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Hydrograph River at a Glance Download Inundation
Mapping
Delaware River at New Hope-Lambertville Bridge Stage (ft)Observed: 2.49 ft at 6:30PM Dec 04, 2023Observed: 2.49 ft at 6:45PM Dec 04, 2023Observed: 2.5 ft at 7:00PM Dec 04, 2023Observed: 2.5 ft at 7:15PM Dec 04, 2023Observed: 2.51 ft at 7:30PM Dec 04, 2023Observed: 2.52 ft at 7:45PM Dec 04, 2023Observed: 2.53 ft at 8:00PM Dec 04, 2023Observed: 2.53 ft at 8:15PM Dec 04, 2023Observed: 2.54 ft at 8:30PM Dec 04, 2023Observed: 2.55 ft at 8:45PM Dec 04, 2023Observed: 2.56 ft at 9:00PM Dec 04, 2023Observed: 2.57 ft at 9:15PM Dec 04, 2023Observed: 2.57 ft at 9:30PM Dec 04, 2023Observed: 2.58 ft at 9:45PM Dec 04, 2023Observed: 2.59 ft at 10:00PM Dec 04, 2023Observed: 2.59 ft at 10:15PM Dec 04, 2023Observed: 2.6 ft at 10:30PM Dec 04, 2023Observed: 2.6 ft at 10:45PM Dec 04, 2023Observed: 2.6 ft at 11:00PM Dec 04, 2023Observed: 2.61 ft at 11:15PM Dec 04, 2023Observed: 2.61 ft at 11:30PM Dec 04, 2023Observed: 2.61 ft at 11:45PM Dec 04, 2023Observed: 2.61 ft at 12:00AM Dec 05, 2023Observed: 2.61 ft at 12:15AM Dec 05, 2023Observed: 2.61 ft at 12:30AM Dec 05, 2023Observed: 2.61 ft at 12:45AM Dec 05, 2023Observed: 2.61 ft at 1:00AM Dec 05, 2023Observed: 2.61 ft at 1:15AM Dec 05, 2023Observed: 2.61 ft at 1:30AM Dec 05, 2023Observed: 2.6 ft at 1:45AM Dec 05, 2023Observed: 2.6 ft at 2:00AM Dec 05, 2023Observed: 2.6 ft at 2:15AM Dec 05, 2023Observed: 2.6 ft at 2:30AM Dec 05, 2023Observed: 2.59 ft at 2:45AM Dec 05, 2023Observed: 2.59 ft at 3:00AM Dec 05, 2023Observed: 2.59 ft at 3:15AM Dec 05, 2023Observed: 2.58 ft at 3:30AM Dec 05, 2023Observed: 2.58 ft at 3:45AM Dec 05, 2023Observed: 2.58 ft at 4:00AM Dec 05, 2023Observed: 2.58 ft at 4:15AM Dec 05, 2023Observed: 2.58 ft at 4:30AM Dec 05, 2023Observed: 2.57 ft at 4:45AM Dec 05, 2023Observed: 2.58 ft at 5:00AM Dec 05, 2023Observed: 2.57 ft at 5:15AM Dec 05, 2023Observed: 2.57 ft at 5:30AM Dec 05, 2023Observed: 2.57 ft at 5:45AM Dec 05, 2023Observed: 2.57 ft at 6:00AM Dec 05, 2023Observed: 2.57 ft at 6:15AM Dec 05, 2023Observed: 2.57 ft at 6:30AM Dec 05, 2023Observed: 2.57 ft at 6:45AM Dec 05, 2023Observed: 2.58 ft at 7:00AM Dec 05, 2023Observed: 2.58 ft at 7:15AM Dec 05, 2023Observed: 2.57 ft at 7:30AM Dec 05, 2023Observed: 2.58 ft at 7:45AM Dec 05, 2023Observed: 2.59 ft at 8:00AM Dec 05, 2023Observed: 2.6 ft at 8:15AM Dec 05, 2023Observed: 2.6 ft at 8:30AM Dec 05, 2023Observed: 2.6 ft at 8:45AM Dec 05, 2023Observed: 2.61 ft at 9:00AM Dec 05, 2023Observed: 2.61 ft at 9:15AM Dec 05, 2023Observed: 2.62 ft at 9:30AM Dec 05, 2023Observed: 2.62 ft at 9:45AM Dec 05, 2023Observed: 2.63 ft at 10:00AM Dec 05, 2023Observed: 2.63 ft at 10:15AM Dec 05, 2023Observed: 2.64 ft at 10:30AM Dec 05, 2023Observed: 2.65 ft at 10:45AM Dec 05, 2023Observed: 