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Hydrograph River at a Glance Download
James River (VA) at Holcomb Rock Stage (ft)Flow (kcfs)Observed: 4.27 ft at 9:00AM Aug 31, 2015Observed: 4.27 ft at 9:15AM Aug 31, 2015Observed: 4.27 ft at 9:30AM Aug 31, 2015Observed: 4.27 ft at 9:45AM Aug 31, 2015Observed: 4.28 ft at 10:00AM Aug 31, 2015Observed: 4.27 ft at 10:15AM Aug 31, 2015Observed: 4.27 ft at 10:30AM Aug 31, 2015Observed: 4.27 ft at 10:45AM Aug 31, 2015Observed: 4.27 ft at 11:00AM Aug 31, 2015Observed: 4.28 ft at 11:15AM Aug 31, 2015Observed: 4.27 ft at 11:30AM Aug 31, 2015Observed: 4.27 ft at 11:45AM Aug 31, 2015Observed: 4.27 ft at 12:00PM Aug 31, 2015Observed: 4.27 ft at 12:15PM Aug 31, 2015Observed: 4.27 ft at 12:30PM Aug 31, 2015Observed: 4.28 ft at 12:45PM Aug 31, 2015Observed: 4.28 ft at 1:00PM Aug 31, 2015Observed: 4.28 ft at 1:15PM Aug 31, 2015Observed: 4.28 ft at 1:30PM Aug 31, 2015Observed: 4.28 ft at 1:45PM Aug 31, 2015Observed: 4.29 ft at 2:00PM Aug 31, 2015Observed: 4.29 ft at 2:15PM Aug 31, 2015Observed: 4.29 ft at 2:30PM Aug 31, 2015Observed: 4.29 ft at 2:45PM Aug 31, 2015Observed: 4.29 ft at 3:00PM Aug 31, 2015Observed: 4.29 ft at 3:15PM Aug 31, 2015Observed: 4.28 ft at 3:30PM Aug 31, 2015Observed: 4.28 ft at 3:45PM Aug 31, 2015Observed: 4.28 ft at 4:00PM Aug 31, 2015Observed: 4.28 ft at 4:15PM Aug 31, 2015Observed: 4.28 ft at 4:30PM Aug 31, 2015Observed: 4.28 ft at 4:45PM Aug 31, 2015Observed: 4.27 ft at 5:00PM Aug 31, 2015Observed: 4.27 ft at 5:15PM Aug 31, 2015Observed: 4.28 ft at 5:30PM Aug 31, 2015Observed: 4.27 ft at 5:45PM Aug 31, 2015Observed: 4.27 ft at 6:00PM Aug 31, 2015Observed: 4.27 ft at 6:15PM Aug 31, 2015Observed: 4.28 ft at 6:30PM Aug 31, 2015Observed: 4.27 ft at 6:45PM Aug 31, 2015Observed: 4.27 ft at 7:00PM Aug 31, 2015Observed: 4.27 ft at 7:15PM Aug 31, 2015Observed: 4.27 ft at 7:30PM Aug 31, 2015Observed: 4.27 ft at 7:45PM Aug 31, 2015Observed: 4.27 ft at 8:00PM Aug 31, 2015Observed: 4.27 ft at 8:15PM Aug 31, 2015Observed: 4.27 ft at 8:30PM Aug 31, 2015Observed: 4.27 ft at 8:45PM Aug 31, 2015Observed: 4.27 ft at 9:00PM Aug 31, 2015Observed: 4.27 ft at 9:15PM Aug 31, 2015Observed: 4.27 ft at 9:30PM Aug 31, 2015Observed: 4.27 ft at 9:45PM Aug 31, 2015Observed: 4.27 ft at 10:00PM Aug 31, 2015Observed: 4.27 ft at 10:15PM Aug 31, 2015Observed: 4.27 ft at 10:30PM Aug 31, 2015Observed: 4.27 ft at 10:45PM Aug 31, 2015Observed: 4.27 ft at 11:00PM Aug 31, 2015Observed: 4.27 ft at 11:15PM Aug 31, 2015Observed: 4.27 ft at 11:30PM Aug 31, 2015Observed: 4.27 ft at 11:45PM Aug 31, 2015Observed: 4.27 ft at 12:00AM Sep 01, 2015Observed: 4.27 ft at 12:15AM Sep 01, 2015Observed: 4.27 ft at 12:30AM Sep 01, 2015Observed: 4.27 ft at 12:45AM Sep 01, 2015Observed: 4.27 ft at 1:00AM Sep 01, 2015Observed: 4.27 ft at 1:15AM Sep 01, 2015Observed: 