Neenah Foundry has developed the new InfraLOCK Release, which incorporates ABLOY high security locks, to prevent manhole lids from dislodging during explosive events by safely releasing pressure while securing underground critical infrastructure.

As underground electrical infrastructure ages, the potential for fires or other gaseous build-up that result in manhole covers explosions continues to occur in communities large and small.

Sometimes the temperature and pressure in manholes escalates to the point where the manhole cover is launched into the air, often resulting in injuries and property damage in the immediate vicinity surrounding the manhole.

Since 2021, Neenah Foundry’s InfraLOCK has incorporated locks manufactured by ABLOY as part of high security manhole locking systems to protect underground infrastructure. 

ALCEA is the recently introduced critical infrastructure security solutions brand of ASSA ABLOY Global Solutions and represents ABLOY technologies in North America.

Neenah Foundry has manufactured American-made, infrastructure products for municipal, utility and construction applications for over 150 years.

Protecting critical infrastructure

According to ALCEA, the new drop-in replacement manhole cover for utilities, sewer systems and underground utility systems is designed to release built up pressure without dislodging from the frame and includes an ultra-strong locking system to secure access.

“InfraLOCK offers outstanding benefits of security and now added safety,” remarked Tyler Davis, Product Manager for Wisconsin-based Neenah Foundry.

“It’s a versatile product that can be used for many different applications, ranging from water mains and sewer systems to other underground utilities in critical infrastructure sectors.

“Integrating the weather resistant ABLOY PL340 high security lock adds an important layer of access control these customers demand.”

Physical security

“There is a great deal of interest in this secure manhole solution from utilities, data centers, public works and telecommunications companies,” said Jerry Burhans, Managing Director of Texas-based ALCEA.

“Utilities in the US spend $1.2 billion annually on physical security measures, so we follow the voice of our customers and evolve our solutions portfolio with innovations like InfraLOCK Release.”