A sign on State Road 135 South says it will be closed on or after June 12.

Exactly when work will start isn’t clear yet, but it’ll be sometime in the next week to week and a half and last for 30 days, Indiana Department of Transportation spokesman Harry Maginity said.

A culvert will be replaced over a branch of Hamilton Creek east of Christianburg Road. It’s near the spot locals call Spurgeon’s Corner — where 135 South takes a 90-degree turn and meets Becks Grove and Bob Allen roads, Brown County Highway Superintendent Mike Magner said.

INDOT is working on three projects on 135 South this summer with three different contractors, Maginity said. The trickiness of predicting dates is that one bridge has to be open before another can close, he said.

Sometime after July 4, a bridge on 135 South over Hamilton Creek will be closed in the Story area for 60 days, Maginity said. The work site will be between the highway junctions with Hamilton Creek and Christianburg roads, so Hamilton Creek will be usable as a detour, Magner said.

A project on 135 South in Jackson County, about 5 miles north of the junction with U.S. 50, was to wrap up today. Detour signs for it likely wouldn’t come down until early next week, Maginity said.