823 - Water Mains - Revision history

Clarkj25: /* MEASUREMENT AND PAYMENT */

2024-10-23T16:00:38Z

MEASUREMENT AND PAYMENT

Clarkj25 at 18:01, 27 September 2023

2023-09-27T18:01:14Z

Clarkj25: /* INSPECTION & TESTING */

2023-09-21T16:55:59Z

INSPECTION & TESTING

Clarkj25: /* MATERIALS */

2023-09-21T16:53:17Z

MATERIALS

Clarkj25 at 16:49, 21 September 2023

2023-09-21T16:49:42Z

Clarkj25: /* INSPECTION & TESTING */

2023-09-21T16:39:52Z

INSPECTION & TESTING

Clarkj25: /* INSPECTION & TESTING */

2023-09-21T16:37:21Z

INSPECTION & TESTING

Clarkj25: /* INSPECTION & TESTING */

2023-09-21T16:32:52Z

INSPECTION & TESTING

Clarkj25: /* INSPECTION & TESTING */

2023-09-21T16:31:42Z

INSPECTION & TESTING

Clarkj25: /* INSPECTION & TESTING */

2023-09-21T16:30:54Z

INSPECTION & TESTING

@@ Line 231: / Line 231: @@
 Sketches should be utilized for the calculation of the quantity that was placed.  This will include measurements as described to accurately reflect what was installed.
-The Inspector will need to utilized Form 1174R, Inspectors’ Report of Concrete Placed, for each day the Contractor pours concrete.  This work is associated with thrust blocks. The form should be distributed as called out and the Inspector should include this with the IDR.
+The Inspector will need to utilized Form 1174R, Inspectors’ Report of Concrete Placed, for each day the Contractor pours concrete.  This work is associated with thrust blocks. The form should be distributed as called out and the Inspector should include this with the DWR.
-With each IDR the Inspector should include a copy of Form 0582B, Moisture & Density Determination – Nuclear Method.
+With each DWR the Inspector should include a copy of Form 0582B, Moisture & Density Determination – Nuclear Method.
 Delivery tickets must be verified for the source of material against approved Material Source List.  Each ticket should contain the following:

← Older revision		Revision as of 18:01, 27 September 2023
Line 250:		Line 250:
	[[Category: Division 8]]		[[Category: Division 8]]
	[[Category: Section 823]]		[[Category: Section 823]]
		+	[[Category: New CM Format]]

@@ Line 172: / Line 172: @@
 :##Use a temporary plug at the pipe’s open end to prevent entrance of foreign materials.
-Figure 6Laying pipe in trench
 :#Verify the contractor sets valves, fittings, and hydrants to plan locations. Document the locations with stationing and offsets.
@@ Line 181: / Line 184: @@
 :##Obtain offset and depth location for each thrust control and verify distance from each fitting.
-Figure 7 Water main with gate valves, tee and reducer
 :#Service leads:
@@ Line 210: / Line 216: @@
 :##Upon completion of the required testing, the Contractor’s tie-in work will take place. The Contractor will disinfect the remaining piece of pipe needed to connect the new water main to the existing main with a chlorine swab. This work needs to be verified by the Inspector. Because the connection piece is not Bac-T tested, there is a maximin length allowed for connection. See contract documents or contact engineer for specific maintaining agency requirements.
-Figure 8Pressure test
 ==[[#MEASUREMENT AND PAYMENT|MEASUREMENT AND PAYMENT]]==

@@ Line 28: / Line 28: @@
-Figure 2 Pipe with flange pipe fitting
+[[File:823-2.jpg|600px|thumb|center|'''Figure 2 - Pipe with Flange Pipe Fitting''']]
 === '''Water Services''' ===
@@ Line 45: / Line 46: @@
 Valve and Curb Boxes must meet the material requirements per Section 923 of the Standard Specifications for Construction.  The boxes, made of cast iron, are installed over  gate valves that are used for service shut offs or hydrants.  Refer to special details associated with the water main work as maintaining agencies have different requirement.
-Figure 3Valve Box
 === '''Corporation Stop and Curb Stop''' ===
 Corporation stop and curb stop must meet the material requirements per Section 923 of the Standard Specifications for Construction.  Corporation stop’s screw into the municple water main and a curb stop is what is used to shot of water to residence.  Refer to special details associated with the water main work as maintaining agencies have different requirements.
-Figure 4 Corporation stop with double strap saddle
 === '''Service Saddle''' ===
@@ Line 58: / Line 64: @@
 Hydrants must meet the material requirements per Section 923 of the Standard Specifications for Construction.  Hydrants serve as discharge points so that water can be delivered from the distribution system.  Hydrants serve as an important means of assisting emergency services.  Refer to special details associated with the water main work as maintaining agencies have different requirements.
-Figure 5 Hydrant installation, with gate valve
 === '''Backfill material''' ===

← Older revision		Revision as of 16:49, 21 September 2023
Line 24:		Line 24:


−		+	[[File:823-1.jpg\|600px\|thumb\|center\|'''Figure 1 - Example of Mechanical Joint Restraint''']]
−	Figure ~~1Example~~ of ~~mechanical joint restraint~~	+