2.66 ft at 11:00AM Dec 05, 2023Observed: 2.67 ft at 11:15AM Dec 05, 2023Observed: 2.68 ft at 11:30AM Dec 05, 2023Observed: 2.68 ft at 11:45AM Dec 05, 2023Observed: 2.69 ft at 12:00PM Dec 05, 2023Observed: 2.7 ft at 12:15PM Dec 05, 2023Observed: 2.7 ft at 12:30PM Dec 05, 2023Observed: 2.71 ft at 12:45PM Dec 05, 2023Observed: 2.72 ft at 1:00PM Dec 05, 2023Observed: 2.73 ft at 1:15PM Dec 05, 2023Observed: 2.74 ft at 1:30PM Dec 05, 2023Observed: 2.75 ft at 1:45PM Dec 05, 2023Observed: 2.76 ft at 2:00PM Dec 05, 2023Observed: 2.77 ft at 2:15PM Dec 05, 2023Observed: 2.77 ft at 2:30PM Dec 05, 2023Observed: 2.78 ft at 2:45PM Dec 05, 2023Observed: 2.79 ft at 3:00PM Dec 05, 2023Observed: 2.8 ft at 3:15PM Dec 05, 2023Observed: 2.81 ft at 3:30PM Dec 05, 2023Observed: 2.82 ft at 3:45PM Dec 05, 2023Observed: 2.84 ft at 4:00PM Dec 05, 2023Observed: 2.84 ft at 4:15PM Dec 05, 2023Observed: 2.85 ft at 4:30PM Dec 05, 2023Observed: 2.86 ft at 4:45PM Dec 05, 2023Observed: 2.87 ft at 5:00PM Dec 05, 2023Observed: 2.88 ft at 5:15PM Dec 05, 2023Observed: 2.89 ft at 5:30PM Dec 05, 2023Observed: 2.9 ft at 5:45PM Dec 05, 2023Observed: 2.9 ft at 6:00PM Dec 05, 2023Observed: 2.91 ft at 6:15PM Dec 05, 2023Observed: 2.91 ft at 6:30PM Dec 05, 2023Observed: 2.92 ft at 6:45PM Dec 05, 2023Observed: 2.92 ft at 7:00PM Dec 05, 2023Observed: 2.92 ft at 7:15PM Dec 05, 2023Highest Observation: 2.93 ft at 7:30PM Dec 05, 2023Highest Observation: 2.93 ft at 7:45PM Dec 05, 2023Highest Observation: 2.93 ft at 8:00PM Dec 05, 2023Highest Observation: 2.93 ft at 8:15PM Dec 05, 2023Highest Observation: 2.93 ft at 8:30PM Dec 05, 2023Highest Observation: 2.93 ft at 8:45PM Dec 05, 2023Highest Observation: 2.93 ft at 9:00PM Dec 05, 2023Highest Observation: 2.93 ft at 9:15PM Dec 05, 2023Highest Observation: 2.93 ft at 9:30PM Dec 05, 2023Highest Observation: 2.93 ft at 9:45PM Dec 05, 2023Highest Observation: 2.93 ft at 10:00PM Dec 05, 2023Observed: 2.92 ft at 10:15PM Dec 05, 2023Observed: 2.92 ft at 10:30PM Dec 05, 2023Observed: 2.92 ft at 10:45PM Dec 05, 2023Observed: 2.91 ft at 11:00PM Dec 05, 2023Observed: 2.91 ft at 11:15PM Dec 05, 2023Observed: 2.9 ft at 11:30PM Dec 05, 2023Observed: 2.9 ft at 11:45PM Dec 05, 2023Observed: 2.9 ft at 12:00AM Dec 06, 2023Observed: 2.9 ft at 12:15AM Dec 06, 2023Observed: 2.89 ft at 12:30AM Dec 06, 2023Observed: 2.89 ft at 12:45AM Dec 06, 2023Observed: 2.88 ft at 1:00AM Dec 06, 2023Observed: 2.88 ft at 1:15AM Dec 06, 2023Observed: 2.87 ft at 1:30AM Dec 06, 2023Observed: 2.87 ft at 1:45AM Dec 06, 2023Observed: 2.86 ft at 2:00AM Dec 06, 2023Observed: 2.86 ft at 2:15AM Dec 06, 2023Observed: 2.85 ft at 2:30AM Dec 06, 2023Observed: 2.85 ft at 2:45AM Dec 06, 2023Observed: 2.84 ft at 3:00AM Dec 06, 2023Observed: 2.84 ft at 3:15AM Dec 06, 2023Observed: 2.84 ft at 3:30AM Dec 06, 2023Observed: 