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This report is a sub-report of the PHMSA Significant Pipeline Incidents report. As such, it represents Significant Incidents (A) only over the time period and pipeline system specified.

The data source for this table is the PHMSA Filtered Incident Files. (1) (2) (3)

More Pipeline Incidents and Mileage Reports are available.

• All Pipeline Systems
• Hazardous Liquid
• Gas Transmission
• Gas Gathering
• Gas Distribution

National All Pipeline Systems: Significant Incident Details: 1994

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	54	16.5%	0	3	$11,986,884	5.8%
Sub Total	54	16.5%	0	3	$11,986,884	5.8%
EXCAVATION DAMAGE
VARIOUS	75	23.0%	8	61	$50,727,675	24.8%
Sub Total	75	23.0%	8	61	$50,727,675	24.8%
HUMAN ERROR
VARIOUS	16	4.9%	0	7	$5,096,654	2.4%
Sub Total	16	4.9%	0	7	$5,096,654	2.4%
MATERIAL FAILURE
VARIOUS	54	16.5%	0	13	$10,014,858	4.9%
Sub Total	54	16.5%	0	13	$10,014,858	4.9%
NATURAL FORCE DAMAGE
VARIOUS	40	12.2%	3	(D) 14	$50,151,785	24.5%
Sub Total	40	12.2%	3	14	$50,151,785	24.5%
ALL OTHER CAUSES
VARIOUS	87	26.6%	11	22	$76,576,460	37.4%
Sub Total	87	26.6%	11	22	$76,576,460	37.4%
Totals	326	100.0%	22	120	$204,554,318	100.0%

• All Hazardous Liquid Systems
• Onshore Only
• Offshore Only

National Hazardous Liquid: Significant Incident Details: 1994

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	30	16.8%	0	0	$2,265,675	2.8%
Sub Total	30	16.8%	0	0	$2,265,675	2.8%
EXCAVATION DAMAGE
VARIOUS	29	16.2%	0	1	$4,142,965	5.2%
Sub Total	29	16.2%	0	1	$4,142,965	5.2%
HUMAN ERROR
VARIOUS	9	5.0%	0	0	$4,999,232	6.3%
Sub Total	9	5.0%	0	0	$4,999,232	6.3%
MATERIAL FAILURE
VARIOUS	43	24.1%	0	1	$9,637,319	12.1%
Sub Total	43	24.1%	0	1	$9,637,319	12.1%
NATURAL FORCE DAMAGE
VARIOUS	13	7.3%	0	(D) 1	$41,835,851	52.7%
Sub Total	13	7.3%	0	1	$41,835,851	52.7%
ALL OTHER CAUSES
VARIOUS	54	30.3%	1	4	$16,446,305	20.7%
Sub Total	54	30.3%	1	4	$16,446,305	20.7%
Totals	178	100.0%	1	7	$79,327,350	100.0%

National Hazardous Liquid Onshore: Significant Incident Details: 1994

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	29	16.2%	0	0	$2,226,706	2.8%
Sub Total	29	16.2%	0	0	$2,226,706	2.8%
EXCAVATION DAMAGE
VARIOUS	29	16.2%	0	1	$4,142,965	5.2%
Sub Total	29	16.2%	0	1	$4,142,965	5.2%
HUMAN ERROR
VARIOUS	9	5.0%	0	0	$4,999,232	6.3%
Sub Total	9	5.0%	0	0	$4,999,232	6.3%
MATERIAL FAILURE
VARIOUS	43	24.1%	0	1	$9,637,319	12.1%
Sub Total	43	24.1%	0	1	$9,637,319	12.1%
NATURAL FORCE DAMAGE
VARIOUS	12	6.7%	0	(D) 1	$41,511,111	52.3%
Sub Total	12	6.7%	0	1	$41,511,111	52.3%
ALL OTHER CAUSES
VARIOUS	54	30.3%	1	4	$16,446,305	20.7%
Sub Total	54	30.3%	1	4	$16,446,305	20.7%
Totals	176	98.8%	1	7	$78,963,641	99.5%

National Hazardous Liquid Offshore: Significant Incident Details: 1994

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	1	0.5%	0	0	$38,968	0.0%
Sub Total	1	0.5%	0	0	$38,968	0.0%
NATURAL FORCE DAMAGE
VARIOUS	1	0.5%	0	(D) 0	$324,739	0.4%
Sub Total	1	0.5%	0	0	$324,739	0.4%
Totals	2	1.1%	0	0	$363,708	0.4%

• All Gas Transmission Systems
• Onshore Only
• Offshore Only

National Gas Transmission: Significant Incident Details: 1994

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	16	35.5%	0	1	$4,434,431	7.9%
Sub Total	16	35.5%	0	1	$4,434,431	7.9%
EXCAVATION DAMAGE
VARIOUS	12	26.6%	0	15	$36,004,806	64.4%
Sub Total	12	26.6%	0	15	$36,004,806	64.4%
MATERIAL FAILURE
VARIOUS	4	8.8%	0	2	$351,559	0.6%
Sub Total	4	8.8%	0	2	$351,559	0.6%
NATURAL FORCE DAMAGE
VARIOUS	4	8.8%	0	1	$4,955,527	8.8%
Sub Total	4	8.8%	0	1	$4,955,527	8.8%
ALL OTHER CAUSES
VARIOUS	9	20.0%	0	3	$10,126,736	18.1%
Sub Total	9	20.0%	0	3	$10,126,736	18.1%
Totals	45	100.0%	0	22	$55,873,060	100.0%

