150 SECTION 240 CLEANING CULVERTS, INLETS AND MANHOLES
240.1 -DESCRIPTION : This work shall consist of complete removal of obstructions and thorough cleaning of trash, dirt and other debris from culverts, and their appurtenant structures; e.g., inlets, manholes, e tc.; when appropriate or so designated, in a manner determined by the Contractor and acceptable to the Engineer.
240.2 -MATERIALS : Not Specified.
240.3 -CONSTRUCTION METHODS : Methods employed and equipment utilized by the Contractor for cleaning culverts and their appurtenant structures; e.g., inlets, manholes, etc.; shall be acceptable to the Engineer . Cleaning procedures employed shall insure that the removal and disposal of obstructions, trash, and debris be accomplished such that the existing structure being cleaned is not damaged and deposition on, or damage to, adjacent and downstream property wi ll be avoided. Likewise, the cleaning methods shall minimize as much as practicable, pollution and sedimentation of receiving streams, rivers, or other bodies of water and clogging of, or damage to, downstream drainage structures.
240.4 -METHOD OF MEASUREMENT : “Cleaning Culverts ” will be measured by the linear foot of each size of culvert cleaned, the measurement being considered along the centerline of each culvert. The lengths f or branch connections, tees, wyes and elbows will be considered along their centerlines and those values included in the total lengths of the appropriate culvert. Measured values for culverts with sloped or skewed ends will be the length along the invert. The portion of culverts extending through to the inside face of headwalls, wingwalls, manholes, inlets, boxes or other structures shall be included in the measurement. “Cleaning Inlets ” and “Cleaning Manholes ” will be measured by the unit and will be the number of such structures that are actually cleaned.
240.5 -BASIS OF PAYMENT : The quantities, determined as provided above, will be paid for at the contract unit prices bid for the items below, which prices and payments shall be full compensation for doing the work prescribed in a workmanlike and acceptable manner, including all labor, tools, equipment, supplies and incidentals necessary to complete the work. Payment for any maintenance of traffic necessary in connection with the work shall be included in the appropriate 636 items of the specifications.
240.6 -PAY ITEMS : ITEM DESCRIPTION UNIT 240001 -* Clean Culvert Linear Foot 240002 -* Clean Inlet Each 240003 -* Clean Manhole Each
* Sequence number
BASES