306 - Aggregate Surface Course - Revision history

Jhudson-fishbeck: /* Pictures of Equipment */

2025-10-13T18:47:28Z

Pictures of Equipment

Jhudson-fishbeck: /* Pictures of Materials */

2025-10-13T18:47:11Z

Pictures of Materials

Jhudson-fishbeck at 18:46, 13 October 2025

2025-10-13T18:46:49Z

Clarkj25 at 16:54, 13 October 2025

2025-10-13T16:54:34Z

Clarkj25 at 13:37, 21 August 2025

2025-08-21T13:37:28Z

Jhudson-fishbeck: /* Maintenance Gravel */

2025-08-19T16:29:51Z

Maintenance Gravel

Jhudson-fishbeck: /* Pictures of Equipment */

2025-08-19T16:25:56Z

Pictures of Equipment

Jhudson-fishbeck: /* Pictures of Materials */

2025-08-19T16:23:30Z

Pictures of Materials

Jhudson-fishbeck: /* Pictures of Equipment */

2025-08-19T16:22:42Z

Pictures of Equipment

Jhudson-fishbeck at 21:27, 30 June 2025

2025-06-30T21:27:46Z

@@ Line 83: / Line 83: @@
 |+
 |-
-| [[File:Smooth drum roller.jpg|400px|thumb|center|'''Smooth Drum Roller''']] || [[File:302-005.jpg|400px|thumb|center|'''Grader''']] || [[File:Laser transit.jpg|400px|thumb|center|'''Laser Transit''']]
+| [[File:Smooth drum roller.jpg|200px|thumb|center|'''Smooth Drum Roller''']] || [[File:302-005.jpg|200px|thumb|center|'''Grader''']] || [[File:Laser transit.jpg|200px|thumb|center|'''Laser Transit''']]
 |}

@@ Line 55: / Line 55: @@
 |+
 |-
-| [[File:305-002.jpg|400px|thumb|center|'''21AA Aggregate Pile (Limestone)''']] || [[File:208-2-2-3.jpg|400px|thumb|center|'''21AA Material''']]
+| [[File:305-002.jpg|200px|thumb|center|'''21AA Aggregate Pile (Limestone)''']] || [[File:208-2-2-3.jpg|200px|thumb|center|'''21AA Material''']]
 |-
-| [[File:306-001.jpg|400px|thumb|center|'''23A Aggregate Surface Course for a Roadway''']] || [[File:306-003.jpg|400px|thumb|center|'''Maintenance Gravel Placed for a Temporary Roadway''']]
+| [[File:306-001.jpg|200px|thumb|center|'''23A Aggregate Surface Course for a Roadway''']] || [[File:306-003.jpg|200px|thumb|center|'''Maintenance Gravel Placed for a Temporary Roadway''']]
 |}

@@ Line 127: / Line 127: @@
 |+
 |-
-| [[File:306-007.jpg|500px|thumb|center|'''Maintenance Gravel for Temporary Access Driveway''']] || [[File:307-008.jpg|500px|thumb|center|'''Ensure Contractor Removes Traffic Control Devices Once Maintenance Gravel for Temporary Access Driveway has been Placed''']]
+| [[File:306-007.jpg|200px|thumb|center|'''Maintenance Gravel for Temporary Access Driveway''']] || [[File:307-008.jpg|200px|thumb|center|'''Ensure Contractor Removes Traffic Control Devices Once Maintenance Gravel for Temporary Access Driveway has been Placed''']]
 |}

