The speed limit on I-70 is now 70 miles per hour. The increased speed limit went into effect yesterday. The Maryland State Highway Administration crews will be adding new signage to notify drivers along the 31 mile stretch from US 29 in Howard County to MD 144 in Frederick and the 45 mile stretch from MD 180 in Frederick County to the Washington County/Pennsylvania line. Meanwhile, two other portions of I-70 will remain posted at 65 mph: the beginning of I-70 at I-695 to US 29 in Howard County and MD 144 to MD 180 in Frederick County.