2.83 ft at 3:45AM Dec 06, 2023Observed: 2.82 ft at 4:00AM Dec 06, 2023Observed: 2.82 ft at 4:15AM Dec 06, 2023Observed: 2.81 ft at 4:30AM Dec 06, 2023Observed: 2.81 ft at 4:45AM Dec 06, 2023Observed: 2.8 ft at 5:00AM Dec 06, 2023Observed: 2.8 ft at 5:15AM Dec 06, 2023Observed: 2.79 ft at 5:30AM Dec 06, 2023Observed: 2.78 ft at 5:45AM Dec 06, 2023Observed: 2.78 ft at 6:00AM Dec 06, 2023Observed: 2.77 ft at 6:15AM Dec 06, 2023Observed: 2.77 ft at 6:30AM Dec 06, 2023Observed: 2.76 ft at 6:45AM Dec 06, 2023Observed: 2.76 ft at 7:00AM Dec 06, 2023Observed: 2.75 ft at 7:15AM Dec 06, 2023Observed: 2.75 ft at 7:30AM Dec 06, 2023Observed: 2.73 ft at 7:45AM Dec 06, 2023Observed: 2.72 ft at 8:00AM Dec 06, 2023Observed: 2.72 ft at 8:15AM Dec 06, 2023Observed: 2.71 ft at 8:30AM Dec 06, 2023Observed: 2.7 ft at 8:45AM Dec 06, 2023Observed: 2.7 ft at 9:00AM Dec 06, 2023Observed: 2.69 ft at 9:15AM Dec 06, 2023Observed: 2.68 ft at 9:30AM Dec 06, 2023Observed: 2.67 ft at 9:45AM Dec 06, 2023Observed: 2.66 ft at 10:00AM Dec 06, 2023Observed: 2.62 ft at 10:15AM Dec 06, 2023Observed: 2.61 ft at 10:30AM Dec 06, 2023Observed: 2.63 ft at 10:45AM Dec 06, 2023Observed: 2.6 ft at 11:00AM Dec 06, 2023Observed: 2.61 ft at 11:15AM Dec 06, 2023Observed: 2.59 ft at 11:30AM Dec 06, 2023Observed: 2.58 ft at 11:45AM Dec 06, 2023Observed: 2.59 ft at 12:00PM Dec 06, 2023Observed: 2.57 ft at 12:15PM Dec 06, 2023Observed: 2.57 ft at 12:30PM Dec 06, 2023Observed: 2.57 ft at 12:45PM Dec 06, 2023Observed: 2.56 ft at 1:00PM Dec 06, 2023Observed: 2.57 ft at 1:15PM Dec 06, 2023Observed: 2.56 ft at 1:30PM Dec 06, 2023Observed: 2.56 ft at 1:45PM Dec 06, 2023Observed: 2.6 ft at 2:00PM Dec 06, 2023Observed: 2.56 ft at 2:15PM Dec 06, 2023Observed: 2.54 ft at 2:30PM Dec 06, 2023Observed: 2.56 ft at 2:45PM Dec 06, 2023Observed: 2.56 ft at 3:00PM Dec 06, 2023Observed: 2.56 ft at 3:15PM Dec 06, 2023Observed: 2.52 ft at 3:30PM Dec 06, 2023Observed: 2.56 ft at 3:45PM Dec 06, 2023Observed: 2.57 ft at 4:00PM Dec 06, 2023Observed: 2.57 ft at 4:15PM Dec 06, 2023Observed: 2.56 ft at 4:30PM Dec 06, 2023Observed: 2.58 ft at 4:45PM Dec 06, 2023Observed: 2.59 ft at 5:00PM Dec 06, 2023Observed: 2.62 ft at 5:15PM Dec 06, 2023Observed: 2.63 ft at 5:30PM Dec 06, 2023Observed: 2.62 ft at 5:45PM Dec 06, 2023Observed: 2.62 ft at 6:00PM Dec 06, 2023Observed: 2.63 ft at 6:15PM Dec 06, 2023Observed: 2.63 ft at 6:30PM Dec 06, 2023Observed: 2.63 ft at 6:45PM Dec 06, 2023Observed: 2.63 ft at 7:00PM Dec 06, 2023Observed: 2.63 ft at 7:15PM Dec 06, 2023Observed: 2.63 ft at 7:30PM Dec 06, 2023Observed: 2.64 ft at 7:45PM Dec 06, 2023Observed: 2.63 ft at 8:00PM Dec 06, 2023Observed: 2.63 ft at 8:15PM Dec 06, 2023Observed: 2.64 ft at 8:30PM Dec 06, 2023Observed: 2.61 ft at 8:45PM Dec 06, 2023Observed: 2.59 ft at 9:00PM Dec 06, 2023Observed: 2.58 ft at 