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Hydrograph River at a Glance Download
Olentangy River near Worthington Stage (ft)Flow (kcfs)Observed: 2.04 ft at 5:00PM Nov 20, 2014Observed: 2.04 ft at 5:30PM Nov 20, 2014Observed: 2.04 ft at 6:00PM Nov 20, 2014Observed: 2.04 ft at 6:30PM Nov 20, 2014Observed: 2.04 ft at 7:00PM Nov 20, 2014Observed: 2.04 ft at 7:30PM Nov 20, 2014Observed: 2.04 ft at 8:00PM Nov 20, 2014Observed: 2.04 ft at 8:30PM Nov 20, 2014Observed: 2.04 ft at 9:00PM Nov 20, 2014Observed: 2.05 ft at 9:30PM Nov 20, 2014Observed: 2.05 ft at 10:00PM Nov 20, 2014Observed: 2.05 ft at 10:30PM Nov 20, 2014Observed: 2.05 ft at 11:00PM Nov 20, 2014Observed: 2.05 ft at 11:30PM Nov 20, 2014Observed: 2.05 ft at 12:00AM Nov 21, 2014Observed: 2.05 ft at 12:30AM Nov 21, 2014Observed: 2.05 ft at 1:00AM Nov 21, 2014Observed: 2.05 ft at 1:30AM Nov 21, 2014Observed: 2.05 ft at 2:00AM Nov 21, 2014Observed: 2.04 ft at 2:30AM Nov 21, 2014Observed: 2.04 ft at 3:00AM Nov 21, 2014Observed: 2.04 ft at 3:30AM Nov 21, 2014Observed: 2.04 ft at 4:00AM Nov 21, 2014Observed: 2.04 ft at 4:30AM Nov 21, 2014Observed: 2.04 ft at 5:00AM Nov 21, 2014Observed: 2.04 ft at 5:30AM Nov 21, 2014Observed: 2.04 ft at 6:00AM Nov 21, 2014Observed: 2.03 ft at 6:30AM Nov 21, 2014Observed: 2.04 ft at 7:00AM Nov 21, 2014Observed: 2.04 ft at 7:30AM Nov 21, 2014Observed: 2.04 ft at 8:00AM Nov 21, 2014Observed: 2.04 ft at 8:30AM Nov 21, 2014Observed: 2.04 ft at 9:00AM Nov 21, 2014Observed: 2.04 ft at 9:30AM Nov 21, 2014Observed: 2.04 ft at 10:00AM Nov 21, 2014Observed: 2.04 ft at 10:30AM Nov 21, 2014Observed: 2.05 ft at 11:00AM Nov 21, 2014Observed: 2.05 ft at 11:30AM Nov 21, 2014Observed: 2.04 ft at 12:00PM Nov 21, 2014Observed: 2.04 ft at 12:30PM Nov 21, 2014Observed: 2.04 ft at 1:00PM Nov 21, 2014Observed: 2.03 ft at 1:30PM Nov 21, 2014Observed: 2.03 ft at 2:00PM Nov 21, 2014Observed: 2.04 ft at 2:30PM Nov 21, 2014Observed: 2.04 ft at 3:00PM Nov 21, 2014Observed: 2.04 ft at 3:30PM Nov 21, 2014Observed: 2.04 ft at 4:00PM Nov 21, 2014Observed: 2.04 ft at 4:30PM Nov 21, 2014Observed: 2.04 ft at 5:00PM Nov 21, 2014Observed: 2.04 ft at 5:30PM Nov 21, 2014Observed: 2.04 ft at 6:00PM Nov 21, 2014Observed: 2.04 ft at 6:30PM Nov 21, 2014Observed: 2.04 ft at 7:00PM Nov 21, 2014Observed: 2.04 ft at 7:30PM Nov 21, 2014Observed: 2.04 ft at 8:00PM Nov 21, 2014Observed: 2.04 ft at 8:30PM Nov 21, 2014Observed: 2.04 ft at 9:00PM Nov 21, 2014Observed: 2.04 ft at 9:30PM Nov 21, 2014Observed: 2.04 ft at 10:00PM Nov 21, 2014Observed: 2.05 ft at 10:30PM Nov 