Part II of the Cultural
Landscape Report (CLR) for Dumbarton Oaks Park addresses treatment alternatives for the
future management of the site. After conducting the historical and physical analysis
presented in Part I, the CLR team drew up a series of Management Issues, which were
then integrated in the development of three Treatment Alternatives: #1, Stabilizing
the Landscape; #2, Interpreting the Farrand Landscape; and #3, Reclaiming the Historic
Landscape. The alternatives outlined a range of options, from preservation of the park in
its current condition, to partial restoration/rehabilitation, to the full restoration of
Beatrix Farrand's design.The alternatives
are progressive in their degrees of recommended restoration for Dumbarton Oaks Park. The
first two alternatives could serve as steps in the phasing of the third alternative, full
restoration. The National Park Service recognizes that any of these alternatives will be a
long-term commitment and feels that it is important to make amends for having in the past
neglected to recognize the park's cultural significance.
Landscape Character Areas
During the landscape evaluation, seven landscape
character areas were identified in Dumbarton Oaks Park: Lovers' Lane, the Beech Grove,
the southern slope, the stream valley