Evening star. [volume] (Washington, D.C.) 1854-1972, 1956-12-23

would generally" keep out OF
the CIV parkway line, and that
1t would be possible" to con-
struct both roads. The likelihood
of construction of two such
parallel freeways. however, APP
pears highly questionable.
Park Views Sought
The District. in fact, has asked
park officials whether they would
object to the CIV parkway be-
tween Chain Bridge and Cabin
John (where Route $40 will be
built being designated as part
OF the interstate system" The
Park Service. city officials said
has not replied formally. but the
service probably will resist the
idea. One main reason is that
interstate" roads must permit
truck traffic. and the park men
do not like trucks on their park
WAYS.
Another key factor in the de-
cision will be the views of Mary
land, since that State must build
about four miles of the express
way connection from any Dis
trict line point to Route $40, un-
less the CIV parkway could serve
as the approved Federal route
Mr., Robertson stressed that
the routes proposed by the
Clarkson firm are general ones
and that their effects on specific
property cannot be told until
further, detailed studies are
made.
Construction time of the new
expressway. in addition, will de-
pend mainly on the amount OF
Federal highway aid which Con-
gress makes available after 1859
Federal aid has been determined
to that date. but not beyond. In
any event. the construction
would not be before 1860 and
probably would be tied to actual
construction of the inner loor
and the Route 240 extension
southwark.
Traffic Volumes Estimated
The Clarkson firm. in addition
to cost estimates. figured mile
age Of each route within the Dis.
triet and estimated the probably
traffic volumes that would use
each by the year 1880.
The expresSway would be q
divided road with between -four
and eight lanes. depending upon
the traffic volumes that would
Use various parts OF it.
Following are details of the
four routes under study:
ROUTE A
From the District Maryland
line near the Potomac River tc
the inner loop near Washington
Circle at Twenty-third and Penn.
sylvania avenue NV. Cost:
1852 million. Distance: AZ
miles. Desired traffic use ir
1880: $4,000 "vehicle-miles'
daily (the number of vehicle.
times the number of miles trav-
eled on the route.
From the District line neal
the river. cross under the Balti.
more g. Ohio Railroad line just
south Of the Dalecarlia filtration
plant. Expressway would be or
the hillside and plateau" north
OF Canal road. and would ust
part Of the existing Cabin Johr
streetcar right-of-way. Movinl
down river, overpass Arizona av.
enue and Reservoir road anC
provide connections with pro.
posed parkway to north through
Glover-Archbold Park.
Southeasterly from Glover,
Archbold. the expressway woulC
have ramps to and from N
street NV. Two elevated road.
ways from the expressway woulc
overpass Canal road and thu
Chesapeake g. Ohio Canal tt
connect with Key Bridge.
East of Key Bridge. a twin
tpur-lane elevated freeway woulc
be built just south of the exist.
ing Whitehurst freeway to serve
eastbound traffic. The existin,
freeway would serve westbounC
traffic. The new twin" freewa,
would be built in the next arci
OF Key Bridge south of the pres
ent freeay." 1t would requirl
elimination of some buildings
such as the D. c. Transit CO
power plant. the modification O
other buildings and the reloca
ton Of some; but most Of tn
industry could continue to op
crate"
At the eastern end Of the ney
"twin" freeway, traffic woul,
connect with K and Twenty
seventh streets NV, and witt
both north and south to tn
Inner loop" expressway a
Waahinton circle.
ROUTE B
From District-Maryland lin
near the Potomac River to tn
inner loop near Massachusetts
avenue and Sheridan circle
Route begins at same point a
Route A and follows same line t
Chain Bridge road. Then. instea,
Of following Canal road south
eastward, moves east over Mac
Arthur boulevard, under Foxhsc
road, under Wisconsin. acros
Dumbarton Oaks Park and owe
Rock Greek Park. under Massa
ohusetts avenue at Sheridan Cir
Gle to make full connections wit
the inner loop just west OF Con
necticut avenue.
The expressway would max
full connections with Wisconsi
avenue but would not connec
with Foxhall road. Westboun
trafiic could get on the express
way just west Of Florida avenue
Eastbound traffic also could ge
of the expressway at Sherida
Circle.
The traffic studies for both tn
river routes. the Clarkson FRI