21, 2014Observed: 2.05 ft at 11:00PM Nov 21, 2014Observed: 2.05 ft at 11:30PM Nov 21, 2014Observed: 2.05 ft at 12:00AM Nov 22, 2014Observed: 2.05 ft at 12:30AM Nov 22, 2014Observed: 2.04 ft at 1:00AM Nov 22, 2014Observed: 2.04 ft at 1:30AM Nov 22, 2014Observed: 2.04 ft at 2:00AM Nov 22, 2014Observed: 2.04 ft at 2:30AM Nov 22, 2014Observed: 2.04 ft at 3:00AM Nov 22, 2014Observed: 2.03 ft at 3:30AM Nov 22, 2014Observed: 2.03 ft at 4:00AM Nov 22, 2014Observed: 2.03 ft at 4:30AM Nov 22, 2014Observed: 2.03 ft at 5:00AM Nov 22, 2014Observed: 2.05 ft at 5:30AM Nov 22, 2014Observed: 2.04 ft at 6:00AM Nov 22, 2014Observed: 2.04 ft at 6:30AM Nov 22, 2014Observed: 2.04 ft at 7:00AM Nov 22, 2014Observed: 2.04 ft at 7:30AM Nov 22, 2014Observed: 2.04 ft at 8:00AM Nov 22, 2014Observed: 2.03 ft at 8:30AM Nov 22, 2014Observed: 2.03 ft at 9:00AM Nov 22, 2014Observed: 2.03 ft at 9:30AM Nov 22, 2014Observed: 2.03 ft at 10:00AM Nov 22, 2014Observed: 2.03 ft at 10:30AM Nov 22, 2014Observed: 2.03 ft at 11:00AM Nov 22, 2014Observed: 2.03 ft at 11:30AM Nov 22, 2014Observed: 2.04 ft at 12:00PM Nov 22, 2014Observed: 2.04 ft at 12:30PM Nov 22, 2014Observed: 2.05 ft at 1:00PM Nov 22, 2014Observed: 2.05 ft at 1:30PM Nov 22, 2014Observed: 2.06 ft at 2:00PM Nov 22, 2014Observed: 2.06 ft at 2:30PM Nov 22, 2014Observed: 2.06 ft at 3:00PM Nov 22, 2014Observed: 2.06 ft at 3:30PM Nov 22, 2014Observed: 2.06 ft at 4:00PM Nov 22, 2014Observed: 2.06 ft at 4:30PM Nov 22, 2014Observed: 2.06 ft at 5:00PM Nov 22, 2014Observed: 2.06 ft at 5:30PM Nov 22, 2014Observed: 2.06 ft at 6:00PM Nov 22, 2014Observed: 2.06 ft at 6:30PM Nov 22, 2014Observed: 2.06 ft at 7:00PM Nov 22, 2014Observed: 2.06 ft at 7:30PM Nov 22, 2014Observed: 2.06 ft at 8:00PM Nov 22, 2014Observed: 2.06 ft at 8:30PM Nov 22, 2014Observed: 2.06 ft at 9:00PM Nov 22, 2014Observed: 2.06 ft at 9:30PM Nov 22, 2014Observed: 2.07 ft at 10:00PM Nov 22, 2014Observed: 2.07 ft at 10:30PM Nov 22, 2014Observed: 2.08 ft at 11:00PM Nov 22, 2014Observed: 2.08 ft at 11:30PM Nov 22, 2014Observed: 2.08 ft at 12:00AM Nov 23, 2014Observed: 2.09 ft at 12:30AM Nov 23, 2014Observed: 2.09 ft at 1:00AM Nov 23, 2014Observed: 2.09 ft at 1:30AM Nov 23, 2014Observed: 2.09 ft at 2:00AM Nov 23, 2014Observed: 2.09 ft at 2:30AM Nov 23, 2014Observed: 2.1 ft at 3:00AM Nov 23, 2014Observed: 2.08 ft at 3:30AM Nov 23, 2014Observed: 2.08 ft at 4:00AM Nov 23, 2014Observed: 2.08 ft at 4:30AM Nov 23, 2014Observed: 2.08 ft at 5:00AM Nov 23, 2014Observed: 2.08 ft at 5:30AM Nov 23, 2014Observed: 2.08 ft at 6:00AM Nov 23, 2014Observed: 