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Weather Forecast Office Philadelphia/Mount Holly, NJ Middle Atlantic River Forecast Center
Hydrograph River at a Glance Download Inundation
Mapping		 Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Delaware River at Trenton Stage (ft)Flow (kcfs)Observed: 9.22 ft at 4:30PM May 18, 2013Observed: 9.22 ft at 4:45PM May 18, 2013Observed: 9.22 ft at 5:00PM May 18, 2013Observed: 9.22 ft at 5:15PM May 18, 2013Observed: 9.22 ft at 5:30PM May 18, 2013Observed: 9.22 ft at 5:45PM May 18, 2013Highest Observation: 9.23 ft at 6:00PM May 18, 2013Observed: 9.22 ft at 6:15PM May 18, 2013Observed: 9.22 ft at 6:30PM May 18, 2013Observed: 9.22 ft at 6:45PM May 18, 2013Observed: 9.22 ft at 7:00PM May 18, 2013Observed: 9.22 ft at 7:15PM May 18, 2013Observed: 9.22 ft at 7:30PM May 18, 2013Observed: 9.22 ft at 7:45PM May 18, 2013Observed: 9.22 ft at 8:00PM May 18, 2013Observed: 9.22 ft at 8:15PM May 18, 2013Observed: 9.22 ft at 8:30PM May 18, 2013Observed: 9.22 ft at 8:45PM May 18, 2013Observed: 9.22 ft at 9:00PM May 18, 2013Observed: 9.22 ft at 9:15PM May 18, 2013Observed: 9.22 ft at 9:30PM May 18, 2013Observed: 9.21 ft at 9:45PM May 18, 2013Observed: 9.21 ft at 10:00PM May 18, 2013Observed: 9.21 ft at 10:15PM May 18, 2013Observed: 9.19 ft at 11:30PM May 18, 2013Observed: 9.19 ft at 11:45PM May 18, 2013Observed: 9.19 ft at 12:00AM May 19, 2013Observed: 9.18 ft at 12:15AM May 19, 2013Observed: 9.18 ft at 12:30AM May 19, 2013Observed: 9.18 ft at 12:45AM May 19, 2013Observed: 9.18 ft at 1:00AM May 19, 2013Observed: 9.17 ft at 1:15AM May 19, 2013Observed: 9.17 ft at 1:30AM May 19, 2013Observed: 9.16 ft at 1:45AM May 19, 2013Observed: 9.16 ft at 2:00AM May 19, 2013Observed: 9.16 ft at 2:15AM May 19, 2013Observed: 9.16 ft at 2:30AM May 19, 2013Observed: 9.16 ft at 2:45AM May 19, 2013Observed: 9.16 ft at 3:00AM May 19, 2013Observed: 9.15 ft at 3:15AM May 19, 2013Observed: 9.15 ft at 3:30AM May 19, 2013Observed: 9.14 ft at 3:45AM May 19, 2013Observed: 9.14 ft at 4:00AM May 19, 2013Observed: 9.14 ft at 4:15AM May 19, 2013Observed: 9.13 ft at 4:30AM May 19, 2013Observed: 9.13 ft at 4:45AM May 19, 2013Observed: 9.12 ft at 5:00AM May 19, 2013Observed: 9.12 ft at 5:15AM May 19, 2013Observed: 9.12 ft at 5:30AM May 19, 2013Observed: 9.12 ft at 5:45AM May 19, 2013Observed: 9.12 ft at 6:00AM May 19, 2013Observed: 9.12 ft at 6:15AM May 19, 2013Observed: 9.12 ft at 6:30AM May 19, 2013Observed: 9.11 ft at 6:45AM May 19, 2013Observed: 9.11 ft at 7:00AM May 19, 2013Observed: 9.11 ft at 7:15AM May 19, 2013Observed: 9.11 ft at 7:30AM May 19, 2013Observed: 9.11 ft at 7:45AM May 19, 2013Observed: 9.1 ft