PowerSeat and Roller Sling used for bridge inspection in Puerto Rico

posted in: Case Studies, News, Working at height | 0

Market:
Working at height

Location:
Puente Atirantado la Plata de Naranjito, Puerto Rico

Project:
Multidisciplinary Engineered Bridge Inspection

Background:
As the only cable-stayed bridge in Puerto Rico, and first in the Caribbean, the Jesus Izcoa Moure Bridge crosses Rio la Plata between the cities of Naranjito and Toa Alta.

Task:
The north and south towers each have forty eight cables making up the fans for a combined ninety six cables which required inspecting at arm’s length.   The access plan needed to allow for effective ascents from the road deck, a manageable transition onto the cable, controlled descent traversing the cable, and an emergency response/rescue plan that could be initiated from the road deck.

Equipment:
Harken Industrial’s combination of the Gas PowerSeat and RollerSlings were used as the primary hardware on the inspection.

The PowerSeat was used as a fixed point winch/haul system, anchored at road deck, making an automated ascending system that allows for an easy transition into lowering or descent without any additional equipment.   With the PowerSeat’s precision controls, an operator could easily position an inspector within inches of transition locations.  Having the PowerSeat set-up in this manner gave the rigging/standby rescue team a constant line of sight of everyone working at height, enhancing safety.

The Roller Sling was the perfect tool for the job at hand.  The slings made for an easy transition onto the cables and for a controlled descent of a traverse along a cable, the slings kept the engineers in the perfect position for an effective inspection.

Needless to say the team of engineers were very happy with the Harken Industrial safety enhancing solutions for working at height.

Puerto rico bridge horizontal_800