9:15PM Dec 06, 2023Observed: 2.59 ft at 9:30PM Dec 06, 2023Observed: 2.58 ft at 9:45PM Dec 06, 2023Observed: 2.62 ft at 10:00PM Dec 06, 2023Observed: 2.59 ft at 10:15PM Dec 06, 2023Observed: 2.57 ft at 10:30PM Dec 06, 2023Observed: 2.58 ft at 10:45PM Dec 06, 2023Observed: 2.6 ft at 11:00PM Dec 06, 2023Observed: 2.56 ft at 11:15PM Dec 06, 2023Observed: 2.59 ft at 11:30PM Dec 06, 2023Observed: 2.56 ft at 11:45PM Dec 06, 2023Observed: 2.58 ft at 12:00AM Dec 07, 2023Observed: 2.58 ft at 12:15AM Dec 07, 2023Observed: 2.58 ft at 12:30AM Dec 07, 2023Observed: 2.57 ft at 12:45AM Dec 07, 2023Observed: 2.56 ft at 1:00AM Dec 07, 2023Observed: 2.56 ft at 1:15AM Dec 07, 2023Observed: 2.55 ft at 1:30AM Dec 07, 2023Observed: 2.54 ft at 1:45AM Dec 07, 2023Observed: 2.55 ft at 2:00AM Dec 07, 2023Observed: 2.53 ft at 2:15AM Dec 07, 2023Observed: 2.53 ft at 2:30AM Dec 07, 2023Observed: 2.52 ft at 2:45AM Dec 07, 2023Observed: 2.52 ft at 3:00AM Dec 07, 2023Observed: 2.52 ft at 3:15AM Dec 07, 2023Observed: 2.51 ft at 3:30AM Dec 07, 2023Observed: 2.5 ft at 3:45AM Dec 07, 2023Observed: 2.5 ft at 4:00AM Dec 07, 2023Observed: 2.49 ft at 4:15AM Dec 07, 2023Observed: 2.49 ft at 4:30AM Dec 07, 2023Observed: 2.48 ft at 4:45AM Dec 07, 2023Observed: 2.48 ft at 5:00AM Dec 07, 2023Observed: 2.47 ft at 5:15AM Dec 07, 2023Observed: 2.47 ft at 5:30AM Dec 07, 2023Observed: 2.47 ft at 5:45AM Dec 07, 2023Observed: 2.46 ft at 6:00AM Dec 07, 2023Observed: 2.46 ft at 6:15AM Dec 07, 2023Observed: 2.46 ft at 6:30AM Dec 07, 2023Observed: 2.46 ft at 6:45AM Dec 07, 2023Observed: 2.45 ft at 7:00AM Dec 07, 2023Observed: 2.45 ft at 7:15AM Dec 07, 2023Observed: 2.45 ft at 7:30AM Dec 07, 2023Observed: 2.45 ft at 7:45AM Dec 07, 2023Observed: 2.45 ft at 8:00AM Dec 07, 2023Observed: 2.45 ft at 8:15AM Dec 07, 2023Observed: 2.45 ft at 8:30AM Dec 07, 2023Observed: 2.44 ft at 8:45AM Dec 07, 2023Observed: 2.44 ft at 9:00AM Dec 07, 2023Observed: 2.44 ft at 9:15AM Dec 07, 2023Observed: 2.44 ft at 9:30AM Dec 07, 2023Observed: 2.44 ft at 9:45AM Dec 07, 2023Observed: 2.44 ft at 10:00AM Dec 07, 2023Observed: 2.44 ft at 10:15AM Dec 07, 2023Observed: 2.44 ft at 10:30AM Dec 07, 2023Observed: 2.43 ft at 10:45AM Dec 07, 2023Observed: 2.41 ft at 11:00AM Dec 07, 2023Observed: 2.43 ft at 11:15AM Dec 07, 2023Observed: 2.43 ft at 11:30AM Dec 07, 2023Observed: 2.43 ft at 11:45AM Dec 07, 2023Observed: 2.43 ft at 12:00PM Dec 07, 2023Observed: 2.42 ft at 12:15PM Dec 07, 2023Observed: 2.43 ft at 12:30PM Dec 07, 2023Observed: 2.43 ft at 12:45PM Dec 07, 2023Observed: 2.42 ft at 1:00PM Dec 07, 2023Observed: 2.42 ft at 1:15PM Dec 07, 2023Observed: 2.42 ft at 1:30PM Dec 07, 2023Observed: 2.42 ft at 1:45PM Dec 07, 2023Observed: 2.42 ft at 2:00PM Dec 07, 2023Observed: 2.42 ft at 2:15PM Dec 07, 2023Observed: 2.42 ft at 2:30PM Dec 07, 2023Observed: 2.42 