Least Resistance Training Concepts
(LRTC)

Volunteers Training for Emergencies

  LRTC Technical Large Animal Rescue Team
Technical Information

WIRE CRIMPING and HOG RING TOOLS

Updated June 13, 2025

This information sheet is primarily intended for persons associated with or working with the LRTC Technical Large Animal Rescue Team, however the information may be useful to other entites who may wish to similarly equip their own technical large animal rescue teams, and for agencies that may be present at incidents where such operations are warranted.

  Purpose of this Technical Information Sheet

This information sheet is intended to provide basic rescue concepts in order to prevent civilian and first responder injuries or deaths as could occur when livestock are able to pass through openings in fencing into active traffic, and to successfully resolve the incident without causing further injury or distress. The technical elements described are intended to be undertaken in compliance with general response procedures when operations are proximate to active traffic.

Critical safety infrastructure involves highway fencing. Breaches in fencing can occur due to natural causes (i.e., storms, mudslides), from accidental vehicle damage and from intentional vandalism. On rare occasions Highway Patrol will direct responders to open fencing to expedite the removal of an agitated horse or bovine from active traffic when the state police are informed that NDOT cannot field a response.

A section of fence cut by an off-roader alongside I-80 near Exit 43.

Upon removal of livestock or when a breach in highway fencing is observed and NDOT is not available to respond to make repairs, reasonable attempts should be made to secure the opening following standard fence repair protocols to the greatest extent practicable, with the repair being flagged and NDOT being notified to later inspect and modify the repairs if appropriate.

All Fence and Gate repair kits have been supplied with compression tools and ferrules for splicing both barbed and barbless wire. Compression splices can produce repairs that result in wire tension more consistent with what was present before the breach, as compared with eye-loop splices.

Crimping tool and ferrules found in the Fence and Gate Repair kits.
When wire can be sufficiently stretched, a ferrule can make a clean splice.
When ends can't meet without overtensioning the wire, a small piece can be inserted in the gap.
An automatic feeding hog ring tool for reattaching small animal wire fence to main strands.
Hog rings holding small animal fencing in a damaged section.

In addition, any damaged, faulty or missing T-post clips should be replaced with new.


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The training information presented in these information sheets and guides is offered for illustrative and volunteer refresher purposes only. It is not a substitute for actual hands-on training.

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