404 - Underdrain - Revision history

Jhudson-fishbeck at 17:52, 15 October 2025

2025-10-15T17:52:27Z

Jhudson-fishbeck at 14:02, 14 October 2025

2025-10-14T14:02:49Z

Jhudson-fishbeck: /* Outletting Underdrain */

2025-10-14T14:02:06Z

Outletting Underdrain

Jhudson-fishbeck: /* Outletting Underdrain */

2025-10-14T14:01:56Z

Outletting Underdrain

Jhudson-fishbeck: /* Open-Graded Underdrain */

2025-10-14T14:01:11Z

Open-Graded Underdrain

Jhudson-fishbeck: /* Subbase Underdrain */

2025-10-14T14:00:36Z

Subbase Underdrain

Jhudson-fishbeck: /* PRECONSTRUCTION */

2025-10-14T13:59:40Z

PRECONSTRUCTION

Jhudson-fishbeck: /* Pictures of Equipment */

2025-10-14T13:58:34Z

Pictures of Equipment

Jhudson-fishbeck: /* Pictures of Materials */

2025-10-14T13:58:12Z

Pictures of Materials

Clarkj25 at 15:13, 8 October 2025

2025-10-08T15:13:21Z

@@ Line 59: / Line 59: @@
 |+
 |-
-| [[File:208-009.jpg|200px|thumb|center|34RAggregate]]|| [[File:Class II Granular Material.jpg|200px|thumb|center|Class II Sand]]
+| [[File:208-009.jpg|200px|thumb|center|'''34R Aggregate''']]|| [[File:Class II Granular Material.jpg|200px|thumb|center|'''Class II Sand''']]
 |-
-| [[File:404 (3).jpg|200px|thumb|center|Underdrain Outlet End Section with Grate]] || [[File:404 (4).jpg|200px|thumb|center|Underdrain Pipe Both Wrapped and Unwrapped]]
+| [[File:404 (3).jpg|200px|thumb|center|'''Underdrain Outlet End Section with Grate''']] || [[File:404 (4).jpg|200px|thumb|center|'''Underdrain Pipe Both Wrapped and Unwrapped''']]
 |}
@@ Line 88: / Line 88: @@
 |+
 |-
-| [[File:404 (5).jpg|200px|thumb|center|Dump Truck, Bulldozer, and Skid Steer Installing Subbase Underdrain and Subbase]] || [[File:Pipe trencher.jpg|200px|thumb|center|Pipe Trencher Installing Underdrain]]
+| [[File:404 (5).jpg|200px|thumb|center|'''Dump Truck, Bulldozer, and Skid Steer Installing Subbase Underdrain and Subbase''']] || [[File:Pipe trencher.jpg|200px|thumb|center|'''Pipe Trencher Installing Underdrain''']]
 |}
@@ Line 131: / Line 131: @@
 |+
 |-
-| [[File:404 (7).jpg|200px|thumb|left|Sample Plan Sheet indicating Outlet Locations]]
+| [[File:404 (7).jpg|200px|thumb|left|'''Sample Plan Sheet indicating Outlet Locations''']]
 |}
 {{top}}
@@ Line 162: / Line 162: @@
 |+
 |-
-| [[File:404 (8).jpg|200px|thumb|center|Subbase Underdrain Pipe Installed in Trench]]
+| [[File:404 (8).jpg|200px|thumb|center|'''Subbase Underdrain Pipe Installed in Trench''']]
 |}
@@ Line 174: / Line 174: @@
 |+
 |-
-| [[File:404 (9).jpg|200px|thumb|center|Open-Graded Pipe in the Lined Trench]] || [[File:404 (10).jpg|200px|thumb|center|34R Backfill Place in the Open-Graded Underdrain Tench]]
+| [[File:404 (9).jpg|200px|thumb|center|'''Open-Graded Pipe in the Lined Trench''']] || [[File:404 (10).jpg|200px|thumb|center|'''34R Backfill Place in the Open-Graded Underdrain Tench''']]
 |}
@@ Line 183: / Line 183: @@
 |+
 |-
-| [[File:404 (11).jpg|200px|thumb|center|PVC Outlet for Subbase Underdrain]] || [[File:404 (12).jpg|200px|thumb|center|Underdrain Outlet Tapped into a Drainage Structure]]
+| [[File:404 (11).jpg|200px|thumb|center|'''PVC Outlet for Subbase Underdrain''']] || [[File:404 (12).jpg|200px|thumb|center|'''Underdrain Outlet Tapped into a Drainage Structure''']]
 |}

