WASHINGTON — The bridge on Blackville Road (Route 109) near Sabbaday Lane No. 2 is scheduled to be replaced by the state Department of Transportation beginning this spring. Completion is anticipated for the fall.

The replacement of the bridge over Mallory Brook is necessary due to the degree of structural deficiencies, according to Theodore Nezames, DOT director of bridges. The bridge is also hydraulically inadequate due to the openings of the existing pipes not being large enough to carry current storm water, he said.

The road is projected to be closed for two weeks during construction. The geometry of the road will not have a major change. The road will be slightly moved to the south, improving sight line and modifying the curves and width of the road, Nezames said.

A variance was granted at the end of January by the Washington Zoning Board of Appeals for minimum lot size required for the project.