Photograph of an aerial shot of a diversion terrace for Site 6 Mill Creek and the surrounding area. A farmstead with several buildings is located in the bottom part of the photograph. The back of the photograph proclaims, “Watershed: Ok-SCD-20 Wa. #5. Site #6. Type of structure: Diversion terrace for Site #6. Drainage area: 155 acres (90 acres in pasture, 65 acres in cropland). General condition of drainage area: Severely eroded, gully & sheet. Acres of bottomland protected: 90 acres (Protects bottomland & Detention Reservoir #1 from silt).”

Photograph of aerial view of watershed: OK-SCD-20 Wa #5, Site #3. Type of structure: Drop inlet. Drainage area: 160 acres. Soil units: Deep medium textured slowly permeable and permeable. Area in cultivation: 32 acres. Area in pasture: 12 acres. Area in abandoned cropland: 116 acres. General condition of drainage area: Poor cover, sheet and gully erosion. Note: Right edge shown Site #2 on Adolph Johanson farm. Type of structure: Drop inlet. Drainage area - 15 acres (4 acres in pasture, 11 acres in abandoned cropland). General condition of drainage area: Poor cover, serious gully & sheet erosion. It protects detention reservoir #1 & bottomland from silt. See pipe installed in third gully from right edge.

Photograph of sumac in a hay meadow. Food and shelter for wildfires. OK-1406-10.

Photograph of an aerial shot of Site #3 Mill Creek Drop Inlet and the surrounding area. The photograph also shows Site #2 Mill Creek Drop Inlet on Adolph Johnson farm on the right edge of photograph. The back of the photograph proclaims, "Watershed: Ok-SCD-20 Wa. #5, Site #3. Type of structure: Drop inlet. Drainage area: 160 acres. Soil units: Deep medium textured slowly permeable and permeable. Area in cultivation: 32 acres. Area in pasture: 12 acres. Area in abandoned cropland: 116 acres. General condition of drainage area: Poor cover, sheet and gully erosion. Note: Right edge shows Site #2 on Adolph Johnson farm. Type of structure: Drop inlet. Drainage area – 15 acres (4 acres in pasture, 11 acres in abandoned cropland). General condition of drainage area: Poor cover, serious gully & sheet erosion. It protects detention reservoir #1 & bottomland from silt. See pipe installed in third gully from right edge."

Photograph of an aerial shot of Mill Creek Site 1 Drop Inlet and the surrounding area. The back of the photograph proclaims, "Watershed: Ok-SCD-20 Wa. #5. Site #1. Type of structure: Drop Inlet. Drainage area: 57 acres. Soul units: Deep medium textured slowly permeable & permeable soils. All in pasture. General condition: Good cover but large active gullies. Protects Detention Reservoir, Site #1 and bottomland from silt."

Photograph of highway roadside undercut by floodwaters. The back of the photograph proclaims, "Under cutting by flood waters eating back away and into highway. Rock being hauled in for dumping by highway."

Photograph of a silted area of the Washita River, 1-2 feet deep, here 16", originally in alfalfa before flood. Several hundred acres of silted area. This is a silt area, some areas covered with blow sand 3-4 feet deep.

Photograph of silt caused from floods. Top fence post where sand had silted in during spring flood of 1957. Coffee Farm

Photograph of watershed: OK-SCD-20 Wa. #5, site #7. Drop inlet, type of structure. Drainage area: 74 acres (25 acres in pasture, 49 acres abandoned cropland). General conditions: gullied. Drop inlet under construction when photo shot. Protects detention reservoir #1 and bottomland from silt.

Photograph of an aerial shot of Mill Creek Site 1 Drop Inlet and the surrounding area. The back of the photograph proclaims, “Watershed: Ok-SCD-20 Wa. #5. Site #1. Type of structure: Drop Inlet. Drainage area: 57 acres. Soul units: Deep medium textured slowly permeable & permeable soils. All in pasture. General condition: Good cover but large active gullies. Protects Detention Reservoir, Site #1 and bottomland from silt.”

Photograph of Washita River Bridge, silted area of the Washita River, 1 to 2 feet deep, here 16 inches, originally in alfalfa before the flood. Several hundred acres of silted area. This is a silt area, some areas covered with blow sand 3 to 4 feet deep. OK-547-1.

Photograph of an aerial shot of Site #2 Mill Creek detention reservoir and the surrounding area. The back of the photograph proclaims, "Watershed: Ok-SCD-20 Wa. #5, Site #2. Type of structure: Detention Reservoir. Drainage area: 265 acres (all in pasture). Condition: Good and fair native grass range. Permanent storage: 0.72". Peak flow: 460 c.f.s. Release rate: 12 c.f.s. Flood storage: 3.63". Acres of bottomland protected: 40 acres immediately below in addition to system to protect Mill Creek."