2.08 ft at 6:30AM Nov 23, 2014Observed: 2.08 ft at 7:00AM Nov 23, 2014Observed: 2.08 ft at 7:30AM Nov 23, 2014Observed: 2.07 ft at 8:00AM Nov 23, 2014Observed: 2.07 ft at 8:30AM Nov 23, 2014Observed: 2.07 ft at 9:00AM Nov 23, 2014Observed: 2.07 ft at 9:30AM Nov 23, 2014Observed: 2.07 ft at 10:00AM Nov 23, 2014Observed: 2.07 ft at 10:30AM Nov 23, 2014Observed: 2.08 ft at 11:00AM Nov 23, 2014Observed: 2.08 ft at 11:30AM Nov 23, 2014Observed: 2.08 ft at 12:00PM Nov 23, 2014Observed: 2.08 ft at 12:30PM Nov 23, 2014Observed: 2.08 ft at 1:00PM Nov 23, 2014Observed: 2.08 ft at 1:30PM Nov 23, 2014Observed: 2.08 ft at 2:00PM Nov 23, 2014Observed: 2.08 ft at 2:30PM Nov 23, 2014Observed: 2.08 ft at 3:00PM Nov 23, 2014Observed: 2.08 ft at 3:30PM Nov 23, 2014Observed: 2.08 ft at 4:00PM Nov 23, 2014Observed: 2.08 ft at 4:30PM Nov 23, 2014Observed: 2.08 ft at 5:00PM Nov 23, 2014Observed: 2.09 ft at 5:30PM Nov 23, 2014Observed: 2.09 ft at 6:00PM Nov 23, 2014Observed: 2.09 ft at 6:30PM Nov 23, 2014Observed: 2.09 ft at 7:00PM Nov 23, 2014Observed: 2.1 ft at 7:30PM Nov 23, 2014Observed: 2.09 ft at 8:00PM Nov 23, 2014Observed: 2.1 ft at 8:30PM Nov 23, 2014Observed: 2.12 ft at 9:00PM Nov 23, 2014Observed: 2.13 ft at 9:30PM Nov 23, 2014Observed: 2.16 ft at 10:00PM Nov 23, 2014Observed: 2.17 ft at 10:30PM Nov 23, 2014Observed: 2.18 ft at 11:00PM Nov 23, 2014Observed: 2.19 ft at 11:30PM Nov 23, 2014Observed: 2.22 ft at 12:00AM Nov 24, 2014Observed: 2.22 ft at 12:30AM Nov 24, 2014Observed: 2.22 ft at 1:00AM Nov 24, 2014Observed: 2.23 ft at 1:30AM Nov 24, 2014Observed: 2.24 ft at 2:00AM Nov 24, 2014Observed: 2.25 ft at 2:30AM Nov 24, 2014Observed: 2.26 ft at 3:00AM Nov 24, 2014Observed: 2.25 ft at 3:30AM Nov 24, 2014Observed: 2.25 ft at 4:00AM Nov 24, 2014Observed: 2.24 ft at 4:30AM Nov 24, 2014Observed: 2.24 ft at 5:00AM Nov 24, 2014Observed: 2.25 ft at 5:30AM Nov 24, 2014Observed: 2.27 ft at 6:00AM Nov 24, 2014Highest Observation: 2.3 ft at 6:30AM Nov 24, 2014Highest Observation: 2.3 ft at 7:00AM Nov 24, 2014Highest Observation: 2.3 ft at 7:30AM Nov 24, 2014Observed: 2.29 ft at 8:00AM Nov 24, 2014Observed: 2.28 ft at 8:30AM Nov 24, 2014Observed: 2.28 ft at 9:00AM Nov 24, 2014Observed: 2.27 ft at 9:30AM Nov 24, 2014Observed: 2.26 ft at 10:00AM Nov 24, 2014Observed: 2.25 ft at 10:30AM Nov 24, 2014Observed: 2.24 ft at 11:00AM Nov 24, 2014Observed: 2.24 ft at 11:30AM Nov 24, 2014Observed: 2.22 ft at 12:00PM Nov 24, 2014Observed: 2.21 ft at 12:30PM Nov 24, 2014Observed: 2.2 ft at 1:00PM Nov 24, 2014Observed: 2.19 ft at 1:30PM