at 8:00AM May 19, 2013Observed: 9.1 ft at 8:15AM May 19, 2013Observed: 9.1 ft at 8:30AM May 19, 2013Observed: 9.1 ft at 8:45AM May 19, 2013Observed: 9.1 ft at 9:00AM May 19, 2013Observed: 9.1 ft at 9:15AM May 19, 2013Observed: 9.1 ft at 9:30AM May 19, 2013Observed: 9.1 ft at 9:45AM May 19, 2013Observed: 9.1 ft at 10:00AM May 19, 2013Observed: 9.1 ft at 10:15AM May 19, 2013Observed: 9.1 ft at 10:30AM May 19, 2013Observed: 9.1 ft at 10:45AM May 19, 2013Observed: 9.1 ft at 11:00AM May 19, 2013Observed: 9.1 ft at 11:15AM May 19, 2013Observed: 9.1 ft at 11:30AM May 19, 2013Observed: 9.1 ft at 11:45AM May 19, 2013Observed: 9.1 ft at 12:00PM May 19, 2013Observed: 9.1 ft at 12:15PM May 19, 2013Observed: 9.11 ft at 12:30PM May 19, 2013Observed: 9.11 ft at 12:45PM May 19, 2013Observed: 9.11 ft at 1:00PM May 19, 2013Observed: 9.12 ft at 1:15PM May 19, 2013Observed: 9.12 ft at 1:30PM May 19, 2013Observed: 9.12 ft at 1:45PM May 19, 2013Observed: 9.12 ft at 2:00PM May 19, 2013Observed: 9.12 ft at 2:15PM May 19, 2013Observed: 9.13 ft at 2:30PM May 19, 2013Observed: 9.14 ft at 2:45PM May 19, 2013Observed: 9.14 ft at 3:00PM May 19, 2013Observed: 9.14 ft at 3:15PM May 19, 2013Observed: 9.14 ft at 3:30PM May 19, 2013Observed: 9.15 ft at 3:45PM May 19, 2013Observed: 9.15 ft at 4:00PM May 19, 2013Observed: 9.15 ft at 4:15PM May 19, 2013Observed: 9.16 ft at 4:30PM May 19, 2013Observed: 9.16 ft at 4:45PM May 19, 2013Observed: 9.16 ft at 5:00PM May 19, 2013Observed: 9.16 ft at 5:15PM May 19, 2013Observed: 9.16 ft at 5:30PM May 19, 2013Observed: 9.16 ft at 5:45PM May 19, 2013Observed: 9.16 ft at 6:00PM May 19, 2013Observed: 9.17 ft at 6:15PM May 19, 2013Observed: 9.17 ft at 6:30PM May 19, 2013Observed: 9.17 ft at 6:45PM May 19, 2013Observed: 9.17 ft at 7:00PM May 19, 2013Observed: 9.17 ft at 7:15PM May 19, 2013Observed: 9.17 ft at 7:30PM May 19, 2013Observed: 9.17 ft at 7:45PM May 19, 2013Observed: 9.17 ft at 8:00PM May 19, 2013Observed: 9.16 ft at 8:15PM May 19, 2013Observed: 9.16 ft at 8:30PM May 19, 2013Observed: 9.16 ft at 8:45PM May 19, 2013Observed: 9.16 ft at 9:00PM May 19, 2013Observed: 9.16 ft at 9:15PM May 19, 2013Observed: 9.16 ft at 9:30PM May 19, 2013Observed: 9.16 ft at 9:45PM May 19, 2013Observed: 9.16 ft at 10:00PM May 19, 2013Observed: 9.16 ft at 10:15PM May 19, 2013Observed: 9.16 ft at 10:30PM May 19, 2013Observed: 9.16 ft at 10:45PM May 19, 2013Observed: 9.16 ft at 11:00PM May 19, 2013Observed: 9.16 ft at 11:15PM May 19, 2013Observed: 9.16 ft at 11:30PM May 19, 2013Observed: 9.16 ft at 11:45PM May 19, 2013Observed: 9.15 ft at 12:00AM May 20, 2013Observed: 9.15 ft at 12:15AM May 20, 2013Observed: 9.15 ft at 12:30AM