Tunnels - Revision history

Jeremy.franz@state.co.us at 15:08, 27 March 2026

2026-03-27T15:08:15Z

← Older revision		Revision as of 15:08, 27 March 2026
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	{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance\| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance, FERC]]		{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance\| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance, FERC]]
	{{Document Icon}} [[Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns)\| Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns), USBR]]		{{Document Icon}} [[Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns)\| Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns), USBR]]
			{{Document Icon}} [[Engineering and Design of Tunnels and Shafts in Rock (EM 1110-2-2901)\| Engineering and Design of Tunnels and Shafts in Rock (EM 1110-2-2901), USACE]]

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Alynch@gfnet.com at 22:31, 18 July 2023

2023-07-18T22:31:13Z

← Older revision		Revision as of 22:31, 18 July 2023
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	<!-- Add picture caption -->		<!-- Add picture caption -->
	\|caption=Typical tunnel diagram		\|caption=Typical tunnel diagram
	(Image ~~Credit~~: FERC)		(Image Source: FERC)
	}}		}}

Mpollei@gfnet.com at 21:16, 18 July 2023

2023-07-18T21:16:09Z

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	\|link=		\|link=
	<!-- Add picture caption -->		<!-- Add picture caption -->
	\|caption=Typical tunnel diagram (FERC)		\|caption=Typical tunnel diagram
			(Image Credit: FERC)
	}}		}}

Mpollei@gfnet.com at 19:45, 11 July 2023

2023-07-11T19:45:43Z

← Older revision		Revision as of 19:45, 11 July 2023
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	<noautolinks>==Best Practices Resources==</noautolinks>		<noautolinks>==Best Practices Resources==</noautolinks>
	{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance\| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance, FERC~~, 2018~~]]		{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance\| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance, FERC]]
	{{Document Icon}} [[Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns)\| Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns), USBR~~, 2014~~]]		{{Document Icon}} [[Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns)\| Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns), USBR]]

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Rmanwaring at 00:44, 14 December 2022

2022-12-14T00:44:29Z

← Older revision		Revision as of 00:44, 14 December 2022
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	Tunnels are long underground excavations with two or more openings to the surface, usually having a uniform cross section used for access, conveying flows, etc. Tunnels are most often used in mountainous areas. Tunnels can be divided into two basic types, lined and unlined.		Tunnels are long underground excavations with two or more openings to the surface, usually having a uniform cross section used for access, conveying flows, etc. Tunnels are most often used in mountainous areas. Tunnels can be divided into two basic types, lined and unlined.

	==Best Practices Resources==		<noautolinks>==Best Practices Resources==</noautolinks>
	{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance\| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance ~~(Federal Energy Regulatory Commission)~~]]		{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance\| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance, FERC, 2018]]
	{{Document Icon}} [[Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns)\| Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns) ~~(Bureau of Reclamation)~~]]		{{Document Icon}} [[Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns)\| Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns), USBR, 2014]]


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Grichards at 02:53, 18 November 2022

2022-11-18T02:53:50Z

← Older revision		Revision as of 02:53, 18 November 2022
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	<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->		<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
	__NOTOC__		__NOTOC__
			[[Category:Water Conveyance]]
	----		----
	{{Picture		{{Picture

Grichards at 06:15, 16 September 2022

2022-09-16T06:15:41Z

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	__NOTOC__		__NOTOC__
	----		----
			{{Picture
			<!-- Add image file name (ex.image.jpg) -->
			\|image=tunnel1.jpg
			<!--Add link if applicable -->
			\|link=
			<!-- Add picture caption -->
			\|caption=Typical tunnel diagram (FERC)
			}}

	<!-- Introductory paragraph or topic page summary -->		<!-- Introductory paragraph or topic page summary -->

Grichards at 06:01, 16 September 2022

2022-09-16T06:01:49Z

← Older revision		Revision as of 06:01, 16 September 2022
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	<!-- Introductory paragraph or topic page summary -->		<!-- Introductory paragraph or topic page summary -->
	A long underground ~~excavation~~ with two or more openings to the surface, usually having a uniform cross section used for access, conveying flows, etc. Tunnels are most often used in mountainous areas. Tunnels can be divided into two basic types, lined and unlined.		Tunnels are long underground excavations with two or more openings to the surface, usually having a uniform cross section used for access, conveying flows, etc. Tunnels are most often used in mountainous areas. Tunnels can be divided into two basic types, lined and unlined.

	==Best Practices Resources==		==Best Practices Resources==

Grichards: Created page with " NOTOC ---- A long underground excavation with two or more openings to the surface, usually having a uniform cross section used for access, conveying flows, etc. Tunnels are most often used in mountainous areas. Tunnels can be divided into two basic types, lined and unlined. ==Best Practices Resources== {{Document I..."

2022-09-16T06:01:28Z

Created page with " __NOTOC__ ----  A long underground excavation with two or more openings to the surface, usually having a uniform cross section used for access, conveying flows, etc. Tunnels are most often used in mountainous areas. Tunnels can be divided into two basic types, lined and unlined. ==Best Practices Resources== {{Document I..."

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__NOTOC__
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A long underground excavation with two or more openings to the surface, usually having a uniform cross section used for access, conveying flows, etc. Tunnels are most often used in mountainous areas. Tunnels can be divided into two basic types, lined and unlined.

==Best Practices Resources==
{{Document Icon}} [[Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance| Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 12- Water Conveyance (Federal Energy Regulatory Commission)]]
{{Document Icon}} [[Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns)| Design Standards No. 3: Water Conveyance Facilities, Fish Facilities, and Roads and Bridges (Ch. 4: Tunnels, Shafts, and Caverns) (Bureau of Reclamation)]]


{{Citations}}


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