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 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 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 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 #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."

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 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 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 an aerial shot of bottomland alfalfa just below site 15, Mill Creek near the Colvert Bros. Hereford Ranch. Site 15 Mill Creek is in the background of the photograph. The back of the photograph proclaims, "Bottom land alfalfa just below site 15, Mill Creek. Two years ago Colvert Bros. lost 1000 bales of alfalfa in one flood. This alfalfa is approximately 1 foot high and ready for outing. You can see the scour channels in alfalfa, evidence of frequent overflow and damage in the past."

Photograph of drop inlet type structure with flood water diversion for sediment control. Drainage area 50 acres. Flood water and sediment from te badly gullied area is brought into the pont (#113) by floodwater diversion from the left. Here the sediment is trapped in the pond and the clear water is drawn off the top 3 ft. (of the pond) through a 15" drop inlet type of metal pipe. Additional work above the diversion was done by enthusiastic farmers. Property line (trees) runs through pond.

Photograph of dam which is 1600" long. It has a maximum height of 39' and contains 104,500 eu. yards. It is one of 24 planned reservoirs for the Mill Creek system. In addition to reducing the floods on the main stem of Mill Creek it gives 100% protection to the alfalfa field shown in Okla.-98630.

Photograph of dam that was completed late in the fall of 1949. In this picture the permenent pool lacks approximately 4" of being up to the lip of the drop inlet riser.

Photograph of one end of dam on Detention Reservoir - Site No. 15. (old site No. 1, Tishomingo area). This dam makes a huge dogleg turn and cannot be photographed to show the whole dam except from the air. The dam rises 25 feet about the level of the water in the permanant pool.

Photograph of the permanent pool is full in this view. This reservoir will hold an additional 12 ft. of depth before the emergency spillway on extreme left (not shown) will begin to function. Flood water release is through an 18" metal pipe inlet. Trash rack (at center of dam) for this drop inlet is visable.

Photograph of bottom land alfalfa just below site 15, Mill Creek. Two years ago Calvert Bros. lost 1,000 bales of alfalfa in one flood. This alfalfa is approximately 1 foot high and ready for cutting. You can see the scour channels in alfalfa, evidence of frequent overflow and damage in the past.

Photograph of protected bottomland below Site 17, Mill Creek.

Photograph of Calvert Bros. Herford Ranch in background. Bottomland alfalfa in left background protected by this detention reservoir.

Photograph of arial view of floodwater diverstion and drop inlet equipped sediment trap (pond) protects fertile bottomlands.

Photograph of aerial view of a permanent pool full in this view. This reservoir will hold an additional 12 ft. of depth before the emergency spillway on extreme left (not shown) will begin to function. Flood water release is through an 18" metal pipe inlet. Trash rack (at center of dam) for this drop inlet is visible.

Photograph of aerial view of bottom land alfalfa just below site 15, Mill Creek. Two years ago Colvert Bros. lost 1,000 bales of alfalfa in one flood. This alfalfa is approximately 1 foot high and ready for cutting. You can see the scour channels in alfalfa, evidence of frequent overflow and damage in the past.

Photograph of aerial view of dam that was completed late in the Fall of 1940. In this the permanent pool lacks approximately 4' of being up to the lip of the drop inlet riser.

Photograph of 1600' long dam. It has a maximum height of 39' and contains 104,500 cu. yards. It is one of 24 planned reservoirs for the Mill Creek system. In addition to reducing the floods on the main stem of Mill Creek it gives 100% protection to the alfalfa field shown in Okla. -9863C.

Photograph of aerial view of Calvert Bros. Hereford Ranch in background. Bottomland alfalfa in left background protected by this detention reservoir.

Photograph of aerial view of protected bottomland below Site 17, Mill Creek.