Colonial Pipeline and site of Sept 2016 leak in Alabama

A Proper Picture of the Colonial Pipeline’s Past

On September 9, 2016 a pipeline leak was detected from the Colonial Pipeline by a mine inspector in Shelby County, Alabama. It is estimated to have spilled ~336,000 gallons of gasoline, resulting in the shutdown of a major part of America’s gasoline distribution system. As such, we thought it timely to provide some data and a map on the Colonial Pipeline Project.

Figure 1. Dynamic map of Colonial Pipeline route and related infrastructure

View Map Fullscreen | How Our Maps Work | The Sept. 2016 leak occurred in Shelby County, Alabama

Pipeline History

The Colonial Pipeline was built in 1963, with some segments dating back to at least 1954. Colonial carries gasoline and other refined petroleum projects throughout the South and Eastern U.S. – originating at Houston, Texas and terminating at the Port of New York and New Jersey. This ~5,000-mile pipeline travels through 12 states and the Gulf of Mexico at one point. According to available data, prior to the September 2016 incident for which the cause is still not known, roughly 113,382 gallons had been released from the Colonial Pipeline in 125 separate incidents since 2010 (Table 1).

Table 1. Reported Colonial Pipeline incident impacts by state, between 3/24/10 and 7/25/16

State Incidents (#) Barrels* Released Total Cost ($)
AL 10 91.49 2,718,683
GA 11 132.38 1,283,406
LA 23 86.05 1,002,379
MD 6 4.43 27,862
MS 6 27.36 299,738
NC 15 382.76 3,453,298
NJ 7 7.81 255,124
NY 2 27.71 88,426
PA 1 0.88 28,075
SC 9 1639.26 4,779,536
TN 2 90.2 1,326,300
TX 19 74.34 1,398,513
VA 14 134.89 15,153,471
Total** 125 2699.56 31,814,811
*1 Barrel = 42 U.S. Gallons

** The total amount of petroleum products spilled from the Colonial Pipeline in this time frame equates to roughly 113,382 gallons. This figure does not include the September 2016 spill of ~336,000 gallons.

Data source: PHMSA

Unfortunately, the Colonial Pipeline has also been the source of South Carolina’s largest pipeline spill. The incident occurred in 1996 near Fork Shoals, South Carolina and spilled nearly 1 million gallons of fuel into the Reedy River. The September 2016 spill has not reached any major waterways or protected ecological areas, to-date.

Additional Details

Owners of the pipeline include Koch Industries, South Korea’s National Pension Service and Kohlberg Kravis Roberts, Caisse de dépôt et placement du Québec, Royal Dutch Shell, and Industry Funds Management.

For more details about the Colonial Pipeline, see Table 2.

Table 2. Specifications of the Colonial and/or Intercontinental pipeline

Pipeline Segments 1,1118
Mileage (mi.)
Avg. Length 4.3
Max. Length 206
Total Length 4,774
Segment Flow Direction (# Segments)
Null 657
East 33
North 59
Northeast 202
Northwest 68
South 20
Southeast 30
Southwest 14
West 35
Segment Bi-Directional (# Segments)
Null 643
No 429
Yes 46
Segment Location
State Number Total Mileage Avg. Mileage Long Avg. PSI Avg. Diameter (in.)
Alabama 11 782 71 206 794 35
Georgia 8 266 33 75 772 27
Gulf of Mexico 437 522 1.2 77 50 1.4
Louisiana 189 737 3.9 27 413 11
Maryland 11 68 6.2 9 781 30
Mississippi 63 56 0.9 15 784 29
North Carolina 13 146 11.2 23 812 27
New Jersey 65 314 4.8 28 785 28
New York 2 6.4 3.2 6.4 800 26
Pennsylvania 72 415 5.8 17 925 22
South Carolina 6 119 19.9 55 783 28
Texas 209 1,004 4.8 33 429 10
Virginia 32 340 10.6 22 795 27
PSI = Pounds per square inch (pressure)

Data source: US EIA


By Sam Rubright, Ted Auch, and Matt Kelso – FracTracker Alliance

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