4.27 ft at 1:30AM Sep 01, 2015Observed: 4.27 ft at 1:45AM Sep 01, 2015Observed: 4.27 ft at 2:00AM Sep 01, 2015Observed: 4.27 ft at 2:15AM Sep 01, 2015Observed: 4.27 ft at 2:30AM Sep 01, 2015Observed: 4.27 ft at 2:45AM Sep 01, 2015Observed: 4.27 ft at 3:00AM Sep 01, 2015Observed: 4.27 ft at 3:15AM Sep 01, 2015Observed: 4.27 ft at 3:30AM Sep 01, 2015Observed: 4.27 ft at 3:45AM Sep 01, 2015Observed: 4.28 ft at 4:00AM Sep 01, 2015Observed: 4.27 ft at 4:15AM Sep 01, 2015Observed: 4.27 ft at 4:30AM Sep 01, 2015Observed: 4.27 ft at 4:45AM Sep 01, 2015Observed: 4.27 ft at 5:00AM Sep 01, 2015Observed: 4.27 ft at 5:15AM Sep 01, 2015Observed: 4.27 ft at 5:30AM Sep 01, 2015Observed: 4.27 ft at 5:45AM Sep 01, 2015Observed: 4.27 ft at 6:00AM Sep 01, 2015Observed: 4.27 ft at 6:15AM Sep 01, 2015Observed: 4.27 ft at 6:30AM Sep 01, 2015Observed: 4.28 ft at 6:45AM Sep 01, 2015Observed: 4.27 ft at 7:00AM Sep 01, 2015Observed: 4.28 ft at 7:15AM Sep 01, 2015Observed: 4.28 ft at 7:30AM Sep 01, 2015Observed: 4.28 ft at 7:45AM Sep 01, 2015Observed: 4.27 ft at 8:00AM Sep 01, 2015Observed: 4.27 ft at 8:15AM Sep 01, 2015Observed: 4.27 ft at 8:30AM Sep 01, 2015Observed: 4.27 ft at 8:45AM Sep 01, 2015Observed: 4.27 ft at 9:00AM Sep 01, 2015Observed: 4.28 ft at 9:15AM Sep 01, 2015Observed: 4.28 ft at 9:30AM Sep 01, 2015Observed: 4.28 ft at 9:45AM Sep 01, 2015Observed: 4.28 ft at 10:00AM Sep 01, 2015Observed: 4.28 ft at 10:15AM Sep 01, 2015Observed: 4.28 ft at 10:30AM Sep 01, 2015Observed: 4.28 ft at 10:45AM Sep 01, 2015Observed: 4.28 ft at 11:00AM Sep 01, 2015Observed: 4.28 ft at 11:15AM Sep 01, 2015Observed: 4.28 ft at 11:30AM Sep 01, 2015Observed: 4.27 ft at 11:45AM Sep 01, 2015Observed: 4.28 ft at 12:00PM Sep 01, 2015Observed: 4.28 ft at 12:15PM Sep 01, 2015Observed: 4.28 ft at 12:30PM Sep 01, 2015Observed: 4.28 ft at 12:45PM Sep 01, 2015Observed: 4.28 ft at 1:00PM Sep 01, 2015Observed: 4.24 ft at 1:15PM Sep 01, 2015Observed: 4.2 ft at 1:30PM Sep 01, 2015Observed: 4.27 ft at 1:45PM Sep 01, 2015Observed: 4.19 ft at 2:00PM Sep 01, 2015Observed: 4.15 ft at 2:15PM Sep 01, 2015Observed: 4.14 ft at 2:30PM Sep 01, 2015Observed: 4.14 ft at 2:45PM Sep 01, 2015Observed: 4.15 ft at 3:00PM Sep 01, 2015Observed: 4.16 ft at 3:15PM Sep 01, 2015Observed: 4.17 ft at 3:30PM Sep 01, 2015Observed: 4.18 ft at 3:45PM Sep 01, 2015Observed: 4.2 ft at 4:00PM Sep 01, 2015Observed: 4.21 ft at 4:15PM Sep 01, 2015Observed: 4.22 ft at 4:30PM Sep 01, 2015Observed: 4.24 ft at 4:45PM Sep 01, 2015Observed: 4.25 ft at 5:00PM Sep 01, 2015Observed: 4.26 ft at 5:15PM Sep 01, 2015Observed: 4.27 ft at 5:30PM Sep 01, 2015Observed: 4.28 ft at 5:45PM Sep 01, 2015Observed: 4.29 ft at 6:00PM Sep 01, 2015Observed: 4.3 ft at 6:15PM Sep 01, 2015Observed: 4.3 ft at 6:30PM Sep 01, 2015Observed: 4.31 ft at 6:45PM Sep 01, 2015Observed: 4.31 ft at 