May 20, 2013Observed: 9.15 ft at 12:45AM May 20, 2013Observed: 9.15 ft at 1:00AM May 20, 2013Observed: 9.15 ft at 1:15AM May 20, 2013Observed: 9.15 ft at 1:30AM May 20, 2013Observed: 9.15 ft at 1:45AM May 20, 2013Observed: 9.15 ft at 2:00AM May 20, 2013Observed: 9.15 ft at 2:15AM May 20, 2013Observed: 9.15 ft at 2:30AM May 20, 2013Observed: 9.15 ft at 2:45AM May 20, 2013Observed: 9.14 ft at 3:00AM May 20, 2013Observed: 9.14 ft at 3:15AM May 20, 2013Observed: 9.14 ft at 3:30AM May 20, 2013Observed: 9.14 ft at 3:45AM May 20, 2013Observed: 9.14 ft at 4:00AM May 20, 2013Observed: 9.14 ft at 4:15AM May 20, 2013Observed: 9.14 ft at 4:30AM May 20, 2013Observed: 9.14 ft at 4:45AM May 20, 2013Observed: 9.14 ft at 5:00AM May 20, 2013Observed: 9.14 ft at 5:15AM May 20, 2013Observed: 9.13 ft at 5:30AM May 20, 2013Observed: 9.13 ft at 5:45AM May 20, 2013Observed: 9.12 ft at 6:00AM May 20, 2013Observed: 9.12 ft at 6:15AM May 20, 2013Observed: 9.12 ft at 6:30AM May 20, 2013Observed: 9.12 ft at 6:45AM May 20, 2013Observed: 9.12 ft at 7:00AM May 20, 2013Observed: 9.12 ft at 7:15AM May 20, 2013Observed: 9.12 ft at 7:30AM May 20, 2013Observed: 9.11 ft at 7:45AM May 20, 2013Observed: 9.11 ft at 8:00AM May 20, 2013Observed: 9.1 ft at 8:15AM May 20, 2013Observed: 9.1 ft at 8:30AM May 20, 2013Observed: 9.1 ft at 8:45AM May 20, 2013Observed: 9.1 ft at 9:00AM May 20, 2013Observed: 9.09 ft at 9:15AM May 20, 2013Observed: 9.08 ft at 9:30AM May 20, 2013Observed: 9.08 ft at 9:45AM May 20, 2013Observed: 9.08 ft at 10:00AM May 20, 2013Observed: 9.08 ft at 10:15AM May 20, 2013Observed: 9.08 ft at 10:30AM May 20, 2013Observed: 9.07 ft at 10:45AM May 20, 2013Observed: 9.07 ft at 11:00AM May 20, 2013Observed: 9.07 ft at 11:15AM May 20, 2013Observed: 9.06 ft at 11:30AM May 20, 2013Observed: 9.06 ft at 11:45AM May 20, 2013Observed: 9.06 ft at 12:00PM May 20, 2013Observed: 9.06 ft at 12:15PM May 20, 2013Observed: 9.05 ft at 12:30PM May 20, 2013Observed: 9.04 ft at 12:45PM May 20, 2013Observed: 9.04 ft at 1:00PM May 20, 2013Observed: 9.04 ft at 1:15PM May 20, 2013Observed: 9.04 ft at 1:30PM May 20, 2013Observed: 9.04 ft at 1:45PM May 20, 2013Observed: 9.03 ft at 2:00PM May 20, 2013Observed: 9.03 ft at 2:15PM May 20, 2013Observed: 9.03 ft at 2:30PM May 20, 2013Observed: 9.02 ft at 2:45PM May 20, 2013Observed: 9.02 ft at 3:00PM May 20, 2013Observed: 9.02 ft at 3:15PM May 20, 2013Observed: 9.02 ft at 3:30PM May 20, 2013Observed: 9.01 ft at 3:45PM May 20, 2013Observed: 9.01 ft at 4:00PM May 20, 2013Observed: 9 ft at 4:15PM May 20, 2013Observed: 9 ft at 4:30PM May 20, 2013Observed: 9 ft at 4:45PM May 20, 2013Observed: 9 ft at 5:00PM May 20, 2013Observed: 9 