ft at 2:45PM Dec 07, 2023Observed: 2.42 ft at 3:00PM Dec 07, 2023Observed: 2.42 ft at 3:15PM Dec 07, 2023Observed: 2.42 ft at 3:30PM Dec 07, 2023Observed: 2.43 ft at 3:45PM Dec 07, 2023Observed: 2.43 ft at 4:00PM Dec 07, 2023Observed: 2.43 ft at 4:15PM Dec 07, 2023Observed: 2.44 ft at 4:30PM Dec 07, 2023Observed: 2.43 ft at 4:45PM Dec 07, 2023Observed: 2.44 ft at 5:00PM Dec 07, 2023Observed: 2.44 ft at 5:15PM Dec 07, 2023Observed: 2.44 ft at 5:30PM Dec 07, 2023Observed: 2.45 ft at 5:45PM Dec 07, 2023Highest Forecast: 2.4 ft 7:00PM Dec 07, 2023Highest Forecast: 2.4 ft 1:00AM Dec 08, 2023Highest Forecast: 2.4 ft 7:00AM Dec 08, 2023Forecast: 2.2 ft 1:00PM Dec 08, 2023Forecast: 2.1 ft 7:00PM Dec 08, 2023Forecast: 2 ft 1:00AM Dec 09, 2023Forecast: 1.9 ft 7:00AM Dec 09, 2023Forecast: 1.8 ft 1:00PM Dec 09, 2023Forecast: 1.8 ft 7:00PM Dec 09, 2023Forecast: 1.7 ft 1:00AM Dec 10, 2023Forecast: 1.7 ft 7:00AM Dec 10, 2023USGS--Water Resources of the United StatesNHPP1(plotting HGIRG) Graph Created (6:18PM Dec 7, 2023)ObservedForecast (issued 9:28AM Dec 7)Latest observed value: 2.45 ft at 5:45 PM EST 7-Dec-2023. Flood Stage is 13 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts for the Delaware River at New Hope-Lambertville Bridge are issued routinely year-round.
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Upstream Gauge - at Stockton Upstream Gauge Downstream Gauge Downstream Gauge - at Washington Crossing
Flood Categories (in feet)
Major Flood Stage: 16
Moderate Flood Stage: 15
Flood Stage: 13
Action Stage: 12
Low Stage (in feet): 0

Historic Crests
(1) 24.16 ft on 08/20/1955
(2) 21.80 ft on 10/11/1903
(3) 19.60 ft on 04/04/2005
(4) 19.08 ft on 06/29/2006
(5) 17.90 ft on 01/08/1841
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 13.39 ft on 09/02/2021
(2) 15.10 ft on 09/09/2011
(3) 12.74 ft on 08/29/2011
(4) 13.07 ft on 03/12/2011
(5) 19.08 ft on 06/29/2006
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
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
If you notice any errors in the below information, please contact our Webmaster
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 Coryell Street in Lambertville.
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 gagages 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.
About This Location Collapse

Latitude: 40.364722° N, Longitude: 74.948889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 13 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 49.00 ft 62.00 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 10 Day (NAEFS) 10 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

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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Page last modified: 2-Nov-2020 7:30 PM
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