7:00PM Sep 01, 2015Highest Observation: 4.32 ft at 7:15PM Sep 01, 2015Highest Observation: 4.32 ft at 7:30PM Sep 01, 2015Highest Observation: 4.32 ft at 7:45PM Sep 01, 2015Highest Observation: 4.32 ft at 8:00PM Sep 01, 2015Observed: 4.31 ft at 8:15PM Sep 01, 2015Observed: 4.31 ft at 8:30PM Sep 01, 2015Observed: 4.3 ft at 8:45PM Sep 01, 2015Observed: 4.3 ft at 9:00PM Sep 01, 2015Observed: 4.29 ft at 9:15PM Sep 01, 2015Observed: 4.28 ft at 9:30PM Sep 01, 2015Observed: 4.28 ft at 9:45PM Sep 01, 2015Observed: 4.27 ft at 10:00PM Sep 01, 2015Observed: 4.27 ft at 10:15PM Sep 01, 2015Observed: 4.26 ft at 10:30PM Sep 01, 2015Observed: 4.26 ft at 10:45PM Sep 01, 2015Observed: 4.25 ft at 11:00PM Sep 01, 2015Observed: 4.25 ft at 11:15PM Sep 01, 2015Observed: 4.25 ft at 11:30PM Sep 01, 2015Observed: 4.25 ft at 11:45PM Sep 01, 2015Observed: 4.24 ft at 12:00AM Sep 02, 2015Observed: 4.25 ft at 12:15AM Sep 02, 2015Observed: 4.24 ft at 12:30AM Sep 02, 2015Observed: 4.24 ft at 12:45AM Sep 02, 2015Observed: 4.24 ft at 1:00AM Sep 02, 2015Observed: 4.24 ft at 1:15AM Sep 02, 2015Observed: 4.24 ft at 1:30AM Sep 02, 2015Observed: 4.24 ft at 1:45AM Sep 02, 2015Observed: 4.24 ft at 2:00AM Sep 02, 2015Observed: 4.24 ft at 2:15AM Sep 02, 2015Observed: 4.24 ft at 2:30AM Sep 02, 2015Observed: 4.24 ft at 2:45AM Sep 02, 2015Observed: 4.24 ft at 3:00AM Sep 02, 2015Observed: 4.24 ft at 3:15AM Sep 02, 2015Observed: 4.24 ft at 3:30AM Sep 02, 2015Observed: 4.24 ft at 3:45AM Sep 02, 2015Observed: 4.24 ft at 4:00AM Sep 02, 2015Observed: 4.24 ft at 4:15AM Sep 02, 2015Observed: 4.24 ft at 4:30AM Sep 02, 2015Observed: 4.24 ft at 4:45AM Sep 02, 2015Observed: 4.24 ft at 5:00AM Sep 02, 2015Observed: 4.24 ft at 5:15AM Sep 02, 2015Observed: 4.24 ft at 5:30AM Sep 02, 2015Observed: 4.24 ft at 5:45AM Sep 02, 2015Observed: 4.24 ft at 6:00AM Sep 02, 2015Observed: 4.24 ft at 6:15AM Sep 02, 2015Observed: 4.24 ft at 6:30AM Sep 02, 2015Observed: 4.24 ft at 6:45AM Sep 02, 2015Observed: 4.25 ft at 7:00AM Sep 02, 2015Observed: 4.25 ft at 7:15AM Sep 02, 2015Observed: 4.25 ft at 7:30AM Sep 02, 2015Observed: 4.25 ft at 7:45AM Sep 02, 2015Observed: 4.25 ft at 8:00AM Sep 02, 2015Observed: 4.24 ft at 8:15AM Sep 02, 2015Observed: 4.25 ft at 8:30AM Sep 02, 2015Observed: 4.24 ft at 8:45AM Sep 02, 2015Observed: 4.25 ft at 9:00AM Sep 02, 2015Observed: 4.25 ft at 9:15AM Sep 02, 2015Observed: 4.25 ft at 9:30AM Sep 02, 2015Observed: 4.25 ft at 9:45AM Sep 02, 2015Observed: 4.25 ft at 10:00AM Sep 02, 2015Observed: 4.25 ft at 10:15AM Sep 02, 2015Observed: 4.25 ft at 10:30AM Sep 02, 2015Observed: 4.25 ft at 10:45AM Sep 02, 2015Observed: 4.26 ft at 11:00AM Sep 02, 2015Observed: 4.26 ft at 11:15AM Sep 02, 2015Observed: 4.25 ft at 11:30AM Sep 02, 2015Observed: 4.26 ft at 11:45AM Sep 02, 2015Observed: 4.25 ft at 12:00PM Sep 02, 2015Observed: 4.25 ft