ft at 5:15PM May 20, 2013Observed: 9 ft at 5:30PM May 20, 2013Observed: 9 ft at 5:45PM May 20, 2013Observed: 9 ft at 6:00PM May 20, 2013Observed: 9 ft at 6:15PM May 20, 2013Observed: 9 ft at 6:30PM May 20, 2013Observed: 9 ft at 6:45PM May 20, 2013Observed: 9 ft at 7:00PM May 20, 2013Observed: 9 ft at 7:15PM May 20, 2013Observed: 9 ft at 7:30PM May 20, 2013Observed: 9 ft at 7:45PM May 20, 2013Observed: 9 ft at 8:00PM May 20, 2013Observed: 9 ft at 8:15PM May 20, 2013Observed: 9 ft at 8:30PM May 20, 2013Observed: 9 ft at 8:45PM May 20, 2013Observed: 9 ft at 9:00PM May 20, 2013Observed: 9 ft at 9:15PM May 20, 2013Observed: 9 ft at 9:30PM May 20, 2013Observed: 9 ft at 9:45PM May 20, 2013Observed: 9 ft at 10:00PM May 20, 2013Observed: 9 ft at 10:15PM May 20, 2013Observed: 9 ft at 10:30PM May 20, 2013Observed: 9 ft at 10:45PM May 20, 2013Observed: 9 ft at 11:00PM May 20, 2013Observed: 9 ft at 11:15PM May 20, 2013Observed: 9 ft at 11:30PM May 20, 2013Observed: 9 ft at 11:45PM May 20, 2013Observed: 9 ft at 12:00AM May 21, 2013Observed: 9 ft at 12:15AM May 21, 2013Observed: 9 ft at 12:30AM May 21, 2013Observed: 9 ft at 12:45AM May 21, 2013Observed: 9 ft at 1:00AM May 21, 2013Observed: 9 ft at 1:15AM May 21, 2013Observed: 9 ft at 2:30AM May 21, 2013Observed: 9 ft at 2:45AM May 21, 2013Observed: 8.99 ft at 3:00AM May 21, 2013Observed: 8.99 ft at 3:15AM May 21, 2013Observed: 8.99 ft at 3:30AM May 21, 2013Observed: 8.99 ft at 3:45AM May 21, 2013Observed: 8.99 ft at 4:00AM May 21, 2013Observed: 8.99 ft at 4:15AM May 21, 2013Observed: 8.99 ft at 4:30AM May 21, 2013Observed: 8.99 ft at 4:45AM May 21, 2013Observed: 8.99 ft at 5:00AM May 21, 2013Observed: 8.98 ft at 5:15AM May 21, 2013Observed: 8.98 ft at 5:30AM May 21, 2013Observed: 8.98 ft at 5:45AM May 21, 2013Observed: 8.98 ft at 6:00AM May 21, 2013Observed: 8.98 ft at 6:15AM May 21, 2013Observed: 8.98 ft at 6:30AM May 21, 2013Observed: 8.98 ft at 6:45AM May 21, 2013Observed: 8.98 ft at 7:00AM May 21, 2013Observed: 8.98 ft at 7:15AM May 21, 2013Observed: 8.97 ft at 7:30AM May 21, 2013Observed: 8.97 ft at 7:45AM May 21, 2013Observed: 8.97 ft at 8:00AM May 21, 2013Observed: 8.96 ft at 8:15AM May 21, 2013Observed: 8.96 ft at 8:30AM May 21, 2013Observed: 8.96 ft at 8:45AM May 21, 2013Observed: 8.96 ft at 9:00AM May 21, 2013Observed: 8.96 ft at 9:15AM May 21, 2013Observed: 8.96 ft at 9:30AM May 21, 2013Observed: 8.96 ft at 9:45AM May 21, 2013Observed: 8.96 ft at 10:00AM May 21, 2013Observed: 8.96 ft at 10:15AM May 21, 2013Observed: 8.96 ft at 10:30AM May 21, 2013Observed: 8.96 ft at 10:45AM May 21, 2013Observed: 8.95 ft at 11:00AM May 21, 2013Observed: 8.95 ft at 11:15AM May 21, 