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August 18-19, 2007 River Flooding

Canadian River Flooding

The Canadian River had three different gauges exceed flood stage as a result of the heavy rainfall August 18-19. Some of the gauges went into major flood stage. All three of the gauges experienced crests that were in the top five highest of all time at their respective stations. Several of the stations (Bridgeport and Union City) have not experienced crests that high in the past half-century. Bridgeport had a record crest, which broke a record that had been held since 1914, or for 93 years! The "impact descriptions" provided were taken from the AHPS website and describe theoretical conditions at a certain river stage at a given location.

Bridgeport

EXCEEDED BANKFULL:  N/A            EXCEEDED FLOOD STAGE:  N/A
CRESTED: 21.03 FT 08/19 330PM
RECORD FLOODING OCCURRED
IMPACT DESCRIPTION: AT 21 FEET...FLOODING AFFECTS CROPLANDS...PASTURES...AND
OIL WELLS NEAR THE RIVER. FLOOD PLAIN FIELDS AT HIGHER
ELEVATIONS AWAY FROM THE RIVER MAY BE CUT OFF FROM EASY
ACCESS BY HIGH WATER IN SIDE CHANNELS. SAND DREDGING
OPERATIONS ARE AFFECTED. UPSTREAM POINTS IN SOUTHERN
BLAINE COUNTY MAY SEE FLOODING BEFORE THE AREAS NEAR
BRIDGEPORT IN NORTHERN CADDO COUNTY. DOWNSTREAM POINTS
IN SOUTHWESTERN CANADIAN COUNTY ARE AFFECTED HOURS LATER.

NOTES: THE CREST OF 21.03 FEET BREAKS THE PREVIOUS RECORD OF 19.40
FEET WHICH WAS SET ON MAY 3 1914. THEREFORE...FLOODING THIS
SEVERE HAS NOT BEEN EXPERIENCED AT BRIDGEPORT IN THE LAST
93 YEARS.

Union City

View of the bridge where the staff gauge is sited during the flooding.
View of the bridge where the staff gauge is sited during low flow.

EXCEEDED BANKFULL: N/A EXCEEDED FLOOD STAGE: N/A
CRESTED: 13.50 FT 08/20 230PM
MAJOR FLOODING OCCURRED
IMPACT DESCRIPTION: AT 13 FEET...VALLEY-WIDE FLOODING WITH DEPTHS UP TO 6 FEET
OCCURS ALONG THE RIVER ON THE CANADIAN-GRADY COUNTY BORDER
FROM NEAR U.S. HIGHWAY 81 BETWEEN UNION CITY AND MINCO TO
NEAR TUTTLE. AGRICULTURAL LANDS AND LOCAL ROADS ARE THE
AREAS MOST AFFECTED ALONG THE CANADIAN RIVER.

NOTES: THE CREST OF 13.50 FEET IS THE THIRD HIGHEST ALL TIME
AT UNION CITY. THERE HAS NOT BEEN A CREST THIS HIGH SINCE
MAY 31 1937...OR IN THE LAST 70 YEARS.

Purcell

Not all of these pictures weren't taken from the Purcell river gauge, but rather from Interstate-35 near the Norman river gauge, unless otherwise indicated.

Looking downstream from Interstate 35.
Also looking downstream from the highway.
Looking upstream from Interstate 35.
Also looking upstream from the highway.
Picture of the staff gauge at Purcell.

EXCEEDED BANKFULL: N/A EXCEEDED FLOOD STAGE: N/A
CRESTED: 15.40 FT 08/21 1100PM
MAJOR FLOODING OCCURRED
IMPACT DESCRIPTION: NOT AVAILABLE

NOTES: THE CREST OF 15.40 FEET IS THE SECOND HIGHEST ALL TIME
AT PURCELL. THERE HAS NOT BEEN A CREST THIS HIGH SINCE
MAY 3 1990.

North Canadian River Flooding

The North Canadian River had five different gauges exceed flood stage as a result of the heavy rainfall August 18-19. Some of the gauges went into major flood stage, and Watonga even set a record crest in the early morning hours of Sunday, August 19th. El Reno also set a record crest early in the afternoon of Monday August 20th, a record that had been held since 1965. The North Canadian River at Watonga rose from 8.10 feet to 19.70 feet in only 4 hours. All five of the gauges experienced crests that were in the top five highest of all time at their respective stations.

