Upstream Control - Revision history

Grichards at 02:48, 2 December 2022

2022-12-02T02:48:31Z

← Older revision		Revision as of 02:48, 2 December 2022
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	[[Outlet Configuration Outlet Works]]		[[Category:Outlet Configuration Outlet Works]]
	==Upstream Control with Sloping Gate==		==Upstream Control with Sloping Gate==

Grichards at 02:48, 2 December 2022

2022-12-02T02:48:05Z

← Older revision		Revision as of 02:48, 2 December 2022
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			[[Outlet Configuration Outlet Works]]
	==Upstream Control with Sloping Gate==		==Upstream Control with Sloping Gate==

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	*[[Upstream Gate Stem can be Protected by Concrete or Riprap]]		*[[Upstream Gate Stem can be Protected by Concrete or Riprap]]
	==Upstream Control with Vertical Gate==		==Upstream Control with Vertical Gate==
	Dams with vertical gates generally have the gate placed on the low-level pipe inlet or in a drop-inlet structure. Vertical gates are usually accessed by a walkway, are less expensive, and generally easier to install. Vertical gates located on a pipe inlet are only recommended on very small reservoirs, with gentle upstream slopes. On larger ponds, the gate stem and walkway are susceptible to damage from ice. In addition, if something happens to the walkway, the gate operator cannot be accessed at full pool. Vertical gates located in a drop-inlet tower have a reduced potential for ice damage and have easier access for repair. Ice can still damage towers, read further for more information.		Dams with vertical gates generally have the gate placed on the low-level pipe inlet or in a drop-inlet structure. Vertical gates are usually accessed by a walkway, are less expensive, and generally easier to install. Vertical gates located on a pipe inlet are only recommended on very small [[reservoirs]], with gentle upstream slopes. On larger ponds, the gate stem and walkway are susceptible to damage from ice. In addition, if something happens to the walkway, the gate operator cannot be accessed at full pool. Vertical gates located in a drop-inlet tower have a reduced potential for ice damage and have easier access for repair. Ice can still damage towers, read further for more information.
	<gallery mode="slideshow" >		<gallery mode="slideshow" >
	<!-- Add image files here -->		<!-- Add image files here -->
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	'''Pros of Vertical Gate:'''		'''Pros of Vertical Gate:'''
	*Easy access to gate for operation		*Easy access to gate for [[operation]]
	*Relatively easy installation		*Relatively easy installation
	*"Spilled" water is conserved (in delivery system if drop inlet is present)		*"Spilled" water is conserved (in delivery system if drop inlet is present)

Grichards at 20:48, 15 September 2022

2022-09-15T20:48:19Z

← Older revision		Revision as of 20:48, 15 September 2022
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	*[[Ice and Debris may cause Damage]]		*[[Ice and Debris may cause Damage]]


			''Note: The content on this page was originally created as part of DamOutletWorks.org (DOWL, 2018). It has subsequently been updated and reformatted as part of the Dam Safety Toolbox.''
	[[Category:Example Pages]]		[[Category:Example Pages]]
	{{Revhistinf}}		{{Revhistinf}}

Camrenbt at 17:54, 24 June 2022

2022-06-24T17:54:20Z

← Older revision		Revision as of 17:54, 24 June 2022
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	==Upstream Control with Sloping Gate==		==Upstream Control with Sloping Gate==
	~~{{Picture~~
	~~\|image=~~
	~~<!-- Add image file name (ex. image.jpg) -->~~
	~~File:slidegate.jpg~~
	~~\|link=~~
	~~<!--Add link if applicable -->~~

	~~\|caption=~~		Dams with inclined gates are common on small dams. They provide easy access for the gate operator but can present maintenance difficulties. The gate is susceptible to blockage and can be dislodged from the guides. If maintenance is required, the reservoir has to be drained. The gate stem should be buried in riprap or encase in concrete.</br></br>
	~~<!-- Add picture caption -->~~		A typical installation of an inclined slide gate:
	~~A typical installation of an inclined slide gate~~		[[File:Slidegate.jpg\|center\|700px]]
	}}
	Dams with inclined gates are common on small dams. They provide easy access for the gate operator but can present maintenance difficulties. The gate is susceptible to blockage and can be dislodged from the guides. If maintenance is required, the reservoir has to be drained. The gate stem should be buried in riprap or encase in concrete.