at 12:15PM Sep 02, 2015Observed: 4.25 ft at 12:30PM Sep 02, 2015Observed: 4.25 ft at 12:45PM Sep 02, 2015Observed: 4.25 ft at 1:00PM Sep 02, 2015Observed: 4.25 ft at 1:15PM Sep 02, 2015Observed: 4.25 ft at 1:30PM Sep 02, 2015Observed: 4.25 ft at 1:45PM Sep 02, 2015Observed: 4.25 ft at 2:00PM Sep 02, 2015Observed: 4.25 ft at 2:15PM Sep 02, 2015Observed: 4.25 ft at 2:30PM Sep 02, 2015Observed: 4.25 ft at 2:45PM Sep 02, 2015Observed: 4.25 ft at 3:00PM Sep 02, 2015Observed: 4.25 ft at 3:15PM Sep 02, 2015Observed: 4.25 ft at 3:30PM Sep 02, 2015Observed: 4.25 ft at 3:45PM Sep 02, 2015Observed: 4.25 ft at 4:00PM Sep 02, 2015Observed: 4.25 ft at 4:15PM Sep 02, 2015Observed: 4.26 ft at 4:30PM Sep 02, 2015Observed: 4.26 ft at 4:45PM Sep 02, 2015Observed: 4.27 ft at 5:00PM Sep 02, 2015Observed: 4.27 ft at 5:15PM Sep 02, 2015Observed: 4.27 ft at 5:30PM Sep 02, 2015Observed: 4.28 ft at 5:45PM Sep 02, 2015Observed: 4.29 ft at 6:00PM Sep 02, 2015Observed: 4.29 ft at 6:15PM Sep 02, 2015Observed: 4.31 ft at 6:30PM Sep 02, 2015Observed: 4.31 ft at 6:45PM Sep 02, 2015Highest Observation: 4.32 ft at 7:00PM Sep 02, 2015Highest Observation: 4.32 ft at 7:15PM Sep 02, 2015Highest Observation: 4.32 ft at 7:30PM Sep 02, 2015Highest Observation: 4.32 ft at 7:45PM Sep 02, 2015Highest Observation: 4.32 ft at 8:00PM Sep 02, 2015Observed: 4.31 ft at 8:15PM Sep 02, 2015Observed: 4.31 ft at 8:30PM Sep 02, 2015Observed: 4.3 ft at 8:45PM Sep 02, 2015Observed: 4.3 ft at 9:00PM Sep 02, 2015Observed: 4.29 ft at 9:15PM Sep 02, 2015Observed: 4.28 ft at 9:30PM Sep 02, 2015Observed: 4.28 ft at 9:45PM Sep 02, 2015Observed: 4.27 ft at 10:00PM Sep 02, 2015Observed: 4.27 ft at 10:15PM Sep 02, 2015Observed: 4.26 ft at 10:30PM Sep 02, 2015Observed: 4.26 ft at 10:45PM Sep 02, 2015Observed: 4.25 ft at 11:00PM Sep 02, 2015Observed: 4.25 ft at 11:15PM Sep 02, 2015Observed: 4.25 ft at 11:30PM Sep 02, 2015Observed: 4.25 ft at 11:45PM Sep 02, 2015Observed: 4.24 ft at 12:00AM Sep 03, 2015Observed: 4.25 ft at 12:15AM Sep 03, 2015Observed: 4.25 ft at 12:30AM Sep 03, 2015Observed: 4.24 ft at 12:45AM Sep 03, 2015Observed: 4.24 ft at 1:00AM Sep 03, 2015Observed: 4.25 ft at 1:15AM Sep 03, 2015Observed: 4.24 ft at 1:30AM Sep 03, 2015Observed: 4.25 ft at 1:45AM Sep 03, 2015Observed: 4.24 ft at 2:00AM Sep 03, 2015Observed: 4.24 ft at 2:15AM Sep 03, 2015Observed: 4.25 ft at 2:30AM Sep 03, 2015Observed: 4.25 ft at 2:45AM Sep 03, 2015Observed: 4.25 ft at 3:00AM Sep 03, 2015Observed: 4.25 ft at 3:15AM Sep 03, 2015Observed: 4.25 ft at 3:30AM Sep 03, 2015Observed: 4.25 ft at 3:45AM Sep 03, 2015Observed: 4.25 ft at 4:00AM Sep 03, 2015Observed: 4.25 ft at 4:15AM Sep 03, 2015Observed: 4.25 ft at 4:30AM Sep 03, 2015Observed: 4.25 ft at 4:45AM Sep 03, 2015Observed: 4.25 ft at 5:00AM Sep 03, 2015Observed: 4.25 ft at 5:15AM Sep 03, 2015Observed: 