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I I I I I I I I I I I I I I I I I I I 15. TRENCH COMPACTION REOUIREO IN ROADWAYS 4ND STRUCTURAL AREAS Fill in housepads must be tested at two foot intervals in accordance with FHA 79-G Earthwork Requirements. The Contractor shall be repsonsible for notifying the Testing Company to verify house pad soils prior to filling. All embankment in roadways and structural areas shall require compacting (MnDOT 21.05.3F1) with a vibratory roller or other mechanical means to achiev~ 95% of maximum density as determined by the standard proctor test (ASTM D 698-78). The upper three (3) feet within the street right-of-way shall be compacted to 100% of maximum density as determined by the standard proctor test. The tests shall be run by an accredited testing laboratory at the locations designated by the Engineer and paid for by the Owner. All areas not meeting these specifications shall be recompacted by the Contractor at no expense to the Owner. The contractor shall bear all costs of retesting. 16. GRANULAR FOUNDATION MATERIAL (Binder Stone) An item has been included in the proposal for granular foundation materials which is for foundation correction and pipe bedding, for use only if so ordered by the Engineer. It will not be paid for use in dewatering the trenches or hydrant installations. These uses shall be at the Contractor's expense and included in the cost of the particular items. The material shall be used for pipe bedding as directed by the Engineer. Payment shall be for tons placed. The unit price bid for granular foundation material shall include the cost of all excavation and compacting required to place the material and also the cost to dispose of any undesirable material removed. 17. FINAL ADJUST~D GRADES sanitary Sewer and storm Sewer Castings, catch Basins, Water Valves - castings shall conform to the details and as shown on the plans. During the period between manhole and valve placement and paving, manhole and catch basin castings will be protected by leaving them low or by using heavy steel plates as temporary covers in place of the castings to protect and waterproof the structure (See Erosion Control specification). sanitary Sewer - All sanitary sewer manhole castings shall be left in place during the paving operation. The castings shall be adjusted before the mat is laid and shall be left 1/2 inch below finished grade. 0910-5