700Bb08: Wooden headgate viewed from right bank

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700Bb09: Headgate structure with man standing on structure

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700Bb10: View of headgate from left side

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700Bb12: View from right side of headgate, damaged bricks on right side of image

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700Bb13: View of headgate from left side, wooden posts along edge of water

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700Bb14: View of headgate from left side with large tree on right side

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700Bb15: Headgate with man standing on structure operating hand wheels

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700Bb16: Headgate with six openings, foliage surrounding structure

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700Aa07: Upstream face of Halligan Dam

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700Bb17: Headgate with six openings, no foliage in background

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700Bd01: "Headgate on Alamosa River, showing adaptation of lever lift. San Luis Valley...

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700Bd02: Detail of lifting device for headgate with gears and handwheel

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700Bf01: View of drift guard

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700Bf02: View of drift guard with reservoir body on left side of structure

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700C01: Sandgate and sluiceway

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700C02: Sandgate and sluiceway

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700E01: "Concrete chute, Uncompahgre Project, Montrose"

Title information from "Frictional resistance in artificial waterways" by V.M. Cone, R.E. Trimble and P.S. Jones

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700E02: Ditch with water in grassy landscape and car in background

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700E03: Looking uphill at drop structure with water

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700Aa08: Downstream face of Halligan Dam while actively spilling

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700F01: Looking upstream at series of concrete drop structures with water

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700F02: Rectangular weir with four sections with water

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700F03: Rectangular weir with four sections and structure with water

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700F05: Headgate

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700F06: Drainage drop structure on steep slope

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