2010-238 - Laserfiche WebLink

Home Browse Search

side ditches . The Engineer will determine the limits adjacent to channels within which such materials may be disposed . 120 -4 . 3 Disposal of Paving Materials : Unless otherwise noted , take ownership of paving materials , such as paving brick , asphalt block , concrete slab , sidewalk , curb and gutter , etc . , excavated in the removal of existing pavements , and dispose of them outside the right-of-way . If the materials are to remain the property of the Agency , place them in neat piles as directed . Existing limerock base that is removed may be incorporated in the stabilized portion of the subgrade . If the construction sequence will allow , incorporate all existing limerock base into the project as allowed by the Contract Documents , 120 -4 . 4 Disposal Areas : Where the Contract Documents require disposal of excavated materials outside the right-of-way , and the disposal area is not indicated in the Contract Documents , furnish the disposal area without additional compensation . Provide areas for disposal of removed paving materials out of sight of the project and at least 300 feet from the nearest roadway right-of-way line of any road . If the materials are buried , disregard the 300 foot limitation . 120- 5 Materials for Embankment. 120 -5 . 1 General Requirements for Embankment Materials : Construct embankments using suitable materials excavated from the roadway or delivered to the jobsite from authorized borrow pits . Construct the embankment using maximum particle sizes ( in any dimension ) as follows : In top 12 inches : 3 1 /2 inches ( in any dimension ) . 12 to 24 inches : 6 inches ( in any dimension ) . In the depth below 24 inches : not to exceed 12 inches ( in any dimension ) or the compacted thickness of the layer being placed , whichever is less . Spread all material so that the larger particles are separated from each other to minimize voids between them during compaction . Compact around these rocks in accordance with 120 - 7 . 2 . When and where approved by the Engineer , larger rocks ( not to exceed 18 inches in any dimension ) may be placed outside the one to two slope and at least 4 feet or more below the bottom of the base . Compact around these rocks to a firmness equal to that of the supporting soil . Where constructing embankments adjacent to bridge end bents or abutments , do not place rock larger than 3 1 /2 inches in diameter within 3 feet of the location of any end - bent piling . 120 -5 . 2 Use of Materials Excavated From the Roadway and Appurtenances : Assume responsibility for determining the suitability of excavated material for use on the project in accordance with the applicable Contract Documents . Consider the sequence of work and maintenance of traffic phasing in the determination of the availability of this material . 120 -5 . 3 Authorization for Use of Borrow : Use borrow only when sufficient quantities of suitable material are not available from roadway and drainage excavation , to properly construct the embankment , subgrade , and shoulders , and to complete the backfilling of structures and pipe . Do not use borrow material until so ordered by the Engineer , and then only use material from approved borrow pits . 120 -5 . 3 . 1 Haul Routes for Borrow Pits : Provide and maintain , at no expense to the Agency , all necessary roads for hauling the borrow material . Where borrow area haul roads or trails are used by others , do not cause such roads or trails to deteriorate in condition . 23 Technical Specifications F :\Public Works\ENGINEERING DIVISION PROJECTS\0744-8th St-US1 to 6th Ave\Admim\bid documents\0744 CONTRACT DOCUMENTS\Technical Specifications .doc