@@ Line 188: / Line 188: @@
 :##Obtain density shots for each lift.
 :#Pressure and bacteriological testing:
-a.	Pressure test:
+:##Pressure test:
-i.	A pressure test consists of a specified pressure performed over a 2-hour period. The maintaining agency will typically observe the testing.
+:###A pressure test consists of a specified pressure performed over a 2-hour period. The maintaining agency will typically observe the testing.
-ii.	Acceptance of the pressure test will be based on the project specifications.  The testing procedures verify compliance for the size and length of the pipe.
+:###Acceptance of the pressure test will be based on the project specifications.  The testing procedures verify compliance for the size and length of the pipe.
-iii.	If the pressure test fails, the Contractor will be required to find the leak and repair it. A new pressure test will be performed.
+:###If the pressure test fails, the Contractor will be required to find the leak and repair it. A new pressure test will be performed.
-iv.	Document results and approval from maintaining agency.
+:###Document results and approval from maintaining agency.
-b.	Bacteriological Test (Bac-T):
+:##Bacteriological Test (Bac-T):
-i.	Consists of flushing, disinfection, and 2 consecutive safe samples taken at 24-hour intervals for each section of pipe tested.
+:###Consists of flushing, disinfection, and 2 consecutive safe samples taken at 24-hour intervals for each section of pipe tested.
-ii.	Coordination with the maintaining agency is required following the successful pressure test.
+:###Coordination with the maintaining agency is required following the successful pressure test.
-iii.	A failure of one test will require retesting.
+:###A failure of one test will require retesting.
-iv.	Document results and approval from maintaining agency.
+:###Document results and approval from maintaining agency.
-.	Final tie-in of new main into an existing main:
+:#Final tie-in of new main into an existing main:
-a.	Upon completion of the required testing, the Contractor’s tie-in work will take place. The Contractor will disinfect the remaining piece of pipe needed to connect the new water main to the existing main with a chlorine swab. This work needs to be verified by the Inspector. Because the connection piece is not Bac-T tested, there is a maximin length allowed for connection. See contract documents or contact engineer for specific maintaining agency requirements.
+:##Upon completion of the required testing, the Contractor’s tie-in work will take place. The Contractor will disinfect the remaining piece of pipe needed to connect the new water main to the existing main with a chlorine swab. This work needs to be verified by the Inspector. Because the connection piece is not Bac-T tested, there is a maximin length allowed for connection. See contract documents or contact engineer for specific maintaining agency requirements.
 Figure 8Pressure test

