KOKOSING ALBERICI TRAYLOR, LLC

A00033 NPP DOOR SILL. THE DOOR SILL TO THE NPP PLANT WAS FOUND TO HAVE DETERIORATED SILL WHERE IT MET WITH THE NEW BRIDGE. THIS FIXES THAT SILL.

A00032 SHAFT 6 FLOOR OPENINGS. THE FLOOR OF THE SHAFT 6 BUILDING DOES NOT HAVE CONDUIT OPENINGS IN IT TO PROVIDE FOR CONDUCTOR TO DESCEND VERTICALLY TO THE FLOOR OF SHAFT 6. THIS CORRECTS THIS ISSUE.

P00020 STEAL ANGLE AT MONOLITH JOINTS. THE JOINTS OF THE MONOLITH WERE ORIGINALLY PLANNED TO HAVE STAINLESS STEEL ANGLES TO ADDRESS ALKALI SILICA REACTIVITY SPALLING THAT DOES NOT EXIST HERE SO REMOVED.

A00031 SA HYDRAULIC BRAKING IMPROVEMENTS. IMPROVES THE BRAKING CAPACITY OF THE LOCK SHIP ARRESTORS AFTER DESIGN EXPERIENCE SHOWS ISSUES.

A00030 NWP PIPE SLEEVE CHAMFER. THE CHAMFER OF THE INLET PIPES NEEDED TO BE ADJUSTED FOR HYDRAULIC EFFICIENCY.

NEW LOCK AT THE SOO - CH0039 AGREEMENT FOR ADDITIONAL EFFORT NECESSARY FOR DPW HTRW AND UNKNOWN PIPING.

A00029 DEWATERING TUNNEL WATERSTOP. UPON REVIEW OF THE PLANS DURING CONSTRUCTION, IT WAS REALIZED THAT THERE WAS NO WATERSTOP, POTENTIALLY CAUSING EROSION ISSUES IN THE BASE.

THIS ACTION EXERCISES OPTION 4 - DOWNSTREAM WORK, OPTION 5 - HANDSFREE MOORING, AND OPTION 6 - DOWNSTREAM SHIP ARRESTORS ON THE NEW LOCK AT THE SOO CONTRACT.

A00028 COAL BUNKER HTRW ABATEMENT. DURING THE COURSE OF THE WORK, IT WAS DISCOVERED THAT THE OLD COAL BUNKER WAS WITHIN THE AREA OF THE LOCK MONOLITH THAT WOULD BE COVERED WITH CONCRETE.

A00027 PH DISCHARGE DEWATERING TESTING. THIS MOD PROVIDES FOR TESTING EQUIPMENT AND MATERIAL TO TEST DISCHARGE WATER TO ENSURE THE PROJECT DOES NOT EXCEED NPDES DISCHARGE LIMITATIONS FOR PH.

A00026 MITER GATE WALKWAY. A WALKWAY WAS MISSED ALONG THE TOP OF THE MITER GATES. THIS CHANGES THAT TO INCLUDE A WALKWAY.

A00025 SUBSTATION A LOW VOLTAGE CIRCUIT. CIRCUIT DISCONNECT SWITCH WAS MISSED IN THE DESIGN. THIS MODIFICATION ACCOUNTS FOR INCLUDING IT.

A00024 ELECTRICAL DISTRIBUTION FEEDER RELOCATION CLARIFICATIONS. CONTRACTOR AND USACE MET TO REVIEW EXPECTATIONS AND SOME CHANGES HAD TO BE ADDRESSED. THIS MOD ADDRESSES THOSE CHANGES.

P00017 BUS DIFFERENTIAL RELAY FOR SWITCHGEAR. MODIFICATION PROMOTES DESIGN CHANGES RELATED TO PROVIDE PROTECTION TO THE SWITCHGEAR FOR THE BASE, OPTION 2 AND OPTION 3 OF THE CONTRACT.

A00022 DST ASBESTOS DIVIDERS. THE DEEP SERVICE TUNNEL HAS ASBESTOS DIVIDERS SEPARATING THE CONDUCTORS. THESE NEED TO BE REMOVED SO AS TO LIMIT ASBESTOS EXPOSURE TO WORKERS IN THE TUNNEL.

