Photograph of the seeding of lovegrass (20 acres) with one of the special drills constructed under the specifications of Soil Conservation District supervisors of the Central Washita River Valley of Oklahoma to plant small seeds of native and adapted grasses. A local iron works made the drills from second-hand grain drill frames, automobile transmissions, cotton planter boxes, discs and press wheels obtained by supervisors of the Grady Co., Stephens Co., South Caddo Co., and the Canadian-Walnut Soil and Conservation Districts [the last in McClain Co.]. drills were patterned after one constructed by the Woodward, Oklahoma Nursery. In 1945, 6 SCDs in the Central Washita River Valley seeded 5,161 acres with the aid of 2 small drills, lent by the Soil Conservation Service, compared with 11,000 acres seeded in all previous years. With the 7 special drills, the districts are tackling the job of seeding 500,000 acres of grasses. OK-9139.

Photograph of twenty-two combination clean and trashy grass seeding drills for delivery to the Soil Conservation Service for use in Washita Flood Control Program. From left ot right: E. Conrad, Earl K. Lowe, C.E. Bunch, & W.T. Wheeler. Frames were constructed and machines assembled by the Chickasha Iron Works. OK-9291.

Photograph of an UNIDENTIFED man pointing to a two-mile drainage channel being made ineffective by sand and silt from recent spring rains closing mouth of ditch on Lee Cook’s farm. The back of the photograph proclaims, “2 mile drainage channel being made ineffective by sand and silt from recent spring rains closing mouth of ditch. Note water standing in ditch. Creek channel that receives drainage ditch was lowered 2 feet past winter now sanded up again. Note sand bars in foreground. (Washita tributary.)”

Photograph of a water impound lot, looking north, constructed by ARS-SCS to study inundation tolerance of selected species of plants associated with watershed treatment (floodwater retarding structures). Water will be 5 feet deep at lower end of plot. Six plots are planned for the study. Reddish Prairie, virgin rangeland, Noble loam, slope 7%, erison 1, Class IV. Work is under the supervision of Edd. D. Rhoades, Agricultural Engineer, ARS. Project is in response to SCS research needs.

Photograph of water impounding plot (one of six) constructed by ARS-SWC to study inundation tolerance fo 24 selected species of plants associated with water shed treatment (floodwater retarding structures). Water will be 5 feet deep at lower end of plot with controlled periods of inundation. Common Switchgrass, lowland switchgrass and Midland Bermudagrass. Work is under supervision of E.D. Rhoades, Agricutural Engineer, ARS-SWC. Project in response to SCS research needs.

Photograph of water impounding plot (one of six) constructed by ARS-SWC to study inundation tolerance fo 24 selected species of plants associated with water shed treatment (floodwater retarding structures). Water will be 5 feet deep at lower end of plot with controlled periods of inundation. KR bluestem, common Bermudagrass and NK-37 Bermudagrass. Project is under supervision of E.D. Rhoades, Agricutural Engineer, ARS-SWC. Project in response to SCS research needs.

Photograph of water impounding plot (one of six) constructed by ARS-SWC to study inundation tolerance fo 24 selected species of plants associated with water shed treatment (floodwater retarding structures). Water will be 5 feet deep at lower end of plot with controlled periods of inundation. Eastern gramagrass, Caddo switchgrass, sand bluestem, river switchgrass, and big bluestem. Project is under supervision of E.D. Rhoades, Agricutural Engineer, ARS-SWC. Project in response to SCS research needs.

