Alan Henry Spillway
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Alan Henry Spillway completed
Particulars
Owner: unknown
Designer: Freese & Nichols
Contractor: Granite Construction Co.
Statistics
Type: Gravity
Purpose(s): Water Supply
Reservoir capacity: 140 m3x106
Height: 25 metres
Length: 84 metres
Volume of RCC: 22 m3x103
Total volume: 23 m3x103
Construction Dates
Start of Project: 03/91 (March 1991)
Start of RCC: 12/91 (December 1991)
End of RCC: 04/92 (April 1992)
End of Project: —/93 (— 1993)
Country: USA
River: Double Mountain Fork
DMS Co-ordinates: 33˚3'47.33"N, 101˚2'48.75"W
DD Co-ordinates: 33.063148, -101.046875
Facings
Upstream
| Slope | Type |
|---|---|
| Vertical | Reinforced concrete cast against precast units or slip-formed facing elements |
Downstream
| Slope | Type |
|---|---|
| 1.10 | Unformed face of RCC |
Spillway
| Slope | Type |
|---|---|
| ogee | Traditional concrete against formwork |
Placement
| Layers (mm) | Lifts (mm) |
|---|---|
| 300 | 300 |
Cementitious material
| Cement (kg/m3) |
|---|
| 119 |
| Pozzolan (kg/m3) | Pozzolan Type |
|---|---|
| 59 | Low-lime flyash (ASTM Class F) |