A00021 SPRING NEST HOUSING. WORK ON THE ARM IS ONGOING AND A CHANGE WAS NEEDED TO ENSURE THE ARM WILL WORK CORRECTLY WHEN BUILT.

P00016 UNSUITABLE SOILS DOWNSTREAM DISPOSAL. DURING EXCAVATION DOWNSTREAM NOSE PIER SOILS WITH WOOD PRESERVATIVE WAS DISCOVERED. THESE SOILS HAD TO BE DISPOSED OF IN A LAND FILL.

A0020 TEMPORARY CWS INTAKE LOCATION. DUE TO THE HIGH PH DISCHARGE FROM DEWATERING, THE CWS INTAKE MUST BE MOVED SO THE INTAKE WATER DOES NOT DAMAGE COOLING EQUIPMENT FROM THE HIGH PH.

A00019 CROSSOVER TUNNEL HAZARDOUS WATER. WATER IN THE CROSSOVER TUNNEL UNDER THE LOCK WAS CONTAMINATED WITH LEAD AND HAD TO BE PUMPED OUT AND DISPOSED OF IN THE SAULT STE. MARIE MI WASTE WATER TREATMENT PLANT.

A00018 SHIP ARRESTOR MATERIALS. THE MATERIALS FOR THE SHIP ARRESTORS NEED TO CHANGED TO A DIFFERENT TYPE OF METAL.

A00017 TEMPORARY DEWATERING POWER. ADJUSTS THE LOAD CENTER FOR THE TEMPORARY DEWATERING PUMPS.

NEW LOCK AT THE SOO - CH0021 NEW PUMP WELL DESIGN AND CONSTRUCTION CHANGES TO CORRECT WATER FLOW.

A00016 SOLUTIONS FOR DISCHARGE OF HIGH PH WATER. DETERMINES 3 SOLUTIONS TO REMEDY HIGH PH WATER THAT IS DISCHARGED FROM THE NEW LOCK DEWATERING.

A00015 TESTING OF DISCHARGE WATER. WATER OUTLET FROM THE DEWATERED AREA WAS DISCOVERED TO BE A HIGH PH. THIS CREATED A CONCERN THAT THERE COULD BE HAZARDOUS MATERIAL IN THE DISCHARGE, SO IT WAS TESTED.

A00014 WEEP HOLES ON UPSTREAM CELLS 1 AND 2A. THE UPSTREAM COFFERCELLS ARE CONTAINING WATER. THESE WEEP HOLES SHOULD DRAIN THE CELLS TO EQUALIZE HYDROSTATIC PRESSURE.

A00013 MITER GATE LATCH DELETION. THE GATES USED ON THE NEW LOCK NEED TO MATCH THAT ON THE NEW POE LOCK GATES. THESE GATES DO NOT HAVE THIS LATCH IN THE REDESIGN. SO REMOVING IT FROM THE NEW LOCK PROJECT.

A00012 TEMPORARY DEWATERING CONDUIT. INSTALL PVC CONDUIT TO ATTACH TO CONDUIT IN THE AREA IN ORDER TO FACILITATE DRAINAGE IN THE EMBANKMENT NEAR UNIT 10.

THIS OPTION EXERCISES THE WORK ASSOCIATED WITH THE CHAMBER LOCK OPERATIONAL LINE ITEM. WORK INCLUDES REMOVING THE COFFERDAM CELLS AFTER GATE INSTALLATION AND THE FLOORING TO THE LOCK.

A00011 DAVIS DEBRIS PIT WATER. THE DAVIS DEBRIS PIT WAS FILLED WITH WATER THAT WAS DETERMINED TO HAVE HIGH CONCENTRATIONS OF LEAD IN IT. THIS MOD REMOVES THE WATER AND TRANSPORTS TO A WASTE WATER PLANT.

