Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

  
 
Hydrograph River at a Glance Download
Manalapan Brook at Spotswood Stage (ft)Flow (kcfs)Highest Observation: 18.16 ft at 12:15AM Jul 14, 2019Highest Observation: 18.16 ft at 12:30AM Jul 14, 2019Highest Observation: 18.16 ft at 12:45AM Jul 14, 2019Highest Observation: 18.16 ft at 1:00AM Jul 14, 2019Highest Observation: 18.16 ft at 1:15AM Jul 14, 2019Highest Observation: 18.16 ft at 1:30AM Jul 14, 2019Highest Observation: 18.16 ft at 1:45AM Jul 14, 2019Highest Observation: 18.16 ft at 2:00AM Jul 14, 2019Highest Observation: 18.16 ft at 2:15AM Jul 14, 2019Highest Observation: 18.16 ft at 2:30AM Jul 14, 2019Highest Observation: 18.16 ft at 2:45AM Jul 14, 2019Observed: 18.15 ft at 3:00AM Jul 14, 2019Observed: 18.15 ft at 3:15AM Jul 14, 2019Observed: 18.15 ft at 3:30AM Jul 14, 2019Observed: 18.15 ft at 3:45AM Jul 14, 2019Observed: 18.15 ft at 4:00AM Jul 14, 2019Observed: 18.15 ft at 4:15AM Jul 14, 2019Observed: 18.15 ft at 4:30AM Jul 14, 2019Observed: 18.15 ft at 4:45AM Jul 14, 2019Observed: 18.15 ft at 5:00AM Jul 14, 2019Observed: 18.15 ft at 5:15AM Jul 14, 2019Observed: 18.15 ft at 5:30AM Jul 14, 2019Observed: 18.15 ft at 5:45AM Jul 14, 2019Observed: 18.15 ft at 6:00AM Jul 14, 2019Observed: 18.15 ft at 6:15AM Jul 14, 2019Observed: 18.15 ft at 6:30AM Jul 14, 2019Observed: 18.15 ft at 6:45AM Jul 14, 2019Observed: 18.15 ft at 7:00AM Jul 14, 2019Observed: 18.15 ft at 7:15AM Jul 14, 2019Observed: 18.14 ft at 7:30AM Jul 14, 2019Observed: 18.14 ft at 7:45AM Jul 14, 2019Observed: 18.14 ft at 8:00AM Jul 14, 2019Observed: 18.14 ft at 8:15AM Jul 14, 2019Observed: 18.13 ft at 8:30AM Jul 14, 2019Observed: 18.13 ft at 8:45AM Jul 14, 2019Observed: 18.13 ft at 9:00AM Jul 14, 2019Observed: 18.13 ft at 9:15AM Jul 14, 2019Observed: 18.13 ft at 9:30AM Jul 14, 2019Observed: 18.13 ft at 9:45AM Jul 14, 2019Observed: 18.13 ft at 10:00AM Jul 14, 2019Observed: 18.13 ft at 10:15AM Jul 14, 2019Observed: 18.13 ft at 10:30AM Jul 14, 2019Observed: 18.13 ft at 10:45AM Jul 14, 2019Observed: 18.13 ft at 11:00AM Jul 14, 2019Observed: 18.13 ft at 11:15AM Jul 14, 2019Observed: 18.13 ft at 11:30AM Jul 14, 2019Observed: 18.12 ft at 11:45AM Jul 14, 2019Observed: 18.12 ft at 12:00PM Jul 14, 2019Observed: 18.12 ft at 12:15PM Jul 14, 2019Observed: 18.12 ft at 12:30PM Jul 14, 2019Observed: 18.12 ft at 12:45PM Jul 14, 2019Observed: 18.12 ft at 1:00PM Jul 14, 2019Observed: 18.11 ft at 1:15PM Jul 14, 2019Observed: 18.11 ft at 1:30PM Jul 14, 2019Observed: 18.11 ft at 1:45PM Jul 14, 2019Observed: 18.11 ft at 2:00PM Jul 14, 2019Observed: 18.11 ft at 2:15PM Jul 14, 2019Observed: 18.11 ft at 2:30PM Jul 14, 2019Observed: 18.11 ft at 2:45PM Jul 14, 2019Observed: 18.11 ft at 3:00PM Jul 14, 2019Observed: 18.11 ft at 3:15PM Jul 14, 2019Observed: 