@@ Line 156: / Line 156: @@
 :#Verify that all pipe bedding and backfill of excavated trenches is clean, dry, and meets design requirements.
 :#When the contractor is connecting two pipes, ensure the pipe bell is clean and install the required joint gasket. Verify there is no debris in the pipe before installation. Verify the contractor lubricates the gasket and spigot immediately prior to assembly. The contractor should not use an excavator to “drive the pipe home” as this can damage the pipe.
-::**Verify the correct gasket is used as one manufacturer’s specific gasket may not fit a different manufacturer’s pipe.
+:##Verify the correct gasket is used as one manufacturer’s specific gasket may not fit a different manufacturer’s pipe.
-::**Obtain grade shots every 50 feet and document the grades on the as-built plans.
+:##Obtain grade shots every 50 feet and document the grades on the as-built plans.
-::**Obtain offset location of the water main. Use an existing feature that will not be subject to removal, this includes a curb line or building.
+:##Obtain offset location of the water main. Use an existing feature that will not be subject to removal, this includes a curb line or building.
-::**Obtain offset location for any deflections.
+:##Obtain offset location for any deflections.
-::**Record this information on the as-built document.
+:##Record this information on the as-built document.
-::**Use a temporary plug at the pipe’s open end to prevent entrance of foreign materials.
+:##Use a temporary plug at the pipe’s open end to prevent entrance of foreign materials.
 Figure 6Laying pipe in trench
-:5.	Verify the contractor sets valves, fittings, and hydrants to plan locations. Document the locations with stationing and offsets.
+:#Verify the contractor sets valves, fittings, and hydrants to plan locations. Document the locations with stationing and offsets.
-::a.	Verify mechanical joints are tightened evenly and gasketed joints are restrained with “gripper gaskets” per the manufacturer.
+:##Verify mechanical joints are tightened evenly and gasketed joints are restrained with “gripper gaskets” per the manufacturer.
-::b.	Obtain grade shots for each location.
+:##Obtain grade shots for each location.
-::c.	Obtain offset location from an existing feature that will not be subject to removal.  Record this information on the as-built document.
+:##Obtain offset location from an existing feature that will not be subject to removal.  Record this information on the as-built document.
-::d.	The contractor should provide thrust control at all fittings. Requirements can verify by maintaining agency. Verify that an approved thrust block is used. A detail may be included in the project plans.  Obtain offset and depth location for each thrust control and verify distance from each fitting.
+:##The contractor should provide thrust control at all fittings. Requirements can verify by maintaining agency. Verify that an approved thrust block is used. A detail may be included in the project plans.
 Figure 7 Water main with gate valves, tee and reducer
-.	Service leads:
+:#Service leads:
-a.	Service leads typically are tapped at 45 degrees above the center of the water main pipe. Run service leads at a 90-degree angle from the distribution line.
+:##Service leads typically are tapped at 45 degrees above the center of the water main pipe. Run service leads at a 90-degree angle from the distribution line.
-i.	Document the location of the tap, both depth and distance from a point that will not be subject to removal.
+:###Document the location of the tap, both depth and distance from a point that will not be subject to removal.
-ii.	Record this information on the as-built document.
+:####Record this information on the as-built document.
-iii.	Some maintaining agencies require a service card in which a diagram of the install is presented.
+:###Some maintaining agencies require a service card in which a diagram of the install is presented.
-b.	Service leads are required to be copper.  If a service lead is found during construction, that wasn’t called out on the plans, bring this to the attention of the Engineer immediately.
+:##Service leads are required to be copper.  If a service lead is found during construction, that wasn’t called out on the plans, bring this to the attention of the Engineer immediately.
-c.	If replacing an existing service that is not made of copper the service will have to be replaced from the main to the building in one stage/run, regardless of any associated roadway construction staging. Water services may not be replaced part-width unless the existing service is copper. This is a requirement of the Michigan Department of Environment, Great Lakes, and Energy (EGLE)
+:##If replacing an existing service that is not made of copper the service will have to be replaced from the main to the building in one stage/run, regardless of any associated roadway construction staging. Water services may not be replaced part-width unless the existing service is copper. This is a requirement of the Michigan Department of Environment, Great Lakes, and Energy (EGLE)
-.	Polyethylene encasement:
+:#Polyethylene encasement:
-a.	Before a pipe is placed in the utility trench, the Contractor will slip the polyethylene wrap (commonly referred to as “poly wrap” around the pipe. Loose ends will be taped.
+:##Before a pipe is placed in the utility trench, the Contractor will slip the polyethylene wrap (commonly referred to as “poly wrap” around the pipe. Loose ends will be taped.
-.	Backfill:
+:#Backfill:
-a.	Tamp additional bedding in place up the midpoint of the utility and consolidate this material under the pipe’s spring point. Use hand operated compactors to achieve the required compaction.
+:##Tamp additional bedding in place up the midpoint of the utility and consolidate this material under the pipe’s spring point. Use hand operated compactors to achieve the required compaction.
-b.	Place bedding in maximum lifts of 8 to 12 inches using approved trench backfill material as indicated in the project plans.
+:##Place bedding in maximum lifts of 8 to 12 inches using approved trench backfill material as indicated in the project plans.
-c.	Obtain density shots for each lift.
+:##Obtain density shots for each lift.
-.	Pressure and bacteriological testing:
+:#Pressure and bacteriological testing:
 a.	Pressure test:
 i.	A pressure test consists of a specified pressure performed over a 2-hour period. The maintaining agency will typically observe the testing.

@@ Line 152: / Line 152: @@
 The following steps should be taken by the Inspector during construction:
-:1.	Observe installation pipe, fittings, and appurtenances in accordance with manufacturer’s recommendations.
+:#Observe installation pipe, fittings, and appurtenances in accordance with manufacturer’s recommendations.
-:2.	Monitor the excavation of the trench to verify the top of pipe meets the minimum depth requirements shown on the plans. The minimum trench width should be 3 to 4 times the pipe diameter to allow for work on all sides of the pipe, unless specified on the plans.
+:#Monitor the excavation of the trench to verify the top of pipe meets the minimum depth requirements shown on the plans. The minimum trench width should be 3 to 4 times the pipe diameter to allow for work on all sides of the pipe, unless specified on the plans.
-:3.	Verify that all pipe bedding and backfill of excavated trenches is clean, dry, and meets design requirements.
+:#Verify that all pipe bedding and backfill of excavated trenches is clean, dry, and meets design requirements.
-:4.	When the contractor is connecting two pipes, ensure the pipe bell is clean and install the required joint gasket. Verify there is no debris in the pipe before installation. Verify the contractor lubricates the gasket and spigot immediately prior to assembly. The contractor should not use an excavator to “drive the pipe home” as this can damage the pipe.
+:#When the contractor is connecting two pipes, ensure the pipe bell is clean and install the required joint gasket. Verify there is no debris in the pipe before installation. Verify the contractor lubricates the gasket and spigot immediately prior to assembly. The contractor should not use an excavator to “drive the pipe home” as this can damage the pipe.
-::a.	Verify the correct gasket is used as one manufacturer’s specific gasket may not fit a different manufacturer’s pipe.
+:##	Verify the correct gasket is used as one manufacturer’s specific gasket may not fit a different manufacturer’s pipe.
 ::b.	Obtain grade shots every 50 feet and document the grades on the as-built plans.
 ::c.	Obtain offset location of the water main. Use an existing feature that will not be subject to removal, this includes a curb line or building.