402 - Storm Sewers - Revision history

Clarkj25: /* Reinforced Concrete Pipe Rejection Criteria Per 909.04.A and AASHTO M170/M242 */

2026-05-19T15:27:16Z

Reinforced Concrete Pipe Rejection Criteria Per 909.04.A and AASHTO M170/M242

Clarkj25: /* PRECONSTRUCTION */

2026-05-19T15:20:45Z

PRECONSTRUCTION

Clarkj25 at 15:20, 19 May 2026

2026-05-19T15:20:26Z

Clarkj25: /* Plastic Pipe (PPP, CPE, and CPV) */

2026-05-14T15:29:12Z

Plastic Pipe (PPP, CPE, and CPV)

Clarkj25: /* Plastic Pipe (PPP, CPE, and CPV) */

2026-05-14T15:28:40Z

Plastic Pipe (PPP, CPE, and CPV)

Clarkj25: /* MATERIALS */

2026-05-14T15:28:16Z

MATERIALS

Clarkj25: /* MATERIALS */

2026-05-14T15:26:10Z

MATERIALS

Clarkj25: /* Metal Pipe (CMP and CSP) */

2026-05-14T15:24:00Z

Metal Pipe (CMP and CSP)

Clarkj25: /* MATERIALS */

2026-05-14T15:23:22Z

MATERIALS

Clarkj25: /* MATERIALS */

2026-05-14T15:21:54Z

MATERIALS

@@ Line 105: / Line 105: @@
 Concrete pipe is precast by a manufacturer and is made of cementitious materials, aggregates, and in most cases steel reinforcement.
-===== Reinforced Concrete Pipe Rejection Criteria Per 909.04.A and AASHTO M170/M242 =====
+===== Reinforced Concrete Pipe Rejection Criteria Per [https://mdotwiki.state.mi.us/images_construction/9/95/2020-Standard-Specifications-Construction.pdf#page=878 909.04.A] and AASHTO M170/M242 =====
 * Fractures or cracks passing through the shell, except for a single end crack that does not exceed the depth of the joint.
 *Defects that indicate imperfect proportioning, mixing or molding.
@@ Line 113: / Line 113: @@
 *Any continuous crack having a surface width of 0.01 inch (0.25 mm) or more and extending for a length of 12 inches (300 mm) or more, regardless of position in the wall of the pipe.
 *Small imperfections in manufacture or damage during handling. These may be repaired as long as repairs are sound and properly finished and cured.
 ==== Metal Pipe (CMP and CSP) ====

@@ Line 184: / Line 184: @@
 #** The pipe must be accompanied by the manufacturer’s certification, tested stock reports, or other requirements as specified in the Materials Quality Assurance Procedures Manual.
 #** Review the cover over the top of the pipe as called for in the plans and verify against the pipe chart (Table 402-1 of the Standard Specifications for Construction) for acceptable pipe installation depth and class.
-#* Visually inspect the pipe for defects originating from the manufacturing process or occurring during delivery and unloading at the site per the criteria detailed in the [[4021_-_Storm_Sewers#MATERIALS|materials section]] for each type of storm sewer pipe. Any damaged pipe should be promptly rejected by the Engineer.
+#* Visually inspect the pipe for defects originating from the manufacturing process or occurring during delivery and unloading at the site per the criteria detailed in the [[402_-_Storm_Sewers#MATERIALS|materials section]] for each type of storm sewer pipe. Any damaged pipe should be promptly rejected by the Engineer.
 #** Inspect the bell and spigot end of the pipe to ensure there are no chips or cracks that might impede a watertight joint connection.
 #** Inspect plastic storm sewer pipe to ensure it does not exhibit deformities that would hinder water flow.