Watonga


EXCEEDED BANKFULL: 08/19 330AM EXCEEDED FLOOD STAGE: 08/19 345AM
CRESTED: 19.70 FT 08/19 530AM
RECORD FLOODING OCCURRED
IMPACT DESCRIPTION: AT 20 FEET...FLOODING OF MOSTLY CROPLANDS...
PASTURES...AND RURAL ROADS OCCURS. RURAL FLOODING
EXTENDS FROM NEAR WATONGA IN BLAINE COUNTY...DOWNSTREAM
TO NEAR CALUMET IN WESTERN CANADIAN COUNTY. THE
NORTHWEST EDGE OF THE TOWN OF GREENFIELD MAY SEE
SHALLOW DEPTHS. NO OTHER TOWNS WILL BE AFFECTED.

NOTES: THE CREST OF 19.70 FEET BREAKS THE PREVIOUS RECORD OF
19.24 FEET WHICH WAS SET ON OCTOBER 3 1986. THE RIVER
AT WATONGA ROSE 11.6 FEET IN THE FOUR HOURS PRIOR TO
CRESTING...A RATE OF NEARLY 3 FEET PER HOUR.

El Reno


EXCEEDED BANKFULL: 08/19 530AM EXCEEDED FLOOD STAGE: 08/19 800AM
CRESTED: 23.33 FT 08/20 100PM
RECORD FLOODING OCCURRED
IMPACT DESCRIPTION: AT 23 FEET...FLOOD DEPTHS SEEN IN EL RENO AND NEARBY
RAILYARDS ARE THE MOST SEVERE SINCE SEPTEMBER 1965. IN
CANADIAN COUNTY...OVERFLOWS COVER APPROXIMATELY 30
SQUARE MILES. FLOOD DEPTHS VARYING UP TO 6 FEET ARE
DESTRUCTIVE TO SUBURBAN AND RURAL RESIDENCES AND
PROPERTIES BETWEEN EL RENO AND YUKON. OTHER AREAS ARE
ISOLATED BY LIFE-THREATENING FLOWS ON LOCAL ROADS.

NOTES: THE CREST OF 23.33 FEET BREAKS THE PREVIOUS RECORD OF
22.22 FEET WHICH WAS SET ON SEPTEMBER 21 1965.

Yukon

Pictures were taken near the Overholster Dam, just downstream of the Yukon river gauge, unless otherwise indicated

The Overholster Dam while the North Canadian River was flooding.
The Overholster Dam Spillway full of water.
Flooding at a trailer park near the dam.

EXCEEDED BANKFULL: 08/19 630AM EXCEEDED FLOOD STAGE: 08/19 230PM
CRESTED: 16.51 FT 08/21 430AM
MODERATE FLOODING OCCURRED
IMPACT DESCRIPTION: AT 16 FEET...FLOODING OR ISOLATION OF SUBURBAN HOME
SITES AND RURAL AREAS ALONG THE NORTH CANADIAN RIVER
VALLEY OCCURS...FROM NEAR BANNER ROAD TO THE HEADWATERS
OF LAKE OVERHOLSER. THE GARTH BROOKS AVENUE CROSSING
NORTHWEST OF TOWN IS CLOSED BY FLOODWATERS. LOW-LYING
RURAL ROADS ARE CLOSED BY FLOOD DEPTHS NEAR 4 FEET WITH
DANGEROUSLY SWIFT CURRENTS.

NOTES: THE CREST OF 16.51 FEET IS THE THIRD HIGHEST ALL TIME
AT YUKON. THE RECORD...19.20 FEET...WAS SET ON
JUNE 10 1995. AN INITIAL CREST OF 16.21 FEET OCCURRED
ON AUGUST 19TH. THE RIVER THEN FELL AND CRESTED AGAIN
AT 16.51 FEET ON AUGUST 21ST. THE INITIAL CREST OF 16.21
FEET WAS THE FOURTH HIGHEST ALL TIME.

Oklahoma City


EXCEEDED BANKFULL: 08/19 645AM EXCEEDED FLOOD STAGE: 08/19 700AM
CRESTED: 22.38 FT 08/22 630AM
MODERATE FLOODING OCCURRED
IMPACT DESCRIPTION: AT 22 FEET...CROPLANDS... PASTURES... AND RURAL ROADS
EAST OF OKLAHOMA CITY NEAR THE TOWNS OF SPENCER AND
JONES ARE INUNDATED BY SIGNIFICANT OVERFLOW DEPTHS.
SPENCER IS NOT AFFECTED BY FLOODWATERS...WHILE SHALLOW
FLOODING MAY REACH THE OUTSKIRTS OF JONES.

NOTES: THE CREST OF 22.38 FEET IS THE FOURTH HIGHEST ALL TIME
AT OKLAHOMA CITY. THE RECORD...24.80 FEET...WAS SET ON
MAY 9 1993. AN INITIAL CREST OF 22.09 FEET OCCURRED ON
AUGUST 19TH. THE RIVER THEN FELL AND CRESTED AGAIN AT
22.38 FEET ON AUGUST 22ND. THE INITIAL CREST OF 22.09
FEET WAS THE FIFTH HIGHEST ALL TIME.

