During a major rain or tidal event, the water pressure can be powerful enough to force up and dislodge a manhole cover. This creates a hazard for both motorists and pedestrians. The STORMSURGE Access Assembly solves this problem by allowing water to flow. During a storm surge or backflow event, the cover can lift up to 16°, enabling water to flow out and relieve the pressure. The locking arm and hinge restrain the cover and allow it to properly seat itself after the event. Made in the USA, it is traffic rated and exceeds the 40,000-lb proof loading requirements of AASHTO-M-306.
Infrastructure
2018 APWA PWX