NEW LOCK AT THE SOO - MODIFICATION TO PURCHASE FEEDER CABLES & SPLICE KITS IN ADVANCE OF THE PLANNED ELECTRICAL OUTAGE TO ENSURE EVEN IF THE SPLICE FAILS ELECTRICITY TO THE LOCAL AREA CAN BE CORRECTED TIMELY.

P00010 DAVIS RECESS FILL. DURING THE COURSE OF THE PROJECT, IT WAS DISCOVERED THAT THERE WERE A NUMBER OF RECESSES THAT WERE MISSED IN THE ORIGINAL CALCULATION OF QUANTITIES. THIS INCREASES QUANTITIES OF FILL.

A00010 UNIT 10 DRAIN PIPE RELOCATION. A DRAINAGE PIPE WAS NOT SHOWN ON THE DRAWINGS BUT WAS SHOWN ON THE HISTORICAL DRAWINGS. THIS MOD REPLACES THE OLD PIPE WITH NEW.

P00009 CELL 6B CONCRETE FILL. CHANGES CELL 6B TO CONCRETE FROM SAND AS SPECIFIED IN A PRE-BID ENQUIRY.

A00009 CENTER DIKE GRADING AT UNIT 10. UNIT 10 WAS NOT SET FOR DRAINAGE CORRECTLY IN THE PLANS AND DID NOT SLOPE MATERIAL AROUND THE UNIT 10 POWER PLANT CORRECTLY.

A00008 NPP BRIDGE REBAR AND SCUPPERS. BRIDGE DECK DOES NOT HAVE ENOUGH SCUPPERS TO ADDRESS DRAINAGE. ADDITIONALLY, THE DECK WAS NOT LEVEL FOR DRAINAGE. THIS MOD ADDS SCUPPERS, REBAR, AND ADJUSTS DECK SLOPE.

A00007 OLD NPP BRIDGE REPAIR/STABILIZATION. THE OLD NPP BRIDGE IS IN POOR CONDITION AND THERE IS A CONCERN THAT IT WILL NOT LAST UNTIL THE REPLACEMENT STRUCTURE IS READY. THIS MOD PERFORMS SOME WORK TO REACH THAT GOAL.

P00008 ROCK EXCAVATION QUANTITY SHAFT 6 AND CONNECTION TUNNEL. PLANS HAD AN ERROR IN THE CALCULATION OF QUANTITY FOR EXCAVATION. THIS MOD CORRECTS FOR THAT CORRECT QUANTITY.

A00005 CH0009 NPP BRIDGE ALIGNMENT AND CH00010 CWS MAINTENANCE PUMP. BRIDGE WAS NOT ALIGNED CORRECTLY IN PLANS AND SPECS. PUMPS WERE NOT SIZED CORRECTLY IN PLANS AND SPECS. MOD FIXES THIS.

EXERCISE OPTION 1B FROM THE NEW LOCK AT THE SOO - BASE CONTRACT

A00003 MAINTENANCE PUMP VFD SUPPLY. CONTRACT ADDS PUMPS FROM ONE TO TWO IN ORDER TO ENSURE REDUNDANCY IN DEWATERING IN CASE ONE PUMP FAILS OR IS DOWN FOR MAINTENANCE.

A00002 NPP BRIDGE POSITIONING. BRIDGE WAS DISCOVERED TO BE PLACED IN AN INCORRECT LOCATION RELATIVE TO THE NPP. MODIFICATION CORRECTS LOCATION AND ADJUSTS SIZE.

A00001 DUCT BANK IVO NPP CRIB DAM. DUCT BANK MUST BE RELOCATED DUE TO ITS PRESENCE NEAR THE EXISTING CRIB DAM, WHICH WILL BE RETROFITTED IN THE FUTURE.

NEW LOCK AT THE SOO - MODIFICATION TO EXERCISE OPTION 2

NEW LOCK AT THE SOO - MODIFICATION TO EXERCISE OPTION 1A

EXERCISE OPTION 7, ALLIGATOR'S MOUTH EXTENSION

NEW LOCK AT THE SOO, NEW THIRD LOCK, SAULT STE. MARIE, MICHIGAN - MODIFICATION TO EXERCISE OPTION 1C, NEW POWER PLANT BRIDGE RAMP.