Stopping an Errant Fire Hydrant with Excessive Overflow: A Comprehensive Guide

Fire hydrants are essential components of the emergency water supply system. However, when a fire hydrant experiences an excessive overflow due to high pressure or malfunction, it can lead to significant safety concerns. This guide will walk you through the steps firefighters take to address this issue effectively and safely.

Identify the Problem

The first crucial step in managing an errant fire hydrant with excessive overflow is to identify the root cause. Firefighters will systematically assess whether the hydrant is damaged or if the problem lies with the water pressure. By pinpointing the exact issue, firefighters can determine the most effective course of action.

Locate the Shut-Off Valve

Most fire hydrants are equipped with a shut-off valve located near the hydrant. This valve is designed to control the water flow to the hydrant. Firefighters will locate this valve and prepare to close it. Not every hydrant has a shut-off valve in the street, but they often have one nearby in the underground waterline/piping.

Close the Valve

To stop the water flow, firefighters will use a special tool, such as a hydrant wrench, to turn the shut-off valve. Closing this valve will help reduce or eliminate the overflow, ensuring that the water supply is contained and that the surrounding area is not flooded.

Assess the Hydrant

After closing the shut-off valve, firefighters will inspect the hydrant for any visible damage or leaks. This thorough assessment ensures that the water supply can be safely rerouted and that the hydrant is in proper working condition.

Notify Utilities

If the overflow is significant or there is ongoing damage, firefighters will notify the local water utility or maintenance team. These professionals can address the issue more comprehensively and ensure that the hydrant is repaired to prevent future overflow incidents.

Public Safety Measures

During the overflow event, if the hydrant poses a hazard, such as flooding streets or causing damage, firefighters will take additional measures to ensure public safety. This may include redirecting traffic, notifying local residents of the situation, and setting up barriers to prevent further damage.

Likewise, in areas where hydrants have breakable links under their casing, which can prevent the hydrant from shutting off if struck by a car, it is important to note that not every hydrant is equipped with a valve in the street. However, underground valves can be closed to stop water flow to the hydrant.

Conclusion: Proper steps must be taken to handle the situation effectively while minimizing disruption and hazards to the community. Understanding how and when to shut off a fire hydrant, along with the necessity of notifying the appropriate utility teams, can significantly impact the safety and efficiency during such incidents.