Harrah


EXCEEDED BANKFULL: 08/19 1130AM EXCEEDED FLOOD STAGE: 08/19 200PM
CRESTED: 19.20 FT 08/23 300AM
MAJOR FLOODING OCCURRED
IMPACT DESCRIPTION: AT 19 FEET...SIGNIFICANT FLOODING AFFECTS AGRICULTURAL
AREAS AND RURAL ROADS IN EASTERN OKLAHOMA COUNTY...THE
SOUTHWEST CORNER OF LINCOLN COUNTY...AND NORTHWESTERN
POTTAWATOMIE COUNTY.

NOTES: THE CREST OF 19.20 FEET IS THE FOURTH HIGHEST ALL TIME
AT HARRAH. THE RECORD...21.90 FEET...WAS SET ON
MAY 9 1993.

Washita River Flooding

The Washita River had four different gauges exceed flood stage as a result of the heavy rainfall August 18-19. Some of the gauges went into major flood stage. The Washita River at Anadarko has not had a crest as high as the one on August 20th in the past half-century. 

Clinton


EXCEEDED BANKFULL: 08/19 100AM EXCEEDED FLOOD STAGE: 08/19 130AM
CRESTED: 21.66 FT 08/19 700AM
MODERATE FLOODING OCCURRED
IMPACT DESCRIPTION: AT 21 FEET...APPROXIMATELY 5 THOUSAND ACRES OF RURAL
LANDS ARE COVERED BY DEPTHS UP TO 3 FEET... FROM AREAS
NEAR THE MOUTH OF BARNITZ CREEK...TO NEAR CLINTON IN
CUSTER COUNTY...AND DOWNSTREAM INTO WASHITA COUNTY. SOME
FARMSTEADS ARE FLOODED AND OTHERS ISOLATED BY WATER OVER
LOCAL ROADS. LOW FARM LEVEES MAY BE OVERTOPPED.

Carnegie


EXCEEDED BANKFULL: 08/19 200AM EXCEEDED FLOOD STAGE: 08/19 230AM
CRESTED: 30.81 FT 08/19 1200PM
MAJOR FLOODING OCCURRED
IMPACT DESCRIPTION: AT 30 FEET...LOOK FOR WIDE FLOOD PLAIN COVERAGE ALONG THE
WASHITA RIVER VALLEY IN EASTERN WASHITA AND WESTERN CADDO
COUNTIES. MORE THAN FIVE THOUSAND ACRES OF FARM LANDS ARE
COVERED BY FLOOD DEPTHS TO ABOUT 5 FEET. LOCAL HIGHWAYS MAY
BE BLOCKED...ISOLATING SOME RURAL COMMUNITIES AND MANY
FARMSTEADS.

Anadarko


View from South Bridge looking Downstream
View from South Bridge looking Upstream

EXCEEDED BANKFULL: 08/19 430AM EXCEEDED FLOOD STAGE: 08/19 600AM
CRESTED: 26.02 FT 08/20 830PM
MAJOR FLOODING OCCURRED
IMPACT DESCRIPTION: AT 26 FEET...AREAS IN AND NEAR THE ANADARKO CITY PARK ARE
FLOODED. FARM LEVEES ARE OVERTOPPED...AND PROPERTY SEVERELY
DAMAGED. RURAL ROADS IN CADDO AND WESTERN GRADY COUNTIES
ARE CLOSED.

NOTES: THE CREST OF 26.02 FEET IS THE THIRD HIGHEST ALL TIME
AT ANADARKO. THERE HAS NOT BEEN A CREST THIS HIGH SINCE
MAY 27 1949...OR IN THE LAST 58 YEARS.

Chickasha


View from Highway 81 Bridge looking Downstream
View from Old Highway 81 Bridge, with accumulated debris
View looking at the Old Highway 81 Bridge, Upstream
Flooding at the Chickasha Salvage Yard

EXCEEDED BANKFULL: 08/19 1015AM EXCEEDED FLOOD STAGE: 08/20 115AM
CRESTED: 26.27 FT 08/21 800AM
MAJOR FLOODING OCCURRED
IMPACT DESCRIPTION: AT 26 FEET...FLOOD LEVELS UP TO A DEPTH OF 2 FEET AFFECT
RESIDENTIAL AREAS IN NORTH CHICKASHA. SUBURBAN HOMES AND
BUSINESSES EAST OF TOWN ARE INUNDATED BY GREATER DEPTHS.
OVERFLOW DEPTHS ON AGRICULTURAL FIELDS VARY...RANGING UP
TO 9 FEET.

