.5

  • 9.3' - The level reached on January 23, 2016.
  • 9.2' - The level reached on March 6, 1962.
  • 8.8' - The level reached on January 4, 1992.
  • 8.7' - The level reached on October 29, 2012 during Post Tropical Cyclone Sandy.
  • 8.6' - The level reached on January 28, 1998.
  • 8.5' - The level reached on February 5, 1998.
  • 8' - MAJOR FLOODING. At this level, flooding starts to become severe enough to begin causing structural damage along with widespread flooding of roadways in the coastal communities of Sussex County and Kent County. Vulnerable homes and businesses may be severely damaged or destroyed 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.
  • 7' - MODERATE FLOODING. At this level, widespread flooding of roadways begins due to high water and/or wave action with many roads becoming impassable in the coastal communities of Sussex County and Kent County. Lives may be at risk when people put themselves in harm's way. Some damage to vulnerable structures may begin to occur.
  • 6.8' - DE Route 9 in Leipsic begins to flood in the vicinity of the Leipsic River. Flooding begins in Milford along the Mispillion River. Flooding begins in Broadkill Beach, including DE Route 16. Flooding begins in Rehoboth Beach along Surf Avenue and along the boardwalk. Flooding begins in Millsboro.
  • 6.6' - DE Route 9 (Main Street) in Little Creek begins to flood. Flooding begins in Milton along the Broadkill River. Flooding begins along Fred Hudson Road and Salt Pond Road (both are just north of Bethany Beach).
  • 6.4' - Flooding begins around the Mispillion Light and in Slaughter Beach. Flooding begins in Primehook Beach and along Primehook Road. Flooding begins along Bay Avenue, Cedar Street and Pilottown Road in Lewes. Flooding begins along Savannah Road (Business US Route 9) in Lewes in the vicinity of the Lewes and Rehoboth Canal. Flooding begins in Oak Orchard, including River Road. Flooding begins in Long Neck, including DE Route 23.
  • 6.2' - Flooding begins in Woodland Beach, Port Mahon, Pickering Beach, Kitts Hummock, Bowers Beach, Webb Landing, South Bowers and Big Stone Beach, and along the access roads into the communities. Kent County Route 107 near Barkers Landing begins to flood. Flooding begins at Old Landing on Rehoboth Bay. Flooding begins along sections of DE Route 1 between Dewey Beach and Bethany Beach, including the Delaware Seashore State Park. Flooding begins in Dewey Beach, Bethany Beach, South Bethany and Fenwick Island.
  • 6' - MINOR FLOODING
  • 5.5' - ACTION STAGE
Delaware Bay at Cape May, NJ

Major Flood Stage:

8.7

Moderate Flood Stage:

7.7

Flood Stage:

6.7

Action Stage:

6.2

  • 9' - The level reached on January 23, 2016. 
  • 8.9' - The level reached on October 29, 2012 during Post Tropical Cyclone Sandy. 
  • 8.8' - The level reached on September 27, 1985 during Hurricane Gloria. 
  • 8.7' - MAJOR FLOODING. At this level flooding starts to become severe enough to begin causing structural damage along with widespread flooding of roadways in the coastal communities of Cape May County and Cumberland County. Vulnerable homes and businesses may be severely damaged or destroyed 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.
  • 7.7' - MODERATE FLOODING. At this level, widespread flooding of roadways begins due to high water and/or wave action with many roads becoming impassable in the coastal communities of Cape May County and Cumberland County. Lives may be at risk when people put themselves in harm's way. Some damage to vulnerable structures may begin to occur.
  • 7.5' - Flooding begins along Bay Avenue on the north end of Ocean City, along the NJ Route 52 causeway and from 34th Street to 55th Street in Ocean City, in Strathmere, on Sea Isle Boulevard leading into Sea Isle City, on Central Avenue in Sea Isle City, on Avalon Boulevard near Garden State Parkway Exit 13, near the NJ Route 147 bridge into North Wildwood, near the Ocean Drive bridge between Wildwood Crest and Cape May, on Beach Avenue and New Jersey Avenue in Cape May, and between Cape May and West Cape May. 
  • 7.3' - Flooding begins along Landis Avenue in Sea Isle City (around 29th Street), around the Townsends Inlet Bridge (Cape May County Route 619) between Sea Isle City and Avalon, along Ocean Drive and Dune Drive in Avalon, around 96th Street in Stone Harbor, along Park Boulevard in Wildwood Crest and around Yacht Avenue in Cape May. 
  • 7.1' - Flooding begins on the access roads to the 9th Street bridge into Ocean City (NJ Route 52), in the Haven Avenue Basin area of Ocean City (24th Street through 34th Street), along Ocean Drive (Cape May County Route 619) between Ocean City and Strathmere, in North Wildwood and in West Wildwood. Flooding begins in Fortescue and Maurice River Township in Cumberland County. 
  • 6.9' - Flooding begins along the Delaware Bay shoreline from Reeds Beach to North Cape May. Flooding begins in Money Island and Gandys Beach in Cumberland County. 
  • 6.7' - MINOR FLOODING. Flooding begins on the access roads to the NJ Route 47 bridge into Wildwood (including Rio Grande Avenue). Flooding begins along the road into Fortescue (Cumberland County Route 637) and in Bivalve.
  • 6.5' - Flooding begins at the boat ramp in North Wildwood (the bay end of 5th Avenue). 
  • 6.2' - ACTION STAGE