Infrastructure

Kinzua Bridge

The Kinzua Bridge or the Kinzua Viaduct was a railroad trestle that spanned Kinzua Creek in McKean County in the U.S. state of Pennsylvania. The bridge was 301 feet (92 m) tall and 2,052 feet (625 m) long. Most of its structure collapsed during a tornado in July 2003. Billed as the “Eighth Wonder of

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Moffat Tunnel

The Moffat Tunnel is a railroad and water tunnel that cuts through the Continental Divide in north-central Colorado. Named after Colorado railroad pioneer David Moffat, the tunnel’s first official railroad traffic passed through in February 1928. The Moffat Tunnel finally provided Denver with a western link through the Continental Divide, as both Cheyenne, Wyoming, to

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What is a substation and how does it work?

A substation is a vital component of an electrical power system, serving as a bridge between high-voltage transmission lines and lower-voltage distribution networks. Its primary function is to transform electricity from one voltage level to another, ensuring efficient transmission and distribution of power to end-users. Substations also play a crucial role in controlling and protecting

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Pedestrian Hybrid Beacons

A Pedestrian Hybrid Beacon (PHB), also known as a High-Intensity Activated Crosswalk (HAWK) beacon, is a traffic control device used to facilitate safe pedestrian crossings at midblock locations or uncontrolled intersections. It is designed to provide pedestrians with a protected crossing while minimizing traffic delays when there is low pedestrian activity. How They Work PHBs

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