Anchor portal

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An anchor portal or H-frame tower is a gantry structure supporting overhead power lines in a switchyard. Their static function is similar to a dead-end tower. Anchor portals are almost always steel-tube or steel-framework constructions.

Gallery

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  A simple H-frame anchor tower consisting of two poles and one horizontal crossarm, bearing similarity to the letter H
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  anchor pylon and anchor portal, 380kV
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  anchor gantry, 110kV
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  diagonal frame
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  Multi-level gantry tower
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  Gantry tower with road underneath

References

Wikimedia Commons has media related to Gantry towers.

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