Nov 24, 2014Observed: 2.18 ft at 2:00PM Nov 24, 2014Observed: 2.18 ft at 2:30PM Nov 24, 2014Observed: 2.16 ft at 3:00PM Nov 24, 2014Observed: 2.15 ft at 3:30PM Nov 24, 2014Observed: 2.14 ft at 4:00PM Nov 24, 2014Observed: 2.14 ft at 4:30PM Nov 24, 2014Observed: 2.14 ft at 5:00PM Nov 24, 2014Observed: 2.13 ft at 5:30PM Nov 24, 2014Observed: 2.13 ft at 6:00PM Nov 24, 2014Observed: 2.13 ft at 6:30PM Nov 24, 2014Observed: 2.13 ft at 7:00PM Nov 24, 2014Observed: 2.12 ft at 7:30PM Nov 24, 2014Observed: 2.13 ft at 8:00PM Nov 24, 2014Observed: 2.12 ft at 8:30PM Nov 24, 2014Observed: 2.12 ft at 9:00PM Nov 24, 2014Observed: 2.13 ft at 9:30PM Nov 24, 2014Observed: 2.13 ft at 10:00PM Nov 24, 2014Observed: 2.13 ft at 10:30PM Nov 24, 2014Observed: 2.13 ft at 11:00PM Nov 24, 2014Observed: 2.13 ft at 11:30PM Nov 24, 2014Observed: 2.13 ft at 12:00AM Nov 25, 2014Observed: 2.12 ft at 12:30AM Nov 25, 2014Observed: 2.12 ft at 1:00AM Nov 25, 2014Observed: 2.12 ft at 1:30AM Nov 25, 2014Observed: 2.11 ft at 2:00AM Nov 25, 2014Observed: 2.11 ft at 2:30AM Nov 25, 2014Observed: 2.1 ft at 3:00AM Nov 25, 2014Observed: 2.1 ft at 3:30AM Nov 25, 2014Observed: 2.09 ft at 4:00AM Nov 25, 2014Observed: 2.09 ft at 4:30AM Nov 25, 2014Observed: 2.08 ft at 5:00AM Nov 25, 2014Observed: 2.08 ft at 5:30AM Nov 25, 2014Observed: 2.08 ft at 6:00AM Nov 25, 2014Observed: 2.07 ft at 6:30AM Nov 25, 2014Observed: 2.07 ft at 7:00AM Nov 25, 2014Observed: 2.07 ft at 7:30AM Nov 25, 2014Observed: 2.07 ft at 8:00AM Nov 25, 2014Observed: 2.06 ft at 8:30AM Nov 25, 2014Observed: 2.06 ft at 9:00AM Nov 25, 2014Observed: 2.06 ft at 9:30AM Nov 25, 2014Observed: 2.06 ft at 10:00AM Nov 25, 2014Observed: 2.06 ft at 10:30AM Nov 25, 2014Observed: 2.06 ft at 11:00AM Nov 25, 2014Observed: 2.06 ft at 11:30AM Nov 25, 2014Observed: 2.06 ft at 12:00PM Nov 25, 2014Observed: 2.06 ft at 12:30PM Nov 25, 2014Observed: 2.05 ft at 1:00PM Nov 25, 2014Observed: 2.05 ft at 1:30PM Nov 25, 2014Observed: 2.04 ft at 2:00PM Nov 25, 2014Observed: 2.04 ft at 2:30PM Nov 25, 2014Observed: 2.04 ft at 3:00PM Nov 25, 2014Observed: 2.03 ft at 3:30PM Nov 25, 2014Observed: 2.03 ft at 4:00PM Nov 25, 2014USGS--Water Resources of the United StatesWRTO1(plotting HGIRG) Graph Created (4:49PM Nov 25, 2014)ObservedLatest observed value: 2.03 ft at 4:00 PM EST 25-Nov-2014. Flood Stage is 13 ft
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Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Olentangy River near Worthington are issued as needed during times of high water, but are not routinely available.

