-Primary impact restrictions may be necessary
TGP - Outage Impact Report
-Major impact restrictions may be necessary
Seven Day Forecast (updated 10/23/25)
-Minor impact restrictions may be necessary depending on flow conditions
-Little to no impact, though minor outages may cause incremental reductions
Station / Seg
Est Nominal
Operating Capacity (Thousand Dth)
Monday
(10/27)
Tuesday
(10/28)
Wednesday
(10/29)
Thursday
(10/30)
Friday
(10/31)
Saturday
(11/1)
Sunday
(11/2)
Primary Outage(s) that may Impact Throughput
Est. Operational Capacity (Operational Impact) - Thousand Dth
Station 409 (Donna Line) (segment 490 FH)
564
400
Station 1
(segment 101 BH)
175
(263)
MLV 404-2 to MLV 405-2: Anomaly Remediation (M) (10/29/2025 - 11/03/2025)
Station 9
(segment 109 BH)
1,028
Station 25
(segment 125 FH)
714
700
(14)
Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)
Station 40 South
(segment 132 FH)
912
747
(165)
MLV 32-2D TO MLV 40-2S: Pig Runs - Maintenance (10/28/2025)
Station 40 KN South (segment 501 FH)
268
100
(168)
Sta 500-1 to Sta 823 (MLV 507-1): Pig Run - Maintenance (M) (10/29/2025)
Station 47
(segment 143 FH)
1,226
884
(342)
(479)
MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-1AT to MLV 49-1: Anomaly Remediation (1/6/2025 - 10/31/2025) MLV 47-2A to MLV 48-2: Pipe Replacement (M) (11/1/2025 - 11/12/2025)
MLV 49-1 to MLV 50-1: Anomaly Remediation (3/4/2025 - 10/31/2025) MLV 53-3BR to MLV 54-3BL: HydroTest (10/27/2025 - 11/28/2025)
Sta 54: Unit 6B - Power Overhaul (10/1/2025 - 11/24/2025) Sta 54: Unit 8B - Power Overhaul (10/1/2025 - 11/24/2025)
Station 63
(segment 163 FH)
1,233
1068
760
(473)
1110
(123)
1133
(100)
MLV 63-4D to MLV 71-4S: Pig Runs - Caliper / IMU 10/30/25 (10/30/2025) MLV 63-4D to MLV 71-4S: Pig Runs - Cleaning / Gauge 10/28/25 (10/28/2025) MLV 64-2 to MLV 65-2: Immediate Anomaly Remediation (10/8/2025 - 11/15/2025)
MLV 83-3 to MLV 83-3B: Install Backpressure Regulator (10/16/2025 - 10/31/2025)
MLV 84-4 to MLV 85-4: Class Change Pipe Replacement (9/26/2025 - 10/27/2025)
Station 823
(segment 823 BH)
686
Station 834
(segment 834 BH)
679
670
(9)
664
(15)
Sta 834: Unit 6A - Overhaul (3/3/2025 - 11/3/2025)
Station 534 South of Pool (segment 530 BH)
1,798
1460
(338)
Sta 530: Unit 1A - Bearings (8/25/2025 - 3/31/2026) Sta 530: Unit 2A - Bearings (8/26/2025 - 12/19/2025)
Sta 530: Unit 3A - Crankshaft Replacement (6/9/2025 - 12/31/2026) Sta 530: Unit 5A - Top-End Overhaul (6/9/2025 - 12/31/2026)
Sta 530: Unit 6A - Bearings (10/6/2025 - 3/31/2026) Sta 530: Unit 7A - Bearings (10/6/2025 - 3/31/2026)
Sta 530: Unit 8A - Power Cylinders (9/23/2025 - 12/5/2025)
Sta 534: Unit 6A - Piston Liner & Unloader Replacements (3/25/2025 - 12/5/2025)
Sta 534: Unit 7A - Piston / Liner (5/20/2025 - 12/5/2025)
Station 542
(segment 539 BH)
1,719
845
(874)
MLV 540-2 to MLV 540-2A: Shallow Pipe Lowering (10/23/2025 - 10/31/2025)
MLV 548
(segment 542 BH)
1,597
1375
(222)
Sta 546: Unit 7A - Metal in Oil (7/14/2025 - 10/31/2025)
Station 860
(segment 548 BH)
1,516
1215
(301)
1245
(271)
1500
(16)
