00495.40 409 Section 00495 - Trench Resurfacing Description
00495.00 Scope - This Work consists of resurfacing pipe trenches, including replacement of
Pavement , curbs, sidewalks, Rock Surfacing , Topsoil , landscaping and other features removed or damaged during pipe trenching operations. Materials
00495.10 Materials - Furnish trench resurfacing Material s that either match existing material
removed from pipe trenches, or new Material s meeting the following requirements: Aggregate ................................................................................................... 00641 Asphalt Concrete Pavement (ACP) .......................................... 00744 and 00745 Concrete Paving ......................................................................................... 00756 Concrete Sidewalks, Curbs, and Driveway ................................................ 00759 Emulsified Asphalt Concrete (EAC) ............................................................ 00735 Emulsified Asphalt Prime Coat ................................................................... 00705 Emulsified Asphalt Surfacing ...................................................................... 00710 Emulsified Asphalt Tack Coat .................................................................... 00730 Rock Surfacing ........................................................................................... 00641 Seeding ...................................................................................................... 01030 Topsoil, and Planting .................................................................................. 01040 Furnish Sand used for edge sealing that is clean Sand with no visible sign of Silts or organic materials. Construction
00495.40 General - The following construction requirements are for resurfacing trenches in various
locations. Refer to Secti on 00405 for trench S urface Removal requirements.
a.Asphalt Concrete Paving - Place ACP according to Sections 00744 and 00745, as applicable.
b.Emulsified Asphalt Concrete Paving - When temporary Surfacing is required prior to placing permanent Surfacing , place EAC paving a minimum of 1 inch thick. The temporary paving shall be smooth with surface variations not greater than 1/2 inch from the Existing Surfacing. Where the temporary patch adjoins existing surfaces the joint shall not be greater than 1/4 inch high. Maintain the temporary Surfacing until the permanent Surfacing is placed. ACP mix may be used if approved.
c.Emulsified Asphalt Prime Coat - Construct Emulsified Asphalt prime coat according to Section 00705.
d.Emulsified Asphalt Surfacing - Construct Emulsified Asphalt Surfacing treatment according to Section 00710.
e.Edge Sealing Tack Coat Application - Seal all adjoining asphalt concrete Pavement surfaces with an edge sealing tack coat. Place sufficient tack coat to seal the adjoining surfaces. After the tack coat has been placed, place clean Sand over the tack coat. Reapply additional tack coat and Sand cover to any edges that are not completely sealed in th e first application.
f.Aggregate Base - Place Aggregate Base according to Section 00641. 00495.80 410 (g) Concrete Sidewalk, Curb and Driveway - Construct concrete sidewalk, curbs and driveways according to Section 00759.
h.Concrete Paving - Construct concret e paving according to Section 00756.
i.Rock Surfacing - Construct Rock Surfacing according to Section 00641.
j.Topsoil - Place Topsoil according to Sections 00405 and 01040.
k.Landscaping - Place landscaping according to Section 01040. Measurement
00495.80 Measurement - The quantities of trench resurfacing will be measured on the area basis.
The length will be measured horizontally along the centerline of the installed pipe from edge to edge of the surface replaced. The width will be the nominal inside diameter of the pipe plus: 20 inches for pipes less than 12 inches in diameter 24 inches for pipes 12 inches and 15 inches in diameter • 32 inches for pipes 18 inches and 21 inches in diameter • 36 inches for pipes 24 inches and 30 inches in diameter • 48 inches for pipes between 36 inches and 72 inches, inclusive When the pipe is installed under Pavement by tunneling, boring, or jacking methods, the Work will b e measured according to 00406.80. Payment
00495.90 Payment - The accepted quantities of trench resurfacing will be paid at the Contract unit
price, per square yard, for the item "Trench Resurfacing". Payment will be payment in full for furnishing and placing all Material s, and for furnishing al l Equipment , labor, and Incidental s necessary to complete the Work as specified. When the pipe is installed under Pavement by tunneling, jacking, or boring methods, the Work will be paid for according to 00406.90. When the Contract Schedule of Items does not indicate payment for trench resurfacing or other Work under this Section, no separate or additional payment will be made. Payment will be included in payment made for the appropriate items under which this Work is required.
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Source: Oregon Standard Specifications for Construction, 2024 Edition. Pages 475–476 of 1,268. View official source ↗