The Table of Contents for this section is available.
The work covered by this section consists of the construction of gravity retaining walls constructed of concrete, brick masonry, or concrete block masonry, in accordance with the requirements shown on the plans and the provisions of these specifications.
All materials shall meet the requirements of Division 10 shown below:
Portland cement concrete Section 1000
Curing agents Section 1026
Joint fillers Article 1028-1
Joint sealers Article 1028-2
Brick Article 1040-1
Concrete block Article 1040-2
Mortar Article 1040-8
Truss type horizontal reinforcing Article 1070-7
Subdrain fine aggregate Article 1044-1
Stone, No. 78M Section 1005
842-3 CONSTRUCTION REQUIREMENTS.
Concrete shall be constructed in accordance with Section 825 and shall be given an ordinary surface finish except as otherwise provided herein. Class A concrete shall be used. Forms shall not be removed until at least 12 hours after the concrete has been placed.
Brick masonry shall be constructed in accordance with Section 830. Reinforced concrete block masonry shall be constructed in accordance with Section 834.
Backfilling of gravity retaining walls shall not be done until at least 7 curing days, as defined in Article 8259 for concrete or Article 8305 for brick or block masonry, have elapsed unless otherwise permitted by the Engineer.
Backfill shall be compacted to a degree satisfactory to the Engineer.
The quantity of concrete to be paid for will be the number of cubic yards of concrete, computed from the dimensions shown on the plans or established by the Engineer, which has been incorporated into the completed and accepted retaining walls.
The quantity of brick masonry to be paid for will be the number of cubic yards of brick masonry, computed from the dimensions shown on the plans or established by the Engineer, which has been incorporated into the completed and accepted retaining walls. Wherever a brick masonry retaining wall has a concrete footing, the quantity of concrete in the footing will be measured and included in the quantity of brick masonry and is to be paid for as brick masonry.
The quantity of concrete block masonry to be paid for will be the number of cubic yards of concrete block masonry, computed from the dimensions shown on the plans or established by the Engineer, which has been incorporated into the completed and accepted retaining walls.
The quantity of concrete, measured as provided in Article 8424, will be paid for at the contract unit price per cubic yard for "Concrete Retaining Walls."
The quantity of brick masonry, measured as provided in Article 8424, will be paid for at the contract unit price per cubic yard for "Brick Masonry Retaining Walls."
The quantity of concrete block masonry, measured as provided in Article 8424, will be paid for at the contract unit price per cubic yard for "Concrete Block Masonry Retaining Walls."
The above prices and payments will be full compensation for all work covered by this section including but not limited to excavation and backfilling, subsurface drainage, furnishing and placing concrete, brick masonry, concrete block masonry, mortar, reinforcing steel, and constructing joints.
Payment will be made under:
Concrete Retaining Walls Cubic Yard
Brick Masonry Retaining Walls Cubic Yard
Concrete Block Masonry Retaining Walls Cubic Yard