SITE L5A IS LOCATED ON THE SOUTH LEVEE OF THE AMERICAN RIVER AT THE CITY OF SACRAMENTO STORM DRAINAGE SUMP NO. 10, APPROXIMATELY 0.7 MILES EAST OF THE BUSINESS I-80 OVERCROSSING IN SACRAMENTO, CALIFORNIA. THERE IS AN EXISTING CUTOFF WALL IN THE LEVEE THAT APPROACHES THE FOUR 24-INCH DIAMETER DISCHARGE PIPES CROSSING THROUGH THE LEVEE AT THIS LOCATION. THE GAP IN THE EXISTING CUTOFF WALL IS ABOUT 40-FEET NEAR THE LEVEE CROWN, AND THEN TAPERS DOWN TO WHERE THE CUTOFF WALL IS CONTINUOUS UNDERNEATH THE PIPES. THIS CONTRACT INCLUDES CUTTING AND REMOVING ALL FOUR PIPES, AND INSTALLING A CONTROLLED LOW STRENGTH MATERIAL (CLSM) CUTOFF WALL TO FILL IN THIS GAP. THE FOUR DISCHARGE PIPES WILL BE RECONSTRUCTED OVER THE TOP OF THE NEW CUTOFF WALL, AND THE LEVEE RECONSTRUCTED BACK TO ITS ORIGINAL CONDITION.