This curb shall be constructed and paid for as provided for "Concrete Curb" Item 43. Steel protection will consist of a plate 3/8" x 4" with upper outside corner rounded to a 3/8" radius, with anchors 1/4" x 2" in section, spaced not over three (3) feet apart, fastened to plates by counter sunk rivets and extending into curb not less than six (6) inches. Anchors shall be spaced so that end ones are not over four (4) inches from end of plates, and the shape of the anchors must be satisfactory to the Engineer. The price bid per lineal foot shall include furnishing and placing the steel protection.