18.11 ft at 3:30PM Jul 14, 2019Observed: 18.11 ft at 3:45PM Jul 14, 2019Observed: 18.11 ft at 4:00PM Jul 14, 2019Observed: 18.11 ft at 4:15PM Jul 14, 2019Observed: 18.11 ft at 4:30PM Jul 14, 2019Observed: 18.11 ft at 4:45PM Jul 14, 2019Observed: 18.1 ft at 5:00PM Jul 14, 2019Observed: 18.1 ft at 5:15PM Jul 14, 2019Observed: 18.1 ft at 5:30PM Jul 14, 2019Observed: 18.1 ft at 5:45PM Jul 14, 2019Observed: 18.1 ft at 6:00PM Jul 14, 2019Observed: 18.09 ft at 6:15PM Jul 14, 2019Observed: 18.09 ft at 6:30PM Jul 14, 2019Observed: 18.09 ft at 6:45PM Jul 14, 2019Observed: 18.09 ft at 7:00PM Jul 14, 2019Observed: 18.09 ft at 7:15PM Jul 14, 2019Observed: 18.09 ft at 7:30PM Jul 14, 2019Observed: 18.09 ft at 7:45PM Jul 14, 2019Observed: 18.09 ft at 8:00PM Jul 14, 2019Observed: 18.09 ft at 8:15PM Jul 14, 2019Observed: 18.09 ft at 8:30PM Jul 14, 2019Observed: 18.09 ft at 8:45PM Jul 14, 2019Observed: 18.09 ft at 9:00PM Jul 14, 2019Observed: 18.09 ft at 9:15PM Jul 14, 2019Observed: 18.09 ft at 9:30PM Jul 14, 2019Observed: 18.09 ft at 9:45PM Jul 14, 2019Observed: 18.09 ft at 10:00PM Jul 14, 2019Observed: 18.09 ft at 10:15PM Jul 14, 2019Observed: 18.09 ft at 10:30PM Jul 14, 2019Observed: 18.09 ft at 10:45PM Jul 14, 2019Observed: 18.08 ft at 11:00PM Jul 14, 2019Observed: 18.08 ft at 11:15PM Jul 14, 2019Observed: 18.08 ft at 11:30PM Jul 14, 2019Observed: 18.08 ft at 11:45PM Jul 14, 2019Observed: 18.08 ft at 12:00AM Jul 15, 2019Observed: 18.08 ft at 12:15AM Jul 15, 2019Observed: 18.08 ft at 12:30AM Jul 15, 2019Observed: 18.08 ft at 12:45AM Jul 15, 2019Observed: 18.07 ft at 1:00AM Jul 15, 2019Observed: 18.07 ft at 1:15AM Jul 15, 2019Observed: 18.07 ft at 1:30AM Jul 15, 2019Observed: 18.07 ft at 1:45AM Jul 15, 2019Observed: 18.07 ft at 2:00AM Jul 15, 2019Observed: 18.07 ft at 2:15AM Jul 15, 2019Observed: 18.07 ft at 2:30AM Jul 15, 2019Observed: 18.07 ft at 2:45AM Jul 15, 2019Observed: 18.07 ft at 3:00AM Jul 15, 2019Observed: 18.07 ft at 3:15AM Jul 15, 2019Observed: 18.07 ft at 3:30AM Jul 15, 2019Observed: 18.07 ft at 3:45AM Jul 15, 2019Observed: 18.07 ft at 4:00AM Jul 15, 2019Observed: 18.07 ft at 4:15AM Jul 15, 2019Observed: 18.07 ft at 4:30AM Jul 15, 2019Observed: 18.07 ft at 4:45AM Jul 15, 2019Observed: 18.07 ft at 5:00AM Jul 15, 2019Observed: 18.07 ft at 5:15AM Jul 15, 2019Observed: 18.07 ft at 5:30AM Jul 15, 2019Observed: 18.07 ft at 5:45AM Jul 15, 2019Observed: 18.07 ft at 6:00AM Jul 15, 2019Observed: 18.07 ft at 6:15AM Jul 15, 2019Observed: 18.07 ft at 6:30AM Jul 15, 2019Observed: 18.07 ft at 6:45AM Jul 15, 2019Observed: 18.07 ft at 7:00AM Jul 15, 2019Observed: 18.07 ft at 7:15AM Jul 15, 2019Observed: 18.06 ft at 7:30AM Jul 15, 2019Observed: 18.06 ft at 7:45AM Jul 15, 2019Observed: 18.06 ft at 8:00AM Jul 15, 2019Observed: 18.06 ft at 8:15AM Jul 15, 