Category:604 Miscellaneous Drainage

Concrete Headwalls, Drop Inlets And Manholes (Sec 604.10)

Construction Requirements (Sec 604.10.3)

The Standard Plans should be reviewed before inspection is performed. The details are important and the general notes provide valuable information about correct installation.

Adjusting Drainage Facilities (Sec 604.20)

Description (Sec 604.20.1)

The purpose of this item of work is to make existing drainage facilities match new construction. The plans will provide a guideline for the adjustments but the inspector should make any changes necessary for a quality finished product.

Adjusting House Sewer Connections (Sec 604.30)

Description (Sec 604.30.1)

This work shall consist of laying or relaying sanitary sewer house connections that are to be relocated or that are to be reconnected to new sewers or temporarily removed to permit the installation of other items in the contract.

Construction Requirements (Sec 604.30.3)

Where a house sewer connection is relocated or relaid above a water main, concrete is used to encase the sewer line a minimum thickness of 6 in. (150 mm). The purpose of that encasement is to prevent sanitary leaks from contaminating drinking water.

Pipe Collars (Sec 604.40)

Description (Sec 604.40.1)

The purpose of the pipe collar is to provide a watertight seal between the two ends of pipe and to assure that the ends don’t get displaced during backfill operations.

Connecting Pipe To Existing Structures (Sec 604.50)

Construction Requirements (Sec 604.50.2)

The Standard Plans should be reviewed before inspecting this work. The details are important and the general notes provide valuable information about correct installation.

Slotted Drains (Sec 604.60)

Description (Sec 604.60.1)

This work shall consist of furnishing and installing slotted drains in accordance the plans and standard drawings.