Lessons Learned – October 2018

October 2018

EVENT DESCRIPTION While moving mats on the ROW a contract equipment operator moved the boom up to avoid damaging corn in an adjacent field in turn striking and severing a 220v overhead power line.

KEY LEARNINGSThe 220v overhead power line was not identified prior to work. The track hoe spotter was performing other duties when the line was struck.

KEY TAKEAWAYS1. Mark/flag overhead utilities prior to moving equipment.2. DO NOT operate heavy equipment without spotters.3. Make sure overhead utilities are listed on the JSA when

present and are discussed in the pre-job meeting.

Near Miss Report

EVENT DESCRIPTIONContractor performing work at a station noticed stained rock. Investigation revealed that diesel had saturated the soil surrounding the station alternate discharge valve . The source was identified as a leak in a 3” drain line connected to the alternate discharge line.

KEY LEARNINGSThis and similar recent events have identified concerns with idle sections of pipe/piping that may lead to internal corrosion.

KEY TAKEAWAYSEngineering and Asset Integrity are developing solutions/recommendations to address concerns. GD-01 (Guidance Document for Drain Systems) is available in PolicyTech that may address some of these issues.

Incident Report

EVENT DESCRIPTION: Workers installing sheet piling were not protected from falls around un-sloped excavation

KEY LEARNINGS:Colonial has not traditionally required fall protection at top of an un-sloped excavation. When hazard was recognized the contractor did not exercise Stop Work Authority.

KEY TAKEAWAYS:Colonial is working to address fall protection in cases like this. If there is ever any doubt about the safety of an activity, stop the work immediately until it is resolved. Better safe than sorry.

Near Miss Report

Fall Protection during Trenching and Excavation Activities

Additional information for different fall protection options:1. https://www.engineeredfallprotection.com/products/545/301/fall-protection/roof-fall-

protection/roof-anchors/dbi-sala-freestanding-deadweight-anchor-model-21001852. https://www.shoringsolutions.com/fall-protection.php3. https://www.grainger.com/category/guardrails/fall-protection/safety/ecatalog/N-

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Modular Guard Rails Modular Guard Rails Post

Personnel working at the edge of un-sloped excavations 4 feet or greater in depth, shall be protected from falling by guardrail system or another fall protection control (i.e., controlled access zone min. 6’ away from the edge , fall restraint or lastly from arrest system with proper anchor points). Properly-sloped excavations typically do not require fall protection.