2019Observed: 18.06 ft at 8:30AM Jul 15, 2019Observed: 18.06 ft at 8:45AM Jul 15, 2019Observed: 18.06 ft at 9:00AM Jul 15, 2019Observed: 18.06 ft at 9:15AM Jul 15, 2019Observed: 18.05 ft at 9:30AM Jul 15, 2019Observed: 18.05 ft at 9:45AM Jul 15, 2019Observed: 18.05 ft at 10:00AM Jul 15, 2019Observed: 18.05 ft at 10:15AM Jul 15, 2019Observed: 18.05 ft at 10:30AM Jul 15, 2019Observed: 18.05 ft at 10:45AM Jul 15, 2019Observed: 18.05 ft at 11:00AM Jul 15, 2019Observed: 18.05 ft at 11:15AM Jul 15, 2019Observed: 18.05 ft at 11:30AM Jul 15, 2019Observed: 18.05 ft at 11:45AM Jul 15, 2019Observed: 18.05 ft at 12:00PM Jul 15, 2019Observed: 18.05 ft at 12:15PM Jul 15, 2019Observed: 18.05 ft at 12:30PM Jul 15, 2019Observed: 18.05 ft at 12:45PM Jul 15, 2019Observed: 18.05 ft at 1:00PM Jul 15, 2019Observed: 18.05 ft at 1:15PM Jul 15, 2019Observed: 18.05 ft at 1:30PM Jul 15, 2019Observed: 18.05 ft at 1:45PM Jul 15, 2019Observed: 18.05 ft at 2:00PM Jul 15, 2019Observed: 18.05 ft at 2:15PM Jul 15, 2019Observed: 18.05 ft at 2:30PM Jul 15, 2019Observed: 18.05 ft at 2:45PM Jul 15, 2019Observed: 18.05 ft at 3:00PM Jul 15, 2019Observed: 18.05 ft at 3:15PM Jul 15, 2019Observed: 18.05 ft at 3:30PM Jul 15, 2019Observed: 18.05 ft at 3:45PM Jul 15, 2019Observed: 18.05 ft at 4:00PM Jul 15, 2019Observed: 18.05 ft at 4:15PM Jul 15, 2019Observed: 18.05 ft at 4:30PM Jul 15, 2019Observed: 18.05 ft at 4:45PM Jul 15, 2019Observed: 18.05 ft at 5:00PM Jul 15, 2019Observed: 18.05 ft at 5:15PM Jul 15, 2019Observed: 18.05 ft at 5:30PM Jul 15, 2019Observed: 18.05 ft at 5:45PM Jul 15, 2019Observed: 18.05 ft at 6:00PM Jul 15, 2019Observed: 18.04 ft at 6:15PM Jul 15, 2019Observed: 18.04 ft at 6:30PM Jul 15, 2019Observed: 18.04 ft at 6:45PM Jul 15, 2019Observed: 18.04 ft at 7:00PM Jul 15, 2019Observed: 18.04 ft at 7:15PM Jul 15, 2019Observed: 18.04 ft at 7:30PM Jul 15, 2019Observed: 18.04 ft at 7:45PM Jul 15, 2019Observed: 18.04 ft at 8:00PM Jul 15, 2019Observed: 18.04 ft at 8:15PM Jul 15, 2019Observed: 18.04 ft at 8:30PM Jul 15, 2019Observed: 18.04 ft at 8:45PM Jul 15, 2019Observed: 18.04 ft at 9:00PM Jul 15, 2019Observed: 18.04 ft at 9:15PM Jul 15, 2019Observed: 18.04 ft at 9:30PM Jul 15, 2019Observed: 18.04 ft at 9:45PM Jul 15, 2019Observed: 18.04 ft at 10:00PM Jul 15, 2019Observed: 18.03 ft at 10:15PM Jul 15, 2019Observed: 18.03 ft at 10:30PM Jul 15, 2019Observed: 18.03 ft at 10:45PM Jul 15, 2019Observed: 18.03 ft at 11:00PM Jul 15, 2019Observed: 18.03 ft at 11:15PM Jul 15, 2019Observed: 18.03 ft at 11:30PM Jul 15, 2019Observed: 18.03 ft at 11:45PM Jul 15, 2019Observed: 18.03 ft at 12:00AM Jul 16, 2019Observed: 18.03 ft at 12:15AM Jul 16, 2019Observed: 18.03 ft at 12:30AM Jul 16, 2019Observed: 18.03 ft at 12:45AM Jul 16, 2019Observed: 18.03 ft at 1:00AM Jul 16, 2019Observed: 18.03 