Vertical datum height surveyed by the USGS

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Upstream Gauge - near Delaware Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 18
Moderate Flood Stage: 15
Flood Stage: 13
Action Stage: 8
Low Stage (in feet): 0

Historic Crests
(1) 15.68 ft on 01/21/1959
(2) 15.30 ft on 01/10/1952
(3) 12.66 ft on 03/10/1964
(4) 11.68 ft on 03/04/1963
(5) 11.58 ft on 05/20/1957
(6) 11.55 ft on 06/20/1973
(7) 11.53 ft on 06/14/2004
(8) 11.45 ft on 09/14/1979
(9) 11.32 ft on 05/27/1956
(10) 11.23 ft on 05/22/1969
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.47 ft on 01/14/2005
(2) 10.27 ft on 01/12/2005
(3) 9.67 ft on 01/06/2005
(4) 8.95 ft on 01/02/2005
(5) 11.53 ft on 06/14/2004
(6) 8.92 ft on 04/14/2002
(7) 8.66 ft on 04/08/2000
(8) 8.55 ft on 06/02/1997
(9) 10.00 ft on 08/08/1995
(10) 8.42 ft on 03/21/1984
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.00 ft on 06/14/1996

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

Zoom Level:14
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
18.5 This would roughly equal the FEMA 500 year or 0.2 percent flood event. Significant flooding of Plumtree and Edgecliff Drives in Mt. Air occurs east of Route 315, with the Powell Waste Water Treatment Plant in southern Delaware County also flooded. Substantial flooding occurs along Rivers Edge Drive and Mt. Air Place.
18 Widespread flooding occurs in sections of Worthington near the river, with homes flooded along Edgecliff and Plumtree Drives in Mt. Air. Some flooding begins at the Powell Waste Water Treatment Plant.
17 A stage of this level is just above the FEMA 1 percent flood level. Homes become flooded along western parts of Rosslyn and Kanawha Avenues and Tucker Drive in Worthington. Homes are flooded along Edgecliff and Plumtree Drives close to the river in Mt. Air. Much of Olentangy Park and the bike trail are flooded. Flooding extends onto the back of properties along Masefield Street. Water also approaches the Powell Waste Water Treatment Plant.
15 In addition to flooding near Mt. Air near Edgecliff and Plumtree Drives close to the river, flooding worsens near Worthington near Olentangy Park and along the bike trail.
13 Flooding worsens in low areas along the Olentangy River in Mount Air, and lowland areas near the river in Worthington experience flooding. Flooding in and near Worthington is confined to Olentangy Park and along the bike trail.
10 Flood waters approach residences along the river in Mount Air, between Olentangy River Road and the river itself. Flooding does not occur in Worthington until stages near 13 feet.
9 Flooding spreads further into yards of homes near the river in Mount Air, between Olentangy River Road and the river.
8 Flooding of yards begins along the Olentangy River near Mount Air in northern Franklin County, only in low-lying areas between Olentangy River Road and the river.
About This Location Collapse

Latitude: 40.110278° N, Longitude: 83.031944° W, Horizontal Datum: NAD27

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 742.4 ft 755.4 ft 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 Not Available Not Available  

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
Wilmington Weather Forecast Office
1901 South State Route 134
Wilmington, OH 45177
(937) 383-0031
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Page last modified: 20-Nov-2014 2:01 AM
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