@@ Line 52: / Line 52: @@
 === Pictures of Materials ===
-<gallery>
+{|
--001.jpg|''23A Aggregate Surface Course for a Roadway''
+|+
--2-2-3.jpg|''21AA Material''
+|-
--003.jpg|''Maintenance Gravel Placed for a Temporary Roadway''
+| [[File:305-002.jpg|400px|thumb|center|'''21AA Aggregate Pile (Limestone)''']] || [[File:208-2-2-3.jpg|400px|thumb|center|'''21AA Material''']]
-</gallery>
+|-
 {{top}}
@@ Line 76: / Line 80: @@
 === Pictures of Equipment ===
-<gallery>
+{|
-Smooth drum roller.jpg|''Smooth Drum Roller''
+|+
--005.jpg|''Grader''
+|-
-Laser transit.jpg|''Laser Transit''
+| [[File:Smooth drum roller.jpg|400px|thumb|center|'''Smooth Drum Roller''']] || [[File:302-005.jpg|400px|thumb|center|'''Grader''']] || [[File:Laser transit.jpg|400px|thumb|center|'''Laser Transit''']]
-</gallery>
+|}
 {{top}}
@@ Line 119: / Line 124: @@
 === Maintenance Gravel ===
 Maintenance gravel is used to repair irregularities in an aggregate surface course and for temporary access through driveways and intersections. Maintenance gravel must provide a flush transition to the road surface with positive drainage for all driveways, intersecting streets, and adjacent surfaces where traffic is maintained. Existing widths of all driveways and intersections must be maintained unless otherwise noted on the plans. During maintenance of an aggregate surface course, the existing approach width needs to be maintained in a smooth stable condition. If small spot repairs are performed, an excavator might take material directly from a truck and be used to grade the repaired areas. A plate compactor would be used to compact small, shallow repair areas. Compaction should be performed to a minimum 95% of the maximum unit weight.  Maintenance gravel should be removed the same day the area is paved.
 {|
 |+
 |-
-| [[File:306-007.jpg|300px|left]] || [[File:307-008.jpg|300px|left]]
+| [[File:306-007.jpg|500px|thumb|center|'''Maintenance Gravel for Temporary Access Driveway''']] || [[File:307-008.jpg|500px|thumb|center|'''Ensure Contractor Removes Traffic Control Devices Once Maintenance Gravel for Temporary Access Driveway has been Placed''']]
 |}
 {{top}}

@@ Line 4: / Line 4: @@
 <center><span STYLE="font: 40pt arial;">'''Aggregate Surface Course'''</span></center>
 ==[[#GENERAL|GENERAL DESCRIPTION]]==
@@ Line 205: / Line 204: @@
 [[Category:Division 3]]
 [[Category:Section 306]]

← Older revision		Revision as of 16:29, 19 August 2025
Line 121:		Line 121:
	Maintenance gravel is used to repair irregularities in an aggregate surface course and for temporary access through driveways and intersections. Maintenance gravel must provide a flush transition to the road surface with positive drainage for all driveways, intersecting streets, and adjacent surfaces where traffic is maintained. Existing widths of all driveways and intersections must be maintained unless otherwise noted on the plans. During maintenance of an aggregate surface course, the existing approach width needs to be maintained in a smooth stable condition. If small spot repairs are performed, an excavator might take material directly from a truck and be used to grade the repaired areas. A plate compactor would be used to compact small, shallow repair areas. Compaction should be performed to a minimum 95% of the maximum unit weight. Maintenance gravel should be removed the same day the area is paved.		Maintenance gravel is used to repair irregularities in an aggregate surface course and for temporary access through driveways and intersections. Maintenance gravel must provide a flush transition to the road surface with positive drainage for all driveways, intersecting streets, and adjacent surfaces where traffic is maintained. Existing widths of all driveways and intersections must be maintained unless otherwise noted on the plans. During maintenance of an aggregate surface course, the existing approach width needs to be maintained in a smooth stable condition. If small spot repairs are performed, an excavator might take material directly from a truck and be used to grade the repaired areas. A plate compactor would be used to compact small, shallow repair areas. Compaction should be performed to a minimum 95% of the maximum unit weight. Maintenance gravel should be removed the same day the area is paved.