NOTES: THE CREST OF 26.27 FEET IS THE FOURTH HIGHEST ALL TIME
AT CHICKASHA.

Other River Flooding

Besides the three main rivers that flooded due to the heavy rainfall on August 18-19 (North Canadian, Canadian and Washita), other rivers and creeks also flooded across portions of Western and Central Oklahoma. These rivers only had one or two river gauge stations report flooding conditions and therefore they are detailed here, in the "Other Rivers and Creeks" section. 

Cimarron River at Guthrie


EXCEEDED BANKFULL: 08/19 715PM EXCEEDED FLOOD STAGE: 08/20 430AM
CRESTED: 13.33 FT 08/20 915AM
MINOR FLOODING OCCURRED
IMPACT DESCRIPTION: AT 13 FEET...RIVER LEVELS APPROACH BANKFULL LEVELS IN
LOGAN AND PAYNE COUNTIES. U.S. HIGHWAY 77 NORTH OF
GUTHRIE MAY BE FLOODED. SOME LOW-LYING FIELDS AND OIL
WELLS MAY BE ISOLATED...AND CATTLE STRANDED...BY WATER
IN CUTOFF CHANNELS.

NOTES: THE CIMARRON RIVER ALSO FLOODED AT PERKINS. THE CREST WAS
17.93 FEET AT 624 PM ON AUGUST 20TH. THIS IS CONSIDERED
MINOR FLOODING.

Cottonwood Creek at Seward


EXCEEDED BANKFULL: 08/19 530PM EXCEEDED FLOOD STAGE: 08/19 615PM
CRESTED: 30.12 FT 08/19 1030PM
MODERATE FLOODING OCCURRED
IMPACT DESCRIPTION: NONE AVAILABLE

NOTES: COTTONWOOD CREEK ALSO FLOODED AT GUTHRIE. THE CREST WAS
26.4 FEET AT 920 AM ON AUGUST 20TH. THIS IS CONSIDERED
MODERATE FLOODING.

Little River at Tecumsah


EXCEEDED BANKFULL: 08/19 1000AM EXCEEDED FLOOD STAGE: 08/19 1045AM
CRESTED: 16.54 FT 08/20 330AM
MODERATE FLOODING OCCURRED
IMPACT DESCRIPTION: AT 16 FEET...SIGNIFICANT FLOODING TO DEPTHS OF 5 FEET
DAMAGES CROPLANDS...PASTURES...AND RURAL ROADS ALONG
THE RIVER DOWNSTREAM OF THE U.S. HIGHWAY 177 BRIDGE
CROSSING...WITH LESSER DAMAGE OCCURRING UPSTREAM OF U.S.
HIGHWAY 177. THE AREA AFFECTED IS ENTIRELY RURAL.

Little Washita River at Ninnekah


EXCEEDED BANKFULL: 08/19 530AM EXCEEDED FLOOD STAGE: 08/19 745AM
CRESTED: 21.80 FT 08/19 1245PM
MINOR FLOODING OCCURRED
IMPACT DESCRIPTION: NONE AVAILABLE

NOTES: THIS IS THE HIGHEST CREST RECORDED AT NINNEKAH SINCE
RIVER GAUGE READINGS BEGAN.

East Cache Creek at Walters


EXCEEDED BANKFULL: 08/19 445AM EXCEEDED FLOOD STAGE: 08/19 615AM
CRESTED: 27.86 FT 08/20 630AM
MAJOR FLOODING OCCURRED
IMPACT DESCRIPTION: AT 27 FEET...VALLEY-WIDE FLOODING OF CROPLANDS...
PASTURES...AND LOCAL ROADS OCCURS IN SOUTHERN COMANCHE
COUNTY AND COTTON COUNTY AND IS ACCOMPANIED BY FLOOD DEPTHS
UP TO 6 FEET WITH VERY DANGEROUS CURRENTS.

NOTES: THE EAST CACHE CREEK AT WALTERS WAS IN MAJOR FLOOD STAGE
FOR OVER THREE CONSECUTIVE DAYS.

Deep Red Creek at Randlett


EXCEEDED BANKFULL: 08/20 115AM EXCEEDED FLOOD STAGE: 08/20 1045AM
CRESTED: 20.76 FT 08/20 730PM
MINOR FLOODING OCCURRED
IMPACT DESCRIPTION: AT 20 FEET...SHALLOW FLOODING OCCURS OVER CROPLANDS...
PASTURES...AND LOW-LYING LOCAL ROADS ALONG AND NEAR
THE CREEK.

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