ft at 1:15AM Jul 16, 2019Observed: 18.03 ft at 1:30AM Jul 16, 2019Observed: 18.03 ft at 1:45AM Jul 16, 2019Observed: 18.03 ft at 2:00AM Jul 16, 2019Observed: 18.03 ft at 2:15AM Jul 16, 2019Observed: 18.03 ft at 2:30AM Jul 16, 2019Observed: 18.03 ft at 2:45AM Jul 16, 2019Observed: 18.03 ft at 3:00AM Jul 16, 2019Observed: 18.03 ft at 3:15AM Jul 16, 2019Observed: 18.03 ft at 3:30AM Jul 16, 2019Observed: 18.03 ft at 3:45AM Jul 16, 2019Observed: 18.03 ft at 4:00AM Jul 16, 2019Observed: 18.03 ft at 4:15AM Jul 16, 2019Observed: 18.03 ft at 4:30AM Jul 16, 2019Observed: 18.03 ft at 4:45AM Jul 16, 2019Observed: 18.03 ft at 5:00AM Jul 16, 2019Observed: 18.03 ft at 5:15AM Jul 16, 2019Observed: 18.03 ft at 5:30AM Jul 16, 2019Observed: 18.03 ft at 5:45AM Jul 16, 2019Observed: 18.03 ft at 6:00AM Jul 16, 2019Observed: 18.03 ft at 6:15AM Jul 16, 2019Observed: 18.03 ft at 6:30AM Jul 16, 2019Observed: 18.03 ft at 6:45AM Jul 16, 2019Observed: 18.03 ft at 7:00AM Jul 16, 2019Observed: 18.03 ft at 7:15AM Jul 16, 2019Observed: 18.03 ft at 7:30AM Jul 16, 2019Observed: 18.03 ft at 7:45AM Jul 16, 2019Observed: 18.03 ft at 8:00AM Jul 16, 2019Observed: 18.03 ft at 8:15AM Jul 16, 2019Observed: 18.03 ft at 8:30AM Jul 16, 2019Observed: 18.03 ft at 8:45AM Jul 16, 2019Observed: 18.03 ft at 9:00AM Jul 16, 2019Observed: 18.03 ft at 9:15AM Jul 16, 2019Observed: 18.03 ft at 9:30AM Jul 16, 2019Observed: 18.03 ft at 9:45AM Jul 16, 2019Observed: 18.03 ft at 10:00AM Jul 16, 2019Observed: 18.03 ft at 10:15AM Jul 16, 2019Observed: 18.03 ft at 10:30AM Jul 16, 2019Observed: 18.03 ft at 10:45AM Jul 16, 2019Observed: 18.03 ft at 11:00AM Jul 16, 2019Observed: 18.03 ft at 11:15AM Jul 16, 2019Observed: 18.02 ft at 11:30AM Jul 16, 2019Observed: 18.02 ft at 11:45AM Jul 16, 2019Observed: 18.02 ft at 12:00PM Jul 16, 2019Observed: 18.02 ft at 12:15PM Jul 16, 2019Observed: 18.02 ft at 12:30PM Jul 16, 2019Observed: 18.02 ft at 12:45PM Jul 16, 2019Observed: 18.02 ft at 1:00PM Jul 16, 2019Observed: 18.02 ft at 1:15PM Jul 16, 2019Observed: 18.02 ft at 1:30PM Jul 16, 2019Observed: 18.02 ft at 1:45PM Jul 16, 2019Observed: 18.02 ft at 2:00PM Jul 16, 2019Observed: 18.02 ft at 2:15PM Jul 16, 2019Observed: 18.02 ft at 2:30PM Jul 16, 2019Observed: 18.02 ft at 2:45PM Jul 16, 2019Observed: 18.01 ft at 3:00PM Jul 16, 2019Observed: 18.01 ft at 3:15PM Jul 16, 2019Observed: 18.01 ft at 3:30PM Jul 16, 2019Observed: 18.01 ft at 3:45PM Jul 16, 2019Observed: 18.01 ft at 4:00PM Jul 16, 2019Observed: 18.01 ft at 4:15PM Jul 16, 2019Observed: 18.01 ft at 4:30PM Jul 16, 2019Observed: 18.01 ft at 4:45PM Jul 16, 2019Observed: 18.01 ft at 5:00PM Jul 16, 2019Observed: 18.01 ft at 5:15PM Jul 16, 2019Observed: 18.01 ft at 5:30PM Jul 16, 2019Observed: 18.01 ft at 5:45PM Jul 16, 2019Observed: 18.01 ft at 6:00PM Jul 16, 