Use Concrete Channel Block where Horizontal Steel is called for.

Concrete shall be 1:2½:3 ½ Machine mix with maximum of 7 ½ Gallons water per Sack of cement.

Reinforcing steel shall be structural grade fs = 20,000 P.S.I.

Reinforcing Steel Bars shall lap 54 Bar diameters.

All cells in which steel is placed shall be filled with grout.

Mortar shall be 1-part Cement, 3 1/2 parts Sand (1/4 part Lime optional).

Pour footing and piers against undisturbed natural soil or soil that has been compacted to 90% Optimum Density per A.A.S.H.O. T99-49

Piers shall be located at maximum intervals of 10 feet center to center or as called for on plan.

The Contractor shall obtain a permit from the local Building and Safety Office prior to construction after the steel is in place and 24 hours prior to pouring concrete for the footing: The Contractor shall call the local Building and Safety Office for inspection; prior to grouting the wall cells, The Contractor shall again call the local Building and Safety Office for inspection. Final Inspection shall be called for upon completion of the wall.

Any height of block wall over 6 feet shall require structural calculations.