1. ABC Company ABC Chemical Complex Engineering Specification
Protection of DOT Regulated Pipelines During Construction and Repair Activities
ABC Company
ABC Chemical Complex
Engineering Specification

2. Pipeline Protection During Construction/Repair Activities
SCOPE AND INTENT
Scope
Provides requirements for protection of ABC pipelines during construction and repair activities performed by the Company, Company contractors, or other owner-users of the right-of-way.
Intent
Provide engineering methods to prevent damage to pipelines and pipeline components (above and below ground) .

3. Pipeline Protection During Construction/Repair Activities
REFERENCES
ANSI B31.4, Hazardous Liquid Pipelines
ANSI B31.8, Gas Transmission Pipelines
API RP 1102, SteelPipelines Crossing Railroads and Highways
API RP 1109, Marking Liquid Petroleum Pipeline Facilities
ABC Engineering Specification, “Corrosion Control and Monitoring”

4. Pipeline Protection During Construction/Repair Activities
DEFINITIONS
Carrier pipe
Casing pipe
Load Bearing Devices
Pipeline Markers
Protective Barriers
“Louisiana One Call”
Pipe Pad

5. Pipeline Protection During Construction/Repair Activities
GENERAL REQUIREMENTS
Markers for Buried Pipelines
Design and install in accordance with API RP 1109.
Place directly above the pipeline whenever possible.
Place along the pipeline at designated intervals, at all road crossings, river crossings, at all entrances to the pipeline right-of-way, and at any change in direction of the pipeline.
Use adequate number of markers to allow other right-of-way owner-users to locate pipe by line of sight.

6. Pipeline Protection During Construction/Repair Activities
GENERAL REQUIREMENTS (Continued)
Protective Barriers
Locate barriers to protect above ground equipment such as regulator stations, metering stations, and vent pipes.
Design barrier locations to allow free access to vehicular traffic on the right-of-way, if necessary.

7. Pipeline Protection During Construction/Repair Activities
GENERAL REQUIREMENTS (Continued)
Load Bearing Devices
Use heavier wall pipe in lieu of load bearing devices if possible.
Concrete tiles are preferred to steel casing.
Specify 3000 psi concrete for concrete tiles.
Specify red color for concrete tiles.
Specify tile width to be at least 1.5 x pipe diameter.
Install tiles at least 1.5 x pipe diameter above the top of the pipe.

8. Pipeline Protection During Construction/Repair Activities
GENERAL REQUIREMENTS (Continued)
Preventing accidental damage to other owner-user’s equipment
Use “YOUR STATE One Call” to locate and mark buried pipelines.
Call other owner-users and ask them to locate and mark their underground pipelines.

9. Pipeline Protection During Construction/Repair Activities
GENERAL REQUIREMENTS (Continued)
Review and follow instructions in the Company Warehousing and Purchasing Procedure for handling materials of construction during transportation.
Review and follow instructions in the Company Corrosion Control and Monitoring Specification for handling pipe, coating material, and consumables during construction.