2013Observed: 8.95 ft at 11:30AM May 21, 2013Observed: 8.94 ft at 11:45AM May 21, 2013Observed: 8.94 ft at 12:00PM May 21, 2013Observed: 8.94 ft at 12:15PM May 21, 2013Observed: 8.94 ft at 12:30PM May 21, 2013Observed: 8.94 ft at 12:45PM May 21, 2013Observed: 8.94 ft at 1:00PM May 21, 2013Observed: 8.94 ft at 1:15PM May 21, 2013Observed: 8.94 ft at 1:30PM May 21, 2013Observed: 8.94 ft at 1:45PM May 21, 2013Observed: 8.94 ft at 2:00PM May 21, 2013Observed: 8.94 ft at 2:15PM May 21, 2013Observed: 8.94 ft at 2:30PM May 21, 2013Observed: 8.94 ft at 2:45PM May 21, 2013Observed: 8.94 ft at 3:00PM May 21, 2013Observed: 8.94 ft at 3:15PM May 21, 2013Forecast: 8.9 ft 8:00PM May 21, 2013Forecast: 9 ft 2:00AM May 22, 2013Forecast: 9 ft 8:00AM May 22, 2013Forecast: 9 ft 2:00PM May 22, 2013Forecast: 9 ft 8:00PM May 22, 2013Forecast: 9 ft 2:00AM May 23, 2013Forecast: 9 ft 8:00AM May 23, 2013Forecast: 9 ft 2:00PM May 23, 2013Forecast: 9 ft 8:00PM May 23, 2013Forecast: 9.1 ft 2:00AM May 24, 2013Highest Forecast: 9.2 ft 8:00AM May 24, 2013USGS--Water Resources of the United StatesTREN4(plotting HGIRG) Graph Created (4:15PM May 21, 2013)ObservedForecast (issued 9:22AM May 21)Latest observed value: 8.94 ft at 3:15 PM EDT 21-May-2013. Flood Stage is 20 ft
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About this graph
Tabular Data
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts for the Delaware River at Trenton are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Washington Crossing Upstream Gauge Downstream Gauge Downstream Gauge - at USCG Station Washington Street
Flood Categories (in feet)
Major Flood Stage:25
Moderate Flood Stage:23
Flood Stage:20
Action Stage:17

Historical Crests
(1) 30.60 ft on 03/08/1904
(2) 28.60 ft on 08/20/1955
(3) 28.50 ft on 10/11/1903
(4) 25.33 ft on 04/04/2005
(5) 25.09 ft on 06/29/2006
Show More Historical Crests

Low Water Records
Legend
Gauge Location
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
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.
Photos
(1) Ice at the Trenton Gage
About This Location Collapse

Latitude: 40.221667° N, Longitude: 74.778056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 20 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 0 ft 20 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Other Data Sources:
Additional Information Collapse
During winter months, cold and ice may result in inaccurate real-time stream stage and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Philadelphia/Mount Holly Weather Forecast Office
732 Woodlane Road
Mount Holly, NJ 08060-9615
(609) 261-6600
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