Update:ST JOSEPH PD: H highway in Buchanan County one mile east of Platte River is now back open for traffic.

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Drivers are being urged to avoid H Highway in Buchanan County due to a semi blocking the roadway.

Around 7:20 p.m. Monday authorities sent out a Nixle message to let the public know H Highway in Buchanan County about 1 mile east of Platte River is blocked by a semi.

When we learn more we will update this story.