Art. 551.01 Storm Sewer Removal and Installation SECTION 551. STORM SEWER REMOVAL AND INSTALLATION
551.01 Description. This work shall consist of the removal and/or installation
of storm sewers, including laterals.
551.02 Materials. New materials shall be according to Articles 550.02 and
550.03. CONSTRUCTION REQUIREMENTS
551.03 Removal. Existing storm sewers shall be removed so that all pipe
considered suitable by the Engineer for future use shall be salvaged. The location and manner of storage of salvaged material shall be as directed by the Engineer. Any of the material having salvage value which has been damaged by the Contractor shall be replaced with new pipe of the same kind and size. Material not suitable for salvage shall be disposed according to Article 202.03. Excavation of trenches shall be performed according to the applicable requirements of Article 550.04. Backfill of trenches shall be performed according to the applicable requirements of Article 550.07.
551.04 Installation. Suitable pipe salvaged from storm sewer removal shall
be used when available. When salvaged pipe is available for use, any new material required shall be of the same kind as the salvaged pipe. Storm sewer installation shall be performed according to the applicable requirements of Section 550.
551.05 Method of Measurement. This work will be measured for payment
according to Article 550.09. Excavation in rock will be measured for payment according to Article 502.12. Trench backfill for storm sewer removal will be measured for payment according to Article 208.03, except an addition will be made for one-half of the volume of the pipe removed. Trench backfill for storm sewer installation will be measured for payment according to Article 208.03.
551.06 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for STORM SEWER REMOVAL and/or STORM SEWER INSTALLATION, of the diameter specified. The furnishing of new pipe, except for replacement of pipe damaged by the Contractor, will be paid for according to Article 109.04. Excavation in rock will be paid for according to Article 502.13. Storm Sewers Jacked in Place Art. 552.04 Trench backfill will be paid for according to Article 208.04. Removal and replacement of unsuitable material below plan bedding grade will be paid for according to Article 109.04. SECTION 552. STORM SEWERS JACKED IN PLACE
552.01 Description. This work shall consist of installing, by jacking, storm
sewers of the required inside diameter at locations shown on the plans.
552.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe (Note 1) .... 1042
b.Reinforced Concrete Elliptical Culvert, Storm Drain, and Sewer Pipe (Note 1) ............................................................................... 1042
c.Grout (Note 2) .................................................................................... 1024.01
d.Steel Casing .................................................................................. 1006.05(d)
e.Reinforcement Bars and Welded Wire Reinforcement ...................... 1006.10
f.Mastic Joint Sealer for Pipe .................................................................... 1055 Note 1. Tongue and groove type joint. Not less than a Class IV Pipe. Note 2. The grout mixture shall be one part cement and two parts sand mixed with water.
552.03 Traffic Control. The road shall be kept open to traffic according to
Article 701 — 17(d)(3).
CONSTRUCTION REQUIREMENTS
552.04 General. Storm sewers shall be jacked in a continuous operation.
The construction may be accomplished by jacking the storm sewer, or if the Contractor elects, a metal casing of sufficient strength and size first, then the storm sewer installed inside the casing. If the casing is used, it shall remain in place to support the embankment, and the voids between the liner and the sewer pipe shall be completely filled with sand or grout mixture as approved by the Engineer. The diameter of the metal casing, if used, shall not exceed the outside diameter of the storm sewer by more than 6 in. (150 mm). The Contractor may shorten the length of storm sewer to be jacked by open cutting and sheeting, shoring or bracing the excavation outside the roadway limits. No open cutting shall be permitted inside the shoulder lines. If continuous jacking operation cannot be maintained, the Contractor shall take the necessary precautions to not allow the jacked pipe to become fixed in place. The Contractor shall provide details of the anticipated installation method and equipment. Installation details shall be provided for each location shown in the plans and include (1) the method proposed and a step-by-step installation sequence,
2.drive and receiving pit details including location, size, shoring, and thrust wall
Referenced in this section
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 513–514 of 1,217. View official source ↗