Road maintenance will mean shoulder or median lane closures on several Gwinnett County highways this week.

The Georgia Department of Transportation will be repairing damaged guardrails on Ga. 8 and Ga. 20 and repairing shoulder lanes on Ga. 20. The department also will be mowing along I-985, Ga. 13, Ga. 316 and Ga. 20.

GDOT advises motorists to slow down in these and other work zones.