4.25 ft at 5:30AM Sep 03, 2015Observed: 4.25 ft at 5:45AM Sep 03, 2015Observed: 4.25 ft at 6:00AM Sep 03, 2015Observed: 4.26 ft at 6:15AM Sep 03, 2015Observed: 4.26 ft at 6:30AM Sep 03, 2015Observed: 4.26 ft at 6:45AM Sep 03, 2015Observed: 4.26 ft at 7:00AM Sep 03, 2015Observed: 4.26 ft at 7:15AM Sep 03, 2015Observed: 4.26 ft at 7:30AM Sep 03, 2015Observed: 4.28 ft at 7:45AM Sep 03, 2015Forecast: 4.3 ft 2:00PM Sep 03, 2015Forecast: 4.3 ft 8:00PM Sep 03, 2015Highest Forecast: 5.5 ft 2:00AM Sep 04, 2015Forecast: 5.1 ft 8:00AM Sep 04, 2015Forecast: 4.8 ft 2:00PM Sep 04, 2015Forecast: 4.6 ft 8:00PM Sep 04, 2015Forecast: 4.4 ft 2:00AM Sep 05, 2015Forecast: 4.3 ft 8:00AM Sep 05, 2015USGS--Water Resources of the United StatesHRKV2(plotting HGIRG) Graph Created (8:48AM Sep 3, 2015)ObservedForecast (issued 8:53AM Sep 2)Latest observed value: 4.28 ft at 7:45 AM EDT 3-Sep-2015. Flood Stage is 22 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the James River (VA) at Holcomb Rock are issued routinely year-round.
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Upstream Gauge - at Buchanan Upstream Gauge Downstream Gauge Downstream Gauge - at Bent Creek
Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 24
Flood Stage: 22
Action Stage: 18
Low Stage (in feet): 0

Historic Crests
(1) 42.15 ft on 11/05/1985
(2) 35.50 ft on 08/20/1969
(3) 32.38 ft on 06/22/1972
(4) 31.30 ft on 03/28/1913
(5) 30.99 ft on 01/20/1996
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 20.68 ft on 04/17/2011
(2) 23.78 ft on 01/26/2010
(3) 13.01 ft on 05/17/2009
(4) 14.85 ft on 04/29/2008
(5) 19.69 ft on 11/17/2006
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.91 ft on 10/05/1970
(2) 3.02 ft on 09/21/1941
(3) 3.06 ft on 10/13/1941
(4) 3.11 ft on 09/26/1963
(5) 3.12 ft on 09/02/1968
Show More Low Water Records

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
32 Water floods railroad tracks along right bank.
28 Water reaches mail floor of powerhouse.
23 Power equipment yard and access flooded at holcomb rock dam.
22 Two feet of water in powerhouse lower floor.
About This Location Collapse

Latitude: 37.501111° N, Longitude: 79.262778° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 22 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 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 548.53 ft 570.53 ft  

Current/Historical Observations:

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Hydrologic Resources Additional Resources
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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
Blacksburg Weather Forecast Office
1750 Forecast Drive
Blacksburg, VA 24060
(540) 552-0084
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Page last modified: 13-Aug-2015 1:57 AM
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