Sleeving Requirements for Gas Main Installations

Introduction to Sleeves

A sleeve is an encasement into which Nicor Gas inserts natural gas pipe.

Sleeves are installed at approximately the same time as the infrastructure of a development (i.e. sewer & water).

Sleeves should be installed prior to installing curbs and extend 3’ beyond the proposed curb-line on both sides of the road. (Exhibit “A”).

It shall be the obligation of the Developer to supply sleeving material, install the sleeves at all road crossings within their development and mark the ends of the sleeves in the field for ease in locating.

Installation of sleeves shall be in compliance with Nicor Gas’s specifications.

It is our policy that the size of the sleeve is determined by the size of the natural gas pipe (main) being installed. The sleeve is to be one size larger than the size of the gas pipe (main) being installed (i.e. if 2” main is being installed, then a 4” sleeve is required).

Size of Main	Size of Sleeve	Nicor Gas Spec. #
2”	4”	722.42
4”	6”	722.64
6”	10”	722.86

Jobs Requiring Sleeves

A gas main extension project will qualify for a sleeve or sleeves if the project has one or more street crossings within the development. This will exclude the tie-in point to an existing gas main on an existing road.

Procedure

Plat is received and reviewed by Nicor Gas New Business Coordinator

Contact will be made by the New Business Coordinator to meet or discuss the project with the Developer

Obtain a utility plan and final plat, if available, from the Developer

Discuss the Service Agreement packet, which includes the Timeline for Residential Gas Main Completion Sheet

The New Business Coordinator will obtain a copy of the work-order drawing (hardcopy or PDF) and provide the Developer with a copy.

The New Business Coordinator will review the proposed gas main extension with the Developer indicating the following:

Installation path of the gas main

Sleeve(s) placement and size of sleeve(s)

Concerns the Developer may have

When a work-order drawing is not available, the New Business Coordinator will mark-up an extra copy of the plat with the gas main and sleeve(s) placement, instructing the Developer to install the appropriate size sleeves on the side roads within the development and identify the sleeve size.

Prior to releasing the project for installation, the New Business Coordinator will confirm, via field verification or correspondence with the Developer, that the sleeves have been installed.

During installation of the gas main, if sleeve installation is not complete or there are issues with a sleeve, the New Business Coordinator will communicate to the Developer the concerns with the installation of the sleeves and any additional costs involved in the main installation as a result of missing or incorrectly installed sleeves.

Developer will be responsible for any additional costs associated with defective or missing sleeves.

Sleeving Requirements for Gas Main Installations

Introduction to Sleeves