SAN JOSE (CBS SF) — An accident involving a boat that fell off a trailer on northbound U.S. 101 near the Hellyer Avenue exit was cleared after closing the two right lanes for nearly two hours, according to authorities.

The Twitter account posted about the crash just before 2:30 p.m.

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CHP reported that there was a severe traffic alert after a traffic collision on northbound US-101 south of Hellyer Avenue in San Jose.

KCBS Traffic later reported that the accident involved a boat that fell off a trailer and landed on its side. The two right lanes were blocked as well as the Hellyer Avenue offramp.

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Motorists were advised to expect delays and to use alternate routes to avoid the area as the accident was cleared. The Twitter account posted that all lanes were reopened by 4:16 p.m.