Delaware River at Trenton

1. 25.00 ftThe Delaware River meets the Delaware Canal, backfilling the Rivermawr and Flats neighborhoods making all roads east of the canal impassable.
2. 24.50 ftCarr's Lane in Yardley begins to flood.
3. 23.00 ftNorth and South Bell Avenues in Yardley begin to flood.
4. 22.00 ftRoute 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.
5. 21.50 ftFerry Street in Yardley begins to flood.
6. 20.00 ftHouses 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. River Road (Route 32), north of Woodside Road and south of Mt. Eyre Road, in Lower Makefield Township, begins to flood.
7. 19.50 ftMorgan Avenue in Yardley Borough begins to flood. River Road (PA Rt 32) at East Ferry Road in Lower Makefield Township begins to flood.
8. 18.50 ftPA Route 32 South at East College Avenue in Yardley borough begins to flood. Water begins to enter Level 1 of the parking garage at the State Capital Building. Sections of Stacey Park in Trenton are closed.
9. 18.00 ftPA Route 32 North is closed between Brown Street and Maple Avenue.
10. 17.00 ftPA Route 32 North in Yardley Borough begins to flood between Brown Street and Maple Avenue.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.

Most recent crests

• September 3, 2021: 20.76 ft
• January 15, 2018: 19.93 ft
• May 1, 2014: 16.46 ft
• January 9, 2014: 20.76 ft
• September 9, 2011: 22.16 ft
• August 29, 2011: 20.49 ft
• March 12, 2011: 20.59 ft
• October 2, 2010: 17.85 ft
• June 29, 2006: 25.09 ft
• January 20, 2006: 17.23 ft

• UpstreamDelaware River at Washington Crossing
• DownstreamDelaware River at Newbold Island (IN MLLW)
• Assunpink Creek at Trenton
• Assunpink Creek at Mercerville
• Shabakunk Creek at Ewingville
• Assunpink Creek at Clarksville
• Stony Brook at Princeton
• Neshaminy Creek at Langhorne

Forecasts by the Middle Atlantic River Forecast Center. Forecasts are issued routinely year-round.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.