Sta 550 Hamilton: Annual ESD Test & Maintenance (10/27/2025 - 10/31/2025) Sta 550: A building - Replace SLC 500 Remote PLC (10/27/2025 - 10/31/2025) Sta 550: Unit 1B - Safety Device Checks (10/28/2025)
Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025)
Sta 555: Unit 3A - Flywheel Belt Tensioner Install (10/27/2025 - 10/29/2025)
Station 860 North (Segment 860 BH)
1,793
1780
(13)
1700
(93)
MLV 861-1 to MLV 862-1: Install New 30" Valve 861-1A (10/29/2025 - 11/3/2025)
Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2025)
Station 110
(segment 187 BH)
(south thru Kentucky)
2,645
2280
(365)
2410
(235)
MLV 108-2 to MLV 109-2: Special Permit Pipe Replacement (M) (11/1/2025 -
11/30/2025)
MLV 109-2 to 109-2A: Special Permit Pipe Replacement (10/16/2025 - 10/31/2025)
MLV 109-3 to MLV 109-3A: Special Permit Pipe Replacement (10/16/2025 - 10/31/2025)
MLV 867-2 to MLV 868-2: Anomaly Remediation (10/4/2025 - 10/31/2025) MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (10/23/2025 - 11/13/2025)
Sta 106 Clay City: Upgrade B Building Jacket Water System (10/27/2025 - 11/21/2025)
Sta 106: Unit 1C - Replace Power Cylinder Bearing #7 (4/14/2025 - 10/31/2025)
Sta 87: Unit 2E - Turbocharger Replacement (10/27/2025 - 11/21/2025) Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026)
Station 114
(segment 114 BH)
920
840
(80)
850
(70)
Sta 114: Unit 1C - Complete Intallation of Unit Valves (10/27/2025) Sta 114: Unit 2C - Complete Installation of Unit Valves (10/29/2025) Sta 118A Tyler Mountain: Annual ESD Test (10/27/2025 - 10/29/2025)
Station 204
(Segment 204 BH)
1,827
1761
(66)
1371
(456)
1797
(30)
1664
(163)
MLV 209-4 to MLV 204-4: Pig Runs - Cleaning / Gauge 10/30/25 (M) (10/30/2025)
MLV 213-2A to MLV 214-2: Special Permit Replacement (10/9/2025 - 11/19/2025)
Sta 209: Unit 7A - Packing (10/27/2025 - 10/30/2025)
Station 245
(segment 245 FH)
997
970
(27)
Sta 241: Unit 1A - Engine Maintenance (10/27/2025 - 10/31/2025)
Station 249
(segment 249 FH)
1,089
942
(147)
Sta 249: Unit 1A - Aftercooler Upgrade (9/29/2025 - 10/31/2025)
Station 254
(segment 256 FH)
1,213
1055
(158)
931
(282)
Sta 254: Bldg A Stack Replacement and Unit Upgrades (7/14/2025 - 11/1/2025)
Sta 254: Unit 4A - Replace Power Cylinder Head (5/16/2025 - 11/1/2025)
Station 261 Discharge East (segment 261 FH)
941
Station 267 South (segment 266 FH)
469
312
(157)
Sta 267: Bldg A Controls Upgrade (9/2/2025 - 11/26/2025)
Station 307
(segment 307 BH)
1,150
965
(185)
Sta 303A: Unit 1A - Water Wash (10/28/2025 - 10/29/2025)
Station 315
(segment 315 BH)
1,854
1690
(164)
Sta 315: Unit 2A - Inspect Bleed Duct Line (10/27/2025)
MLV 324
(segment 324 FH)
1,767
1510
(257)
1517
(250)
Sta 325: Unit 3A - Engine ESD Valve (10/2/2025 - 11/3/2025) Sta 325: Units 4A - Vibration (9/8/2025 - 11/3/2025)
Station 405 HC Line (segment 299 FH)
803
This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses.
Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.
The impacts sheet are based on steady-state hydraulic models assuming recent operating flows, conditions, and various unit outages.
November 2025 (updated 10/23/25)
Station # / Lateral
Week 1
(11/3 - 11/9)
Week 2
(11/10 - 11/16)
Week 3
(11/17 - 11/23)
Week 4
(11/24 - 11/30)
Primary Outage(s)
Station 409A (Alamo) (segment 492 FH)
295
145
(150)
MLV 409A-901 to MLV 409A-902: Pig Run - Cleaning 11/18/25 (M) (11/18/2025) MLV 409A-901 to MLV 409A-902: Pig Run - MFL-A 11/19/25 (M) (11/19/2025)
585
438
180
(258)
MLV 403-2 to MLV 404-2: Anomaly Remediation (M) (11/4/2025 - 11/21/2025) MLV 404-2 to MLV 405-2: Anomaly Remediation (M) (10/29/2025 - 11/03/2025)
MLV 4
(segment 101 FH)
1,033
1,066
Station 17
(segment 117 FH)
1,143
1130
MLV 17-1D to MLV 18-1: Anomaly Remediation (11/3/2025 - 11/21/2025)
1,101
1087
MLV 26-1 Relocation: Highway 59 Widening (11/11/2025 - 12/10/2025) Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)
1,299
1280
(19)
MLV 32-3D to MLV 40-3S: Pig Runs - Maintenance (11/4/2025)
1,354
875
890
(464)
MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-2A to MLV 48-2: Pipe Replacement (M) (11/1/2025 - 11/12/2025) MLV 47-3A to MLV 48-3: Pipe Replacement (11/25/2025 - 12/10/2025) MLV 47-4A to MLV 48-4: Pipe Replacement (M) (11/13/2025 - 11/24/2025)
MLV 53-3BR to MLV 54-3BL: HydroTest (10/27/2025 - 11/28/2025)
1,287
810
(477)
1185
(102)
1135
(152)
MLV 63-4D to MLV 71-4S: Pig Runs - EMAT 11/6/25 (11/6/2025) MLV 63-4D to MLV 71-4S: Pig Runs - MFL-C 11/4/25 (11/4/2025)
MLV 64-2 to MLV 65-2: Immediate Anomaly Remediation (10/8/2025 - 11/15/2025)
MLV 65-2 to MLV 66-2: Immediate Anomaly Remediation (11/17/2025 - 11/30/2025)
MLV 66-2 to MLV 67-2: Immediate Anomaly Remediation (11/17/2025 - 11/30/2025)
MLV 71-1D to MLV 77-1A: Pig Re-Runs - MDS 11/12/25 (11/12/2025)
759
(614)
Sta 827 to Sta 823: Pig Run - Maintenance (M) (11/5/2025) Sta 834 to Sta 827: Maintenance Pig (M) (11/5/2025)
Station 827 (Alexandria): Station Recycle Valve (11/4/2025 - 11/6/2025)
733
718
1,632
1294
Sta 530: Unit 1A - Bearings (8/25/2025 - 3/31/2026)
Sta 530: Unit 2A - Bearings (8/26/2025 - 12/19/2025)
1,905
1865
(40)
Sta 542: Unit 1B - Safety Device Testing (11/10/2025 - 11/14/2025)
1,771
1736
(35)
Sta 546: Unit 4A - Engine and Compressor Overhaul (11/3/2025 - 12/12/2025)
1,697
785
(912)
1681
MLV 546-1 to MLV 542-1: Pig Runs - Maintenance (11/5/2025) MLV 546-2 to MLV 542-2: Pig Runs - Maintenance (11/6/2025) MLV 546-3 to MLV 544-3: Pig Runs - Maintenance (11/4/2025) Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025)
2,028
1920
(108)
1910
(118)
1575
(453)
2028
(0)
MLV 560-1 to MLV 563-1: HDD River Crossing & MLV 561-1 & MLV 562-1
Replacement (11/17/2025 - 11/21/2025)
Sta 860: Unit 1A - Aftercooler Jacket Water Inspection (6/17/2025 - 12/31/2025) Sta 860: Unit 1C - 4K Turbine Water Wash (11/3/2025 - 11/4/2025)
Sta 860: Unit 1C - Engine Inspection/Condition Assessment (11/3/2025 - 11/4/2025)
Sta 860: Unit 2C - 4K Turbine Water Wash (11/5/2025 - 11/6/2025) Sta 860: Unit 2C - Engine Inspection/Condition Assessment (11/5/2025 -
11/6/2025)
Sta. 860: A Building - replace discharge valves (11/11/2025 - 11/12/2025)
2,775
2175
(600)
2540
2645
(130)
MLV 108-2 to MLV 109-2: Special Permit Pipe Replacement (M) (11/1/2025 - 11/30/2025)
MLV 87-4 to MLV 96-4: Pig Runs - AFD Combo 11/11/25 (M) (11/11/2025)
MLV 87-4 to MLV 96-4: Pig Runs - Caliper 11/6/25 (M) (11/6/2025)
MLV 87-4 to MLV 96-4: Pig Runs - Cleaning / Gauge 11/4/25 (M) (11/4/2025) MLV 87-4 to MLV 96-4: Pig Runs - EMAT 11/13/25 (M) (11/13/2025)
MLV 90-3 to MLV 91-3: HDD River Crossing Replacement (10/23/2025 - 11/13/2025)
948
1,895
1432
(463)
1459
(436)
1419
(476)
MLV 209-4 to MLV 204-4: Pig Runs - Cal & IMU 11/04/25 (M) (11/4/2025) MLV 209-4 to MLV 204-4: Pig Runs - MFL-A 11/06/25 (M) (11/6/2025)
MLV 219-4 to MLV 214-4: Pig Run - Cleaning/Gauge 11/11/25 (M) (11/11/2025) MLV 219-4 to MLV 214-4: Pig Run - EMAT 11/20/25 (M) (11/20/2025)
MLV 219-4 to MLV 214-4: Pig Run - IMU/Caliper 11/13/25 (M) (11/13/2025) MLV 219-4 to MLV 214-4: Pig Run - MFL-C 11/18/25 (M) (11/18/2025)
Sta 209: Unit 12A - P3L pull piston and inspect rings and cylinder (11/10/2025 - 11/13/2025)
1,063
1,045
503
346
1,202
1145
(57)
Sta 307: Unit 2A - Engine Maintenance (11/3/2025 - 11/7/2025)
1,915
1,885
1635
827
December 2025 (updated 10/23/25)
(12/1 - 12/7)
(12/8 - 12/14)
(12/15 - 12/21)
(12/22 - 12/28)
1075
(26)
MLV 26-1 Relocation: Highway 59 Widening (11/11/2025 - 12/10/2025) MLV 26-1 to MLV 27-1: Install Road Casing (12/6/2025 - 1/19/2026) MLV 26-2 Relocation: Highway 59 Widening (12/11/2025 - 1/19/2026) Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)
1275
(79)
1349
(5)
MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025) MLV 47-3A to MLV 48-3: Pipe Replacement (11/25/2025 - 12/10/2025)
Station 847
(segment 847 BH)
338
200
(138)
MLV 856-1 to MLV 860-1: Pig Runs - Cal / IMU 12/9/25 (12/9/2025)
MLV 856-1 to MLV 860-1: Pig Runs - Cleaning / Gauge 12/4/25 (12/4/2025) MLV 856-1 to MLV 860-1: Pig Runs - MFL-C 12/11/25 (12/11/2025)
1610
(22)
Sta 550: Unit 2A - Compressor Overhaul (8/25/2025 - 12/5/2025) Sta 550: Unit 3A - Turbocharger Exchange (12/8/2025 - 12/19/2025)
2015
(south thru
Kentucky)
2600
(175)
Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026) Sta 96: Unit 1D - Compressor Valves (12/1/2025 - 12/12/2025)
1722
(173)
MLV 204-2 to MLV 200-2: Pig Runs - EMAT 12/18/25 (M) (12/18/2025)
MLV 204-2 to MLV 200-2: Pig Runs - MFL-C 12/16/25 (M) (12/16/2025)
January 2026 (updated 10/23/25)
(12/29 - 1/4)
(1/5 - 1/11)
(1/12 - 1/18)
(1/19 - 1/25)
Week 5
(1/26 - 2/1)
855
(246)
MLV 26-1 to MLV 27-1: Install Road Casing (12/6/2025 - 1/19/2026) MLV 26-2 Relocation: Highway 59 Widening (12/11/2025 - 1/19/2026) MLV 26-3 Relocation: Highway 59 Widening (M) (1/20/2026 - 2/19/2026) Sta 25: Unit 1C - VFD Replacement (7/16/2025 - 10/31/2026)
MLV 47-1A to MLV 48-1: Class Change (9/1/2025 - 12/31/2025)
2535
(240)
Sta 871: Unit 1A - 3Q Engine Inspection (12/31/2025) Sta 871: Unit 2A - 3Q Engine Inspection (12/31/2025)
Sta 871: Unit 3A - Engine Crankshaft Inspection (8/22/2025 - 1/30/2026)
This document is updated on a weekly basis and outage schedules/impacts are subject to change as the week progresses. Dates posted on DART should be deemed correct in the event of conflicts between DART posted dates and dates on this report.
Your session will expire in . Click OK to renew your session.
