It could take several months to repair four cranes at the Port of Charleston’s Wando Welch Terminal, which were damaged during a fierce thunderstorm Saturday, the State Ports Authority said.

One of the terminal’s super-post-Panamax cranes was blown down the dock around 6:20 p.m. Saturday, during what the SPA termed “an unexpected microburst of about 70 mph” wind. The rail-mounted crane did not tip over, but struck a slightly smaller crane, and two more were damaged in a chain-reaction crash.

The cranes were unoccupied, and no one was injured. Also at the terminal, 74 metal shipping containers, 19 of which were loaded with various cargo, were damaged.

An initial estimate from the SPA anticipates it could take from one to three months to put the cranes back in operation, depending on the damage and availability of parts.

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“My understanding is that it will not hurt our ability to berth ships at the dock,” said SPA spokeswoman Allison Skipper. “It will, unfortunately, mean we have 7 cranes to work with instead of 11.”

Read more in Tuesday’s editions of The Post and Courier. Follow David Slade on Twitter @DSladeNews.