Photograph of west side of water impoundment Plot No. 2 previously flooded three times for 10 days each as follows: (1) 3/21/61 to 3/31/61; (2) 5/3/61 to 5/13/61; (3) 6/13/61 to 6/23/61. Considerable damage to grasses resulted from these inundation periods. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of water impounding Plot No. 6, one of six, used to study inundation tolerance of selected species of grasses associated with flooded areas above floodwater retarding structures. Viewed from top of embankment at lower end of plot. Edd D. Rhoades is shown standing at the five foot depth location. This plot has been flooded two times, 4/30/61 to 6/12/61 and 6/12/61 to 6/17/61. No damage was observed after the first flooding and only slight damages were noted after the second flooding. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of water impounding plot constructed by ARS-SWC to study inundation tolerance of selected species of plants associated with watershed treatment (floodwater retarding structures). Water will be 5 feet deep at lower end of plot. Six plots are planned for the study. Reddish Prairie, virgin rangel and Noble Loam, slope 7%, erosion 1, Class LV. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of west side of water impounding Plot 5, previously flooded ftwo times for 10 days each, as follows: (1) 4/30/61 to 5/10/61 and (2) 6/12/61 to 6/22/61. Considerable damage to grasses resulted from these inundation periods. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of a panoramic view of six water impounding plots used to study inundation tolerance of selected species of grasses associated with flooded areas above floodwater retarding structures. Plot 6, to the right, has just been drained. This view is from hillside above southeast corner of plots. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of a panoramic view of six water impounding llots being used to study inundation tolerance for selected species of grasses associated with flooded areas above floodwater retarding structures, as seen from southwest fence corner. Plot 1 is shown in the foreground. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of a close-up view of the right side of water impounding Plot 2 as seen from the lower end. This plot has been flooded two times previously for 10 days, from 3/21 to 3/31/61 and again from 5/3-13/61. No damages were noted from the first flooding; however, considerable damages were observed as a result of the second flooding. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of a close-up view of the right side of water impounding Plot 1 as seen from the lower end. This plot has been flooded tow times previously for 5 days frrom 3/21-26/61 and 5/4-9/61. Only slight damages were noted as a result of these floodings. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of a close-up view of the right side of water impounding Plot 3 as seen from the lower end. This plot has been flooded two times for 20 days from 3/22/61 to 4/11/61 and again from 5/2/61 to 5/22/61. None to slight damages were noted from the first flooding; however, severe damages and loss of grass resulted from the second flooding. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of the east view of site where water impoundment plots will be constucted to study inundation tolerance of selected vegetation as related to watershed treatment. Location-southesat of Lake Chickasha; Sec. 22, R9W, T8N, Soil-Reddish Prairie, virgin rangeland, Noble loam, slope 7%, erosion 1, Class IV. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of a panoramic view looking north of water impounding plots constructed by ARS-SWC to study inundation tolerance of selected species of plants related to watershed treatment. Reddish Prairie, virgin rangeland, Noble loam, slope 7%, erosion 1, Class IV. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of a close-up view of the cente of water impounding Plot 2 as seen from the lower end. This plot has been flooded two times previously for 10 days from 3/21-31/61 and again from 5/3-13/61. No damages were noted from the first flooding; however, considerable damages were observed as a result of the second flooding. Numerous grasses did not survive and growth was suppressed on others. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of a view across upper end of Plot 3 while flooded. This shows plants protruding from water simulating actual condition in detention reservoirs. This plot was previously flooded from 3/22/61 to 4/11/61 and current flooding commenced 5/2/16 and is scheduled to continue until 5/22/61. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of a close-up view of the left side of water impounding Plot 1 as seen from the lower end. This plot has been flooded two times previously for 5 days from 3/21-26 and again from 5/4-9/61. Only slight damages wee noted as a result of these floodings. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of Edd "D. Rhoades, Agricultural Engineer, ARS-SWD, checking water temperature in one of six water impounding plots being used to study the inumdtion tholerance of selected species of grasses associated with flooded aeas above floodwater retarding structures. High and low water temperaturews are checked daily. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of water impounding Plot 2, one of six being used to study water inumdation tolerance of selected species of grasses associated with flooded areas above floodwater retarding structures. Viewed from top of embankment at lower end of plot. Edd D. Rhoades shown standing at the 5 foot depth location. This plot has been flooded three times: (1) 3/20/61 to 3/31/61 (10 days); (2) 5/3/61 to 5/13/61 (10 days); and (3) 6/13/61 to 6/23/61 (10 days). No damage was observed after the first flooding; slight damage was noted after the second flooding and considerable damage was noted after the third flooding. This study is in response to SCS research needs. Work is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SCS.

Photograph of water impounding plots constructed by ARS-SWC to study inundation tolerance fo 24 selected species of plants associated with water shed treatment (floodwater retarding structures). Water will be 5 feet deep at lower end of plot with controlled periods of inundation. Project is under supervision of E.D. Rhoades, Agricutural Engineer, ARS-SWC. and concurred in by M.D. Gamble, Agronomist, SCS. Project in response to SCS research needs.