2019Observed: 18.01 ft at 6:15PM Jul 16, 2019Observed: 18.01 ft at 6:30PM Jul 16, 2019Observed: 18.01 ft at 6:45PM Jul 16, 2019Observed: 18.01 ft at 7:00PM Jul 16, 2019Observed: 18.01 ft at 7:15PM Jul 16, 2019Observed: 18.01 ft at 7:30PM Jul 16, 2019Observed: 18.01 ft at 7:45PM Jul 16, 2019Observed: 18.01 ft at 8:00PM Jul 16, 2019Observed: 18.01 ft at 8:15PM Jul 16, 2019Observed: 18.01 ft at 8:30PM Jul 16, 2019Observed: 18.01 ft at 8:45PM Jul 16, 2019Observed: 18.01 ft at 9:00PM Jul 16, 2019Observed: 18.01 ft at 9:15PM Jul 16, 2019Observed: 18.01 ft at 9:30PM Jul 16, 2019Observed: 18.01 ft at 9:45PM Jul 16, 2019Observed: 18.01 ft at 10:00PM Jul 16, 2019Observed: 18.01 ft at 10:15PM Jul 16, 2019Observed: 18.01 ft at 10:30PM Jul 16, 2019Observed: 18.01 ft at 10:45PM Jul 16, 2019Observed: 18.01 ft at 11:00PM Jul 16, 2019Observed: 18.01 ft at 11:15PM Jul 16, 2019USGS--Water Resources of the United StatesSPTN4(plotting HGIRG) Graph Created (12:04AM Jul 17, 2019)ObservedLatest observed value: 18.01 ft at 11:15 PM EDT 16-Jul-2019. Flood Stage is 19 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts are not available for the Manalapan Brook at Spotswood. Only observed stages are available for this point.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 22
Moderate Flood Stage: 21
Flood Stage: 19
Action Stage: 18.5
Low Stage (in feet): -9999

Historic Crests
(1) 22.22 ft on 08/28/2011
(2) 20.42 ft on 07/18/2005
(3) 20.31 ft on 05/01/2014
(4) 20.08 ft on 04/16/2007
(5) 19.97 ft on 09/20/1989
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 19.35 ft on 11/26/2018
(2) 19.46 ft on 05/28/2018
(3) 20.31 ft on 05/01/2014
(4) 19.07 ft on 03/31/2014
(5) 22.22 ft on 08/28/2011
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
22 The Immaculate Conception parking lot takes on water. Flooding increases on both Devoe and Mundy Avenues. Residential and township properties take on water. Downstream tides can affect Lake Devoe levels and subsequent flooding.
21 Mundy Avenue flooding increases. Devoe Avenue floods. Both roads become impassable. Flood waters approach residential and township properties. Downstream tides can affect Lake Devoe levels and subsequent flooding.
19 Mundy Avenue, connecting Spotswood and Old Bridge, is subject to flooding and closure. Downstream tides can affect Lake Devoe levels and subsequent flooding.
About This Location Collapse

Latitude: 40.389444° N, Longitude: 74.390833° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 19 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 Not Available 19 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
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
Ask Questions/Webmaster
Page last modified: 4-Mar-2019 11:30 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities