-Restrictions to Primary In-Path transportation services may be necessary.
SNG - Outage Impact Report
-Restrictions to In-Path transportation services may be necessary.
Seven Day Forecast (updated 04/03/25)
-Restrictions to Interruptible and Out of Path transportation services may be necessary.
-No anticipated impact to transportation services.
Station / Seg
Est Nominal Design Capacity (Thousand Dth)
Monday (4/7)
Tuesday (4/8)
Wednesday (4/9)
Thursday (4/10)
Friday (4/11)
Saturday (4/12)
Sunday (4/13)
Primary Outage(s) that may Impact Throughput
Est. Operational Capacity (Operational Impact) - Thousand Dth
Onward (segment 30)
203
Duncanville Lateral (segment 90)
36
Dearmanville (segment 150)
346
White Castle (segment 340)
772
Sesh (segment 380)
506
341
(165)
464
(42)
SESH: Scheduled Maintenance (M) (4/12/2025) SESH: Scheduled Maintenance (M) (4/13/2025)
Gwinville Pool (segment 390)
1,607
1217
(390)
1342
(265)
Gwinville Compressor Station: Scheduled Station Maintenance Proj-5211P4B (4/2/2025 - 4/11/2025)
Gwinville Compressor Station: Scheduled Station Maintenance Proj-5211P4C (4/12/2025 - 4/21/2025)
Gwinville (segment 400)
234
199
(35)
Gwinville Pickens Line north of Gwinville: Pipeline Maintenance(remediation) Proj-SNG-19050/20646/21938 (3/31/2025 - 4/7/2025)
Enterprise (segment 430)
2,306
2136
(170)
Enterprise Compressor Station: Scheduled Unit Maintenance Proj-522216 (4/1/2025 - 4/7/2025)
York (segment 440)
2,305
2080
(225)
2125
(180)
York Compressor Station: Scheduled Unit Maintenance Proj-52301 (4/7/2025 - 10/31/2025)
York Compressor Station: Scheduled Unit Maintenance Proj-52303 (4/7/2025 - 4/9/2025)
Auburn (segment 460)
1,953
1628
(325)
South Main Loop Line east of Auburn: Scheduled Pipeline Maintenance Proj-SNG-24941 (4/9/2025 - 4/23/2025)
South Main Loop Line west of Ellerslie: Scheduled Pipeline Maintenance Proj-SNG-24942 (4/9/2025 - 4/23/2025)
Ellerslie (segment 490)
1,547
Thomaston West (segment 490)
1,535
1495
(40)
Thomaston Compressor Station: Unscheduled Unit Outage Proj-52723 (1/30/2025 - 4/20/2025)
South Atlanta (segment 510)
522
Thomaston East (segment 530)
849
East/South Wrens (segment 560)
680
625
(55)
Wrens Compressor Station: Scheduled Unit Maintenance Proj-52885 (3/18/2025 - 4/14/2025)
South Georgia (segment 650)
127
Holy Trinity (segment 655)
97
(30)
Holy Trinity Compressor Station: Scheduled Station Maintenance (4/5/2025 - 4/12/2025) Holy Trinity Compressor Station: Scheduled Unit Maintenance
Proj-58051 (4/7/2025 - 4/12/2025)
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.
April 2025 (updated 04/03/25)
Week 1 (3/31 - 4/6)
Week 2 (4/7 - 4/13)
Week 3 (4/14 - 4/20)
Week 4 (4/21 - 4/27)
Primary Outage(s)
Louisville East (segment 50)
520
275
(245)
2nd North Main Line east of Pickens: Pipeline Maintenance(remediation), Proj-SNG-19047 (M) (4/14/2025 - 4/25/2025)
Pell City Station (segment 140)
474
304
Talladega Branch Loop Line south of Dearmanville: Scheduled Pipeline Maintenance, Proj-SNG-36904 (4/22/2025 - 4/24/2025)
Gwinville Compressor Station: Scheduled Station Maintenance, Proj-5211P4C (4/12/2025 - 4/21/2025)
150
(84)
2nd North Main Line east of Pickens: Pipeline Maintenance(remediation), Proj-SNG-19047 (4/14/2025 - 4/25/2025)
2126
2103
(203)
Enterprise Compressor Station: Scheduled Station Maintenance , Proj-5222WC (4/24/2025 - 5/4/2025) Enterprise Compressor Station: Unit maintenance, Porj-5222B (4/17/2025 - 4/21/2025)
York Compressor Station: Scheduled Unit Maintenance, Proj-52301 (4/7/2025 - 10/31/2025)
Gallion (Segment 440)
2,300
2030
(270)
Gallion Compressor Station: Scheduled Unit Maintenance, Proj-523610 (4/21/2025 - 4/28/2025)
South Main 2nd Loop Line at Auburn Compressor Station: Pipeline Maintenance(MLV repair) (4/16/2025 - 4/20/2025)
South Main Loop Line east of Auburn: Scheduled Pipeline Maintenance, Proj-SNG-24941 (4/9/2025 - 4/23/2025)
South Main Loop Line west of Ellerslie: Scheduled Pipeline Maintenance, Proj-SNG-24942 (4/9/2025 - 4/23/2025)
1317
(230)
Thomaston Compressor Station: Scheduled Unit Maintenance, Proj-52721 (4/14/2025 - 4/18/2025)
Thomaston Compressor Station: Unscheduled Unit Outage, Proj-52723 (1/30/2025 - 4/20/2025)
Hall Gate (segment 560)
705
635
(70)
Hall Gate Compressor Station: Scheduled Unit Maintenance, Proj-52833 (4/21/2025 - 5/26/2025)
Wrens Compressor Station: Scheduled Unit Maintenance, Proj-52885 (3/18/2025 - 4/14/2025)
Mainline #1 north of Holy Trinity Compressor Station: Scheduled Pipeline Maintenance (4/14/2025 - 4/20/2025)
May 2025 (updated 04/03/25)
Week 1 (4/28 - 5/4)
Week 2 (5/5 - 5/11)
Week 3 (5/12 - 5/18)
Week 4 (5/19 - 5/25)
Week 5 (5/26 - 6/1)
LA West Leg (segment 350)
695
535
(160)
Duck Lake Franklinton Line north of White Castle: Scheduled Pipeline Maintenance, Proj-SNG-2753 (5/22/2025 - 6/5/2025)
500
434
(66)
452
(48)
SESH: Scheduled Maintenance (M) (5/12/2025) SESH: Scheduled Maintenance (M) (5/13/2025 - 5/14/2025)
SESH: Scheduled Maintenance (M) (5/15/2025) SESH: Scheduled Maintenance (M) (5/19/2025 - 5/20/2025)
SESH: Scheduled Maintenance (M) (5/21/2025)
Gwinville Compressor Station: Scheduled Station Maintenance, Proj-521113P5A (4/29/2025 - 5/2/2025) Gwinville Compressor Station: Scheduled Station Maintenance, Proj-5211P5 (4/28/2025 - 5/8/2025)
0
(234)
149
(85)
Gwinville Compressor Station: Scheduled Station Maintenance, Proj-5211P5 (4/28/2025 - 5/8/2025) Pickens Compressor Station: Scheduled Unit Maintenance , Proj-41251 (5/12/2025 - 5/30/2025)
Bay Springs (segment 420)
1,675
1485
(190)
Bay Springs Compressor Station: Scheduled Unit Maintenance, Proj-52163 (5/12/2025 - 5/16/2025)
Enterprise Compressor Station: Scheduled Station Maintenance , Proj-5222WC (4/24/2025 - 5/4/2025) Enterprise Compressor Station: Scheduled Station Maintenance, Proj-5222T (5/9/2025)
Selma (segment 460)
2,293
1993
(300)
1843
(450)
Elmore Compressor Station: Scheduled Unit Maintenance, Proj-525112 (5/19/2025 - 5/23/2025) South Main Loop Line east of Selma: Scheduled Pipeline Maintenance, Proj-SNG-24945 (5/12/2025 - 5/20/2025)
1813
(140)
South Main Loop Line west of Ellerslie: Scheduled Pipeline Maintenance, Proj-SNG-24943 (4/28/2025 - 5/11/2025)
South Main Loop Line west of Ellerslie: Scheduled Pipeline Maintenance, Proj-SNG-24944 (4/28/2025 - 5/11/2025)
June 2025 (updated 04/03/25)
Week 1 (6/2 - 6/8)
Week 2 (6/9 - 6/15)
Week 3 (6/16 - 6/22)
Week 4 (6/23 - 6/29)
Duck Lake Franklinton Line north of White Castle: Scheduled Pipeline Maintenance,
Proj-SNG-2753 (5/22/2025 - 6/5/2025)
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.
July 2025 (updated 04/03/25)
Week 1 (6/30 - 7/6)
Week 2 (7/7 - 7/13)
Week 3 (7/14 - 7/20)
Week 4 (7/21 - 7/27)
Week 5 (7/28 - 8/3)