307 - Aggregate Shoulders and Approaches - Revision history

Clarkj25: /* Aggregate Shoulders */

2025-10-13T17:44:46Z

Aggregate Shoulders

Clarkj25: /* Pictures of Equipment */

2025-10-13T17:43:33Z

Pictures of Equipment

Clarkj25: /* Pictures of Equipment */

2025-10-13T17:43:15Z

Pictures of Equipment

Clarkj25: /* Pictures of Equipment */

2025-10-13T17:41:40Z

Pictures of Equipment

Clarkj25: /* Description of Equipment */

2025-10-13T16:56:24Z

Description of Equipment

Clarkj25 at 18:16, 8 October 2025

2025-10-08T18:16:44Z

Show changes

SchaeferS: /* MEASUREMENT AND PAYMENT */ Clarified spec book as "Standard Specifications for Construction."

2022-07-21T15:16:48Z

MEASUREMENT AND PAYMENT: Clarified spec book as "Standard Specifications for Construction."

SchaeferS: /* MEASUREMENT AND PAYMENT */

2022-07-20T20:52:44Z

MEASUREMENT AND PAYMENT

SchaeferS: /* MEASUREMENT AND PAYMENT */ Updated Measurement and Payment information section

2022-07-20T20:52:28Z

MEASUREMENT AND PAYMENT: Updated Measurement and Payment information section

SchaeferS: /* MEASUREMENT AND PAYMENT */ updated/correct link for 109.01 and 307.03 referencing 2020 spec book

2022-02-16T18:29:55Z

MEASUREMENT AND PAYMENT: updated/correct link for 109.01 and 307.03 referencing 2020 spec book

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 For a hot mix asphalt (HMA) overlay project, aggregate shoulders should be installed flush with the new HMA pavement. If less than 3 inches of material is being placed, the existing aggregate shoulder must be scarified to a minimum depth of 2 inches prior to placement of new material. The compacted aggregate should be maintained flush with the existing pavement surface.
-[[File:307-009.jpg|300px]]
+{|
+|+
-''Shoulder Widener Placing Aggregate Material along Shoulder Edge''
+|-
 === Aggregate Approaches ===

← Older revision		Revision as of 17:43, 13 October 2025
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−	~~<gallery>~~
−	~~302-005.jpg\|Grader~~
−	~~Backhoe-2.jpg\|Backhoe~~
−	~~208-E017.jpg\|Skid Steer~~
−	~~Laser transit.jpg\|Laser Transit~~
−	~~307-002.jpg\|Road Widener~~
−	~~</gallery>~~
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 |-
 | [[File:302-005.jpg|300px|thumb|center|'''Grader''']] || [[File:Backhoe-2.jpg|300px|thumb|center|'''Backhoe''']] || [[File:208-E017.jpg|300px|thumb|center|'''Skid Steer''']]
 |}

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 === Pictures of Equipment ===
 <gallery>
 -005.jpg|Grader

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 # A truck, such as a flowboy or spreader, is used to place the aggregate on the shoulder. Following behind the trucks is a grader, which shapes the aggregate shoulder to the desired dimensions. A vibratory roller compacts the aggregate once it is graded out.
-[[File:307-003.jpg|300px]]
+{|
 ==== Aggregate Approaches ====
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 ==== Trenching ====
 A cold mill machine can be used to remove the existing surface to the plan dimensions. The milling is loaded directly into a truck and removed from the site. If required, an excavator with a ditching bucket or grader with a shoe follows the mill to clean up the trench. At times, a grader with a shoe fully trenches the shoulder. Depending on the width of the trench, either a vibratory roller or plate compactor compacts the existing grade.
 === Pictures of Equipment ===

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 Where trenching is required on both sides of the road, each side will be measured separately along the road centerline.
-When shoulders or approaches are measured by the ton (metric ton), the pay weight will be the scale weight unless the moisture content is more than the maximum allowable percentage as stated in the MDOT Standard Specifications for Construction. If the moisture exceeds the maximum allowable percentage, then the excess weight will be deducted from the pay weight. The determination of moisture and pay weights will be as specified in [https://www.michigan.gov/-/media/Project/Websites/MDOT/Field-Services/FieldServices4/2020-Standard-Specifications-Construction.pdf?rev=df6ed714e5bb43b6814fb252b1ed2561#page=108 Section 109.01] and [https://www.michigan.gov/-/media/Project/Websites/MDOT/Field-Services/FieldServices4/2020-Standard-Specifications-Construction.pdf?rev=df6ed714e5bb43b6814fb252b1ed2561#page=208 Section 4] of the MDOT Standard Specifications for Construction.
+When shoulders or approaches are measured by the ton (metric ton), the pay weight will be the scale weight unless the moisture content is more than the maximum allowable percentage as stated in the Standard Specifications for Construction. If the moisture exceeds the maximum allowable percentage, then the excess weight will be deducted from the pay weight. The determination of moisture and pay weights will be as specified in [https://www.michigan.gov/-/media/Project/Websites/MDOT/Field-Services/FieldServices4/2020-Standard-Specifications-Construction.pdf?rev=df6ed714e5bb43b6814fb252b1ed2561#page=108 Section 109.01] and [https://www.michigan.gov/-/media/Project/Websites/MDOT/Field-Services/FieldServices4/2020-Standard-Specifications-Construction.pdf?rev=df6ed714e5bb43b6814fb252b1ed2561#page=208 Section 4] of the Standard Specifications for Construction.
 When payment is by the cubic yards (cubic meters), loose measure, hauling units must be measured, inspected and counted by the Engineer.

← Older revision		Revision as of 20:52, 20 July 2022
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	When payment is by the cubic yards (cubic meters), loose measure, hauling units must be measured, inspected and counted by the Engineer.		When payment is by the cubic yards (cubic meters), loose measure, hauling units must be measured, inspected and counted by the Engineer.
−

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