@@ Line 92: / Line 92: @@
 |}
-Any of these materials found with defects (cracks, fractures, exposed rebar, deformities, etc.) prior to or during installation are to be rejected and removed from the project site. Any damage caused by the Contractor’s operation to existing storm sewers that are intended to be salvaged must be removed and replaced with similar material without damage or defects at no cost to the contract.
+Any of these materials found with defects prior to or during installation are to be rejected and removed from the project site. Any damage caused by the Contractor’s operation to existing storm sewers that are intended to be salvaged must be removed and replaced with similar material without damage or defects at no cost to the contract.
 ==== Plastic Pipe (PPP, CPE, and CPV) ====
@@ Line 105: / Line 105: @@
 Concrete pipe is precast by a manufacturer and is made of cementitious materials, aggregates, and in most cases steel reinforcement.
-Concrete pipe and end sections must not be cracked or chipped, especially on the bells and spigots that are to make durable watertight joints. The concrete used must be free of segregation and honeycombing. If RCP is used, the internal reinforcement steel must not be visible on the exterior.
+===== Reinforced Concrete Pipe Rejection Criteria Per 909.04.A and AASHTO M170/M242 =====
 ==== Metal Pipe (CMP and CSP) ====
@@ Line 176: / Line 184: @@
 #** The pipe must be accompanied by the manufacturer’s certification, tested stock reports, or other requirements as specified in the Materials Quality Assurance Procedures Manual.
 #** Review the cover over the top of the pipe as called for in the plans and verify against the pipe chart (Table 402-1 of the Standard Specifications for Construction) for acceptable pipe installation depth and class.
-#* Visually inspect the pipe for defects originating from the manufacturing process or occurring during delivery and unloading at the site (such as cracks, fractures, exposed rebar, deformities etc.). Any damaged pipe should be promptly rejected by the Engineer.
+#* Visually inspect the pipe for defects originating from the manufacturing process or occurring during delivery and unloading at the site per the criteria detailed in the [[4021_-_Storm_Sewers#MATERIALS|materials section]] for each type of storm sewer pipe. Any damaged pipe should be promptly rejected by the Engineer.
 #** Inspect the bell and spigot end of the pipe to ensure there are no chips or cracks that might impede a watertight joint connection.
 #** Inspect plastic storm sewer pipe to ensure it does not exhibit deformities that would hinder water flow.

@@ Line 99: / Line 99: @@
 |+
 |-
-| [[File:401-006.jpg||300px|thumb|left|'''Polypropylene Storm Sewer Pipe ''']]
+| [[File:401-7.jpg|300px|thumb|left|'''Polypropylene Storm Sewer Pipe ''']]
 |}

@@ Line 99: / Line 99: @@
 |+
 |-
-| [[File:401-7.jpg||300px|thumb|left|'''Polypropylene Storm Sewer Pipe ''']]
+| [[File:401-006.jpg||300px|thumb|left|'''Polypropylene Storm Sewer Pipe ''']]
 |}
 ==== Concrete Pipe ====
 Concrete pipe is precast by a manufacturer and is made of cementitious materials, aggregates, and in most cases steel reinforcement.

@@ Line 114: / Line 114: @@
 |+
 |-
-| [[File:401-006.jpg||200px|thumb|center|'''Damaged Polymer-Coated CSP''']]
+| [[File:401-006.jpg|300px|thumb|left|'''Damaged Polymer-Coated CSP ''']]
 |}

@@ Line 116: / Line 116: @@
 | [[File:401-006.jpg||200px|thumb|center|'''Damaged Polymer-Coated CSP''']]
 |}
 ==== Bedding and Backfill ====

← Older revision		Revision as of 15:23, 14 May 2026
Line 111:		Line 111:
	Corrugated metal pipe should not be out-of-round, exhibit deviation from a straight alignment, or have dents or bends in the metal that can create loose, poorly formed joints. Bruised or broken zinc, aluminum, or polymer coating must be repaired by the Contractor in accordance with the manufacturer’s specifications at no cost to the contract.		Corrugated metal pipe should not be out-of-round, exhibit deviation from a straight alignment, or have dents or bends in the metal that can create loose, poorly formed joints. Bruised or broken zinc, aluminum, or polymer coating must be repaired by the Contractor in accordance with the manufacturer’s specifications at no cost to the contract.

		+	{\|
		+	\|+
		+	\|-
		+	\| [[File:401-006.jpg\|\|200px\|thumb\|center\|'''Damaged Polymer-Coated CSP''']]
		+	\|}


−	~~[[File:401-006.jpg\|300px\|thumb\|left\|'''Damaged Polymer-Coated CSP ''']]~~

← Older revision		Revision as of 15:21, 14 May 2026
Line 114:		Line 114:

	[[File:401-006.jpg\|300px\|thumb\|left\|'''Damaged Polymer-Coated CSP ''']]		[[File:401-006.jpg\|300px\|thumb\|left\|'''Damaged Polymer-Coated CSP ''']]
		+
		+
		+
		+
		+

	==== Bedding and Backfill ====		==== Bedding and Backfill ====