@@ Line 59: / Line 59: @@
 |+
 |-
-| [[File:208-009.jpg|200px|thumb|center|'''''34RAggregate''''']]|| [[File:Class II Granular Material.jpg|200px|thumb|center|'''''Class II Sand''''']]
+| [[File:208-009.jpg|200px|thumb|center|34RAggregate]]|| [[File:Class II Granular Material.jpg|200px|thumb|center|Class II Sand]]
 |-
-| [[File:404 (3).jpg|200px|thumb|center|'''''Underdrain Outlet End Section with Grate''''']] || [[File:404 (4).jpg|200px|thumb|center|'''''Underdrain Pipe Both Wrapped and Unwrapped''''']]
+| [[File:404 (3).jpg|200px|thumb|center|Underdrain Outlet End Section with Grate]] || [[File:404 (4).jpg|200px|thumb|center|Underdrain Pipe Both Wrapped and Unwrapped]]
 |}
@@ Line 88: / Line 88: @@
 |+
 |-
-| [[File:404 (5).jpg|200px|thumb|center|'''''Dump Truck, Bulldozer, and Skid Steer Installing Subbase Underdrain and Subbase''''']] || [[File:Pipe trencher.jpg|200px|thumb|center|'''''Pipe Trencher Installing Underdrain''''']]
+| [[File:404 (5).jpg|200px|thumb|center|Dump Truck, Bulldozer, and Skid Steer Installing Subbase Underdrain and Subbase]] || [[File:Pipe trencher.jpg|200px|thumb|center|Pipe Trencher Installing Underdrain]]
 |}

@@ Line 183: / Line 183: @@
 |+
 |-
-| [[File:404 (11).jpg|200px|thumb|center|PVC Outlet for Subbase Underdrain]] || [[File:404 (12).jpg|300px|thumb|center|Underdrain Outlet Tapped into a Drainage Structure]]
+| [[File:404 (11).jpg|200px|thumb|center|PVC Outlet for Subbase Underdrain]] || [[File:404 (12).jpg|200px|thumb|center|Underdrain Outlet Tapped into a Drainage Structure]]
 |}

@@ Line 183: / Line 183: @@
 |+
 |-
-| [[File:404 (11).jpg|300px|thumb|center'''''PVC Outlet for Subbase Underdrain''''']] || [[File:404 (12).jpg|300px|thumb|center|'''''Underdrain Outlet Tapped into a Drainage Structure''''']]
+| [[File:404 (11).jpg|200px|thumb|center|PVC Outlet for Subbase Underdrain]] || [[File:404 (12).jpg|300px|thumb|center|Underdrain Outlet Tapped into a Drainage Structure]]
 |}

@@ Line 174: / Line 174: @@
 |+
 |-
-| [[File:404 (9).jpg|300px|thumb|center'''''Open-Graded Pipe in the Lined Trench''''']] || [[File:404 (10).jpg|300px|thumb|center|'''''34R Backfill Place in the Open-Graded Underdrain Tench''''']]
+| [[File:404 (9).jpg|200px|thumb|center|Open-Graded Pipe in the Lined Trench]] || [[File:404 (10).jpg|200px|thumb|center|34R Backfill Place in the Open-Graded Underdrain Tench]]
 |}

@@ Line 159: / Line 159: @@
 Subbase underdrain is installed a maximum of 10 inches below the top of the subgrade either under the roadway or shoulder. If installed under the roadway, the placement is typically designed to not be under a wheel path of traffic. Once the trench is excavated and the bottom of the trench formed to the shape of the pipe, wrapped underdrain pipe is placed in the trench. Granular material Class II AA is placed as backfill around the pipe and to the top of the trench. A minimum of 2 inches of cover from the top of the underdrain pipe to the bottom of the subbase must be obtained. Caution needs to be used during compaction of the backfill to ensure the pipe is not damaged while compacting the backfill material.
-[[File:404 (8).jpg|300px|thumb|center|'''''Subbase Underdrain Pipe Installed in Trench''''']]
+{|
 === Open-Graded Underdrain ===

@@ Line 128: / Line 128: @@
 In some instances, the plans may detail the intended outlet locations, a review of the plans is warranted.
-[[File:404 (7).jpg|300px|thumb|center|'''''Sample Plan Sheet indicating Outlet Locations''''']]
+{|
 {{top}}

← Older revision		Revision as of 15:13, 8 October 2025
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	[[Category:Division 4]]		[[Category:Division 4]]
	[[Category:Section 404]]		[[Category:Section 404]]
		+	[[Category:New CM Format]]