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 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 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 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."