		+	{\|
		+	\|+
		+	\|-
		+	\| [[File:306-007.jpg\|300px\|left]] \|\| [[File:307-008.jpg\|300px\|left]]
		+	\|-
		+	\| ''Maintenance Gravel for Temporary Access Driveway'' \|\| ''Ensure Contractor Removes Traffic Control Devices Once Maintenance Gravel for Temporary Access Driveway has been Placed''
		+	\|}
	{{top}}		{{top}}

@@ Line 56: / Line 56: @@
 {{top}}
-===[[#Equipment|Equipment]]===
+==[[#EQUIPMENT|EQUIPMENT]]==
 The following list of equipment can be used for aggregate surface course and maintenance gravel work:
 * Bulldozer
@@ Line 142: / Line 142: @@
 ==[[#MEASUREMENT, DOCUMENTATION & PAYMENT|MEASUREMENT, DOCUMENTATION & PAYMENT]]==
 === Measurement and Payment ===
-Aggregate surface course and maintenance gravel can be paid by weight, area, volume, or per each area completed. Each load ticket must include the required information. Refer to Section 306.03.B of the Standard Specifications for Construction for information required on each ticket.
+Aggregate surface course and maintenance gravel can be paid by weight, area, volume, or per each area completed. Each load ticket must include the required information. Refer to [https://mdotwiki.state.mi.us/images_construction/9/95/2020-Standard-Specifications-Construction.pdf#page=198 Section 306.03.B of the Standard Specifications for Construction] for information required on each ticket.
 * By weight: The scale weight of the material will be paid for. If the moisture content exceeds 8%, reductions to the load ticket to remove the excess moisture will need to be made. Final measurement will be in tons.
@@ Line 151: / Line 151: @@
 ==== Weighing Materials ====
 Materials paid for by weight are required to be weighed on an approved scale system. There are permanent and portable scale systems.
-.1.1.1	Permanent Scale System
 A permanent scale system is defined as a weighing device that has not been moved from a given location within the last six months. Scale inspections will be conducted by a private scale agency or the Michigan Department of Agriculture. These inspections are valid for one year. The scale owner will provide the Engineer and regional materials personnel written verification that the scale system has been inspected according to specifications.
-.1.1.2	Portable Scale System
 For portable scales, the Contractor will obtain scale approval from a local official sealer of weights and measures, or the Engineer may give approval based on verifying the results of the portable scales by passing the loads over another scale that has an official seal.
-.1.1.3	Platform Scales
 If the platform scales (permanent or portable) are observed in operation, the following are important:
 * The scales are operating freely.
@@ Line 161: / Line 164: @@
 * The approaches are in relatively good condition.
 Platform scales need to be balanced at zero and should be periodically checked throughout the day. The Engineer will require a coupled vehicle to be reweighed with each unit being uncoupled at least monthly during its use on the project. The total weight of the uncoupled units must agree with the total weight of the coupled units within ±0.2%.
-.1.1.4	Tare Weights
 Tare weights should be recorded at least twice a day: once in the morning and once in the afternoon. It is good practice to ensure the hauling units are reasonably clean when performing this operation. Aggregates are weighed to the nearest 100 pounds.
-.2	Documentation
 The Daily Work Report (DWR) should show all computations, measurements, and supporting documentation needed to verify the quantity submitted for payment. Primary supporting documentation includes moisture and grade checks.
-Form 1900, Aggregate Inspection Daily Report, will need to be completed for every sublot of aggregate to track gradation acceptance.
+[https://mdotjboss.state.mi.us/webforms/GetDocument.htm?fileName=1900.pdf Form 1900, Aggregate Inspection Daily Report], will need to be completed for every sublot of aggregate to track gradation acceptance.
-Form 0582B, Moisture & Density Determination - Nuclear Method, is used to record density testing results.
+[https://mdotjboss.state.mi.us/webforms/GetDocument.htm?fileName=0582B.pdf Form 0582B, Moisture & Density Determination - Nuclear Method], is used to record density testing results.
-{{top}
+==[[#RAIL PROJECTS|RAIL PROJECTS]]==