If the 309.2 acres and $4/sq yard figures are accurate, then it will cost $5,986,112.00The Dimensions:
From the Capitol steps to the Lincoln Memorial, the Mall runs 1.9 miles (3.0 km).
From the steps to the Washington Monument, the Mall spans 1.2 miles (1.8 km).
From Grant Statue to Lincoln Memorial, the Mall covers 309.2 acres (1,251,000 m²).
If the 309.2 acres and $4/sq yard figures are accurate, then it will cost $5,986,112.00