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Crews Installing Guardrail in Carroll, Frederick and Howard Counties

(October 4, 2017) – The Maryland Department of Transportation State Highway Administration (MDOT SHA) continues to improve safety along Maryland roadways. MDOT SHA is beginning a $3.4 million project to upgrade existing and install new guardrail in several locations across Carroll, Howard and Frederick counties. Each corridor will take up to one month to complete. 

Crews will replace guardrail in the following locations:
Carroll County

Frederick County

Howard County

Motorists should expect daytime singe lane closures between 9 a.m. and 3 p.m.  and 7 p.m. until 5 a.m. Sunday nights until Friday mornings. MDOT SHA’s contractor, Guardrails Etc., Inc. of Baltimore, will use cones, barrels and flaggers to guide motorists through the work zones.  
MDOT SHA is completing the work through an area-wide contract. This approach allows engineers flexibility to address guardrail in several locations at the same time.
Maryland drivers can also know before they go by calling 511 or visiting for live traffic updates, including construction delays and lane closures and view e-Road Ready 2017 for an interactive listing of all major highway projects. Those who have further questions may call the MDOT SHA District 7 Office at 301-624-8100, toll-free at 1-800-635-5119 or send email to
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