St. Charles County Transportation Plan 2030 - East-West Gateway ...

U.S. 67 is a four-lane expressway that connects Alton, Illinois, through St. Charles County across
the Missouri River, into northern St. Louis County, a distance of about 4.1 miles. It carries about
28,300 vehicles each day and has experienced a slight decline of about 9 percent since 2000.
Rt. 79 is a four-lane divide road for 1.5 miles from I-70 north through an industrial area past the Salt
River Rd./Pearl Dr. diamond interchange. From there it becomes a two-lane principal arterial road
for 10.4 miles to Lincoln County. It handles about 22,700 north of I-70 and 13,300 at Lincoln
County. It experienced an increase from 1990 to 2000 of about 11 percent and 9 percent since 2000.
Rt. 94 is the longest road in St. Charles County running from U.S. 67 at West Alton to Warren
County, approximately 58 miles. Along this length it changes from a two-lane rural road to city
streets, to a four-lane expressway, and back to a two-lane rural road. In the north part of the County
it handled about 2,700 vehicles a day. It experienced a dramatic increase between 1990 and 2000
of 100 percent and now has leveled off. Through the City of St. Charles it handled about 8,100 on
Second St. near the County Government Center and about 23,500 on First Capitol Dr. west of
Fifth St. South of I-70 it becomes a six-lane expressway to the north junction of Rt. 364 at Muegge
Rd. From just north of Harvester Rd. it continues south to I-64. South of Harvester Rd. it handled
about 39,000 in 1990 and 40,000 in 2000. It now carries about the same at 42,700. From
Jungermann Rd. south to Mid Rivers Mall Dr. traffic has increased sizeably with continued growth
of new homes and commercial development both east and west of the road. From Mid Rivers Mall
Dr. south to I-64 new development has grown even at a faster rate and traffic volumes have jumped
from 18,000 in 1990 to 30,000 in 2000, an increase of 67 percent. This central part of Rt. 94 from
Harvester Rd. to I-64 has experienced the highest increase with an average of about 50 percent from
1990 to 2000 and more than 30 percent since then. The rural part of Rt. 94 from I-64 west toward
Warren County handled about 10,500 just south of I-64 and 2,900 near Augusta. This was a
substantial increase since 1990 and just a slight increase since then.
Rt. 364 was opened to traffic in December 2003 from Bennington Ln. in St. Louis County to Rt. 94,
a distance of about 7.5 miles. It has ten lanes across the Missouri River and presently carries about
50,000 vehicles a day. In St. Charles County it drops a lane in each direction at Rt. 94, becoming
eight lanes from Muegge Rd. to just north of Harvester Rd. where it presently ends.
Rt. 370 has six lanes from I-270 in St. Louis County to I-70 near Mid Rivers Mall Dr., a distance
of 14.0 miles. It handled about 57,000 vehicles per day with the highest volumes around the Elm
St. interchange. Traffic has increased on this road about 4 percent since 2000.
Rt. K is a five-lane principal arterial road that runs from I-70 to I-64, about 6.4 miles. It handled
about 15,600 in 1990 just south of I-70 but jumped to 20,000 in 2000. By 2004 volumes had grown
rapidly and it now carries about 51,000 vehicles a day as commercial and residential development
in this corridor grew rapidly. Around Rt. N traffic grew from 10,000 in 1990 to 17,500 in 2000 and
it now carries better than 30,000. Just north of I-64 traffic volumes more than doubled from 1990
to 2004 going from about 6,500 to almost 20,000. Growth all along this road and especially in the
southern part is quite substantial and traffic volumes continue to climb rapidly.
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