at I-40 and the SR-840 interchange in Dickson County.
The purpose of 840 is to provide economic
development opportunities in areas around Middle Tennessee. A positive by-product of the four-lane controlled access highway is
reducing traffic on the urban Nashville interstate highway system.
State Route 840 is paid for with state
funds from highway user fees, which include gas and diesel taxes
and license plate renewal fees. These highway user fees, paid for
by motorists in Tennessee, are dedicated to highway purposes.
By state law, that means they cannot be used for other state
Route 840 was proposed by Governor Lamar Alexander and approved by
the Tennessee General Assembly in 1986 as part of the Better Roads
Program. Planning work started in 1988, with the first actual
construction in 1991.
leg between I-24 in Rutherford County and I-65 in Williamson
County is 23.8 miles long. More
than 47 miles of SR-840 are now open to traffic between I-40 in
Wilson County and I-65 south of Franklin. Of the 31 remaining
miles which encompasses the 3rd leg, almost 23 miles are
already under contract. Nearly 11 miles in the middle of the 3rd
leg (I-65 to I-40 at Dickson) are in right-of-way purchase, but
are not under
total of $403 million dollars has been obligated to date on the
first leg of SR-840 opened in November of 1996 between I-40 and
I-24 and is 23.2 miles long.
Wilson County-13 miles
completed, the southern loop will be 78 miles in length.
southern loop is expected to cost a total of $490 million.
newly completed portion of SR-840 near Bending Chestnut Road
in Williamson County meets a section still under construction, fall 2002.