	'''Pros of Inclined Gate:'''		'''Pros of Inclined Gate:'''
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	*Susceptible to clogging with debris - trash rack is important.		*Susceptible to clogging with debris - trash rack is important.
	Sloping Gate Examples		Sloping Gate Examples
	Sloping Gate Example 1		*[[Sloping Gate Example 1]]
	Sloping Gate Example 2		*[[Sloping Gate Example 2]]
	Protecting the Gate		Protecting the Gate
	Upstream Gate Stem can be Protected by Concrete or Riprap		*[[Upstream Gate Stem can be Protected by Concrete or Riprap]]
	Upstream Control with Vertical Gate		==Upstream Control with Vertical Gate==
	Dams with vertical gates generally have the gate placed on the low-level pipe inlet or in a drop-inlet structure. Vertical gates are usually accessed by a walkway, are less expensive, and generally easier to install. Vertical gates located on a pipe inlet are only recommended on very small reservoirs, with gentle upstream slopes. On larger ponds, the gate stem and walkway are susceptible to damage from ice. In addition, if something happens to the walkway, the gate operator cannot be accessed at full pool. Vertical gates located in a drop-inlet tower have a reduced potential for ice damage and have easier access for repair. Ice can still damage towers, read further for more information.		Dams with vertical gates generally have the gate placed on the low-level pipe inlet or in a drop-inlet structure. Vertical gates are usually accessed by a walkway, are less expensive, and generally easier to install. Vertical gates located on a pipe inlet are only recommended on very small reservoirs, with gentle upstream slopes. On larger ponds, the gate stem and walkway are susceptible to damage from ice. In addition, if something happens to the walkway, the gate operator cannot be accessed at full pool. Vertical gates located in a drop-inlet tower have a reduced potential for ice damage and have easier access for repair. Ice can still damage towers, read further for more information.
			<gallery mode="slideshow" >
			<!-- Add image files here -->
			File:VG1.jpg\|Vertical Gate on Pipe Inlet
			File:VG2.jpg\|Vertical Gate in Drop-Inlet
			File:VG3.jpg\|Vertical Gate in Tower
			</gallery>

			'''Pros of Vertical Gate:'''
	~~Vertical Gate on Pipe Inlet~~		*Easy access to gate for operation
			*Relatively easy installation
			*"Spilled" water is conserved (in delivery system if drop inlet is present)
	~~Vertical Gate in Drop-Inlet~~		*Cost Effective
			*Hydraulically efficient gate position
			'''Cons of Vertical Gate:'''
	~~Vertical Gate in Tower~~		*Stem and riser can be damaged by ice if not protected by tower
			*If a drop inlet is not present, an auxiliary spillway designed to handle frequent flows is needed, often with high maintenance needs.
	Pros of Vertical Gate:		*Venting is required
	• Easy access to gate for operation
	• Relatively easy installation
	• "Spilled" water is conserved (in delivery system if drop inlet is present)
	• Cost Effective
	• Hydraulically efficient gate position
	Cons of Vertical Gate:
	• Stem and riser can be damaged by ice if not protected by tower
	• If a drop inlet is not present, an auxiliary spillway designed to handle frequent flows is needed, often with high maintenance needs.
	• Venting is required
	Examples		Examples
	Upstream Control with Single Gate		*[[Upstream Control with Single Gate]]
	Upstream Control with Multiple Gates		*[[Upstream Control with Multiple Gates]]
	Cautions		Cautions
	Ice and Debris may cause Damage		*[[Ice and Debris may cause Damage]]

	[[Category:Example Pages]]		[[Category:Example Pages]]
	{{Revhistinf}}		{{Revhistinf}}

Camrenbt at 17:43, 24 June 2022

2022-06-24T17:43:24Z

← Older revision		Revision as of 17:43, 24 June 2022
Line 1:		Line 1:
	Upstream Control with Sloping Gate		==Upstream Control with Sloping Gate==
	Dams with inclined gates are common on small dams. They provide easy access for the gate operator but can present maintenance difficulties. The gate is susceptible to blockage and can be dislodged from the guides. If maintenance is required, the reservoir has to be drained. The gate stem should be buried in riprap or encase in concrete.
	{{Picture		{{Picture
	\|image=		\|image=
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	A typical installation of an inclined slide gate		A typical installation of an inclined slide gate
	}}		}}
			Dams with inclined gates are common on small dams. They provide easy access for the gate operator but can present maintenance difficulties. The gate is susceptible to blockage and can be dislodged from the guides. If maintenance is required, the reservoir has to be drained. The gate stem should be buried in riprap or encase in concrete.

			'''Pros of Inclined Gate:'''
			*Hydraulically efficient gate position
	Pros of Inclined Gate:		*"Spilled" water is conserved (in delivery system)
	• Hydraulically efficient gate position		'''Cons of Inclined Gate:'''
	• "Spilled" water is conserved (in delivery system)		*Gate stem must be buried to protect from damage
	Cons of Inclined Gate:		*Easy to damage by misoperation - operator must be careful not to bend stem
	• Gate stem must be buried to protect from damage		*Susceptible to clogging with debris - trash rack is important.
	• Easy to damage by misoperation - operator must be careful not to bend stem
	• Susceptible to clogging with debris - trash rack is important.
	Sloping Gate Examples		Sloping Gate Examples
	Sloping Gate Example 1		Sloping Gate Example 1

Camrenbt: Created page with "Upstream Control with Sloping Gate Dams with inclined gates are common on small dams. They provide easy access for the gate operator but can present maintenance difficulties. The gate is susceptible to blockage and can be dislodged from the guides. If maintenance is required, the reservoir has to be drained. The gate stem should be buried in riprap or encase in concrete. {{Picture |image= File:slidegate.jpg |link=