National Gas Transmission Onshore: Significant Incident Details: 1994

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	10	22.2%	0	1	$3,304,336	5.9%
Sub Total	10	22.2%	0	1	$3,304,336	5.9%
EXCAVATION DAMAGE
VARIOUS	7	15.5%	0	8	$34,523,993	61.7%
Sub Total	7	15.5%	0	8	$34,523,993	61.7%
MATERIAL FAILURE
VARIOUS	4	8.8%	0	2	$351,559	0.6%
Sub Total	4	8.8%	0	2	$351,559	0.6%
NATURAL FORCE DAMAGE
VARIOUS	4	8.8%	0	1	$4,955,527	8.8%
Sub Total	4	8.8%	0	1	$4,955,527	8.8%
ALL OTHER CAUSES
VARIOUS	9	20.0%	0	3	$10,126,736	18.1%
Sub Total	9	20.0%	0	3	$10,126,736	18.1%
Totals	34	75.5%	0	15	$53,262,153	95.3%

National Gas Transmission Offshore: Significant Incident Details: 1994

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	6	13.3%	0	0	$1,130,094	2.0%
Sub Total	6	13.3%	0	0	$1,130,094	2.0%
EXCAVATION DAMAGE
VARIOUS	5	11.1%	0	7	$1,480,813	2.6%
Sub Total	5	11.1%	0	7	$1,480,813	2.6%
Totals	11	24.4%	0	7	$2,610,907	4.6%

National Gas Gathering: Significant Incident Details: 1994

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	4	80.0%	0	0	$1,000,213	64.8%
Sub Total	4	80.0%	0	0	$1,000,213	64.8%
EXCAVATION DAMAGE
VARIOUS	1	20.0%	0	0	$542,932	35.1%
Sub Total	1	20.0%	0	0	$542,932	35.1%
Totals	5	100.0%	0	0	$1,543,146	100.0%

National Gas Distribution: Significant Incident Details: 1994

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	4	4.0%	0	2	$4,286,564	6.3%
Sub Total	4	4.0%	0	2	$4,286,564	6.3%
EXCAVATION DAMAGE
VARIOUS	33	33.6%	8	45	$10,036,971	14.8%
Sub Total	33	33.6%	8	45	$10,036,971	14.8%
HUMAN ERROR
VARIOUS	7	7.1%	0	7	$97,421	0.1%
Sub Total	7	7.1%	0	7	$97,421	0.1%
MATERIAL FAILURE
VARIOUS	7	7.1%	0	10	$25,979	0.0%
Sub Total	7	7.1%	0	10	$25,979	0.0%
NATURAL FORCE DAMAGE
VARIOUS	23	23.4%	3	12	$3,360,406	4.9%
Sub Total	23	23.4%	3	12	$3,360,406	4.9%
ALL OTHER CAUSES
VARIOUS	24	24.4%	10	15	$50,003,418	73.7%
Sub Total	24	24.4%	10	15	$50,003,418	73.7%
Totals	98	100.0%	21	91	$67,810,761	100.0%

Notes

1. Significant Incidents are those incidents reported by pipeline operators with any of the following conditions are met: 1) fatality or injury requiring in-patient hospitalization. 2) $50,000 or more in total costs, measured in 1984 dollars. 3) highly volatile liquid releases of 5 barrels or more or other liquid releases of 50 barrels or more. 4) liquid releases resulting in an unintentional fire or explosion
2. Costs in the current year (2008) are nominal (as reported). The costs for incidents prior to 2008 are presented in 2007 dollars. Cost of Gas lost is indexed via the Energy Information Administration, Natural Gas City Gate Prices. All other costs are adjusted via the Bureau of Economic Analysis, Government Printing Office inflation values.
3. For years 2002 and later, property damage is estimated as the sum of all public and private costs reported in the 30-day incident report. For years prior to 2002, accident report forms did not include a breakdown of public and private costs so property damage for these years is the reported total property damage field in the report. All costs prior to 2008 are expressed in 2007 dollars. Costs in current year (2008) are nominal.
4. Does not include 1,851 injuries that required medical treatment reported for the October, 1994 accidents that were caused by severe flooding near Houston, Texas.

Sources

1. PHMSA Hazardous Liquid Filtered Incidents File - August 25, 2008
2. PHMSA Gas Transmission Filtered Incidents File - August 25, 2008
3. PHMSA Gas Distribution Filtered Incidents File - August 25, 2008

See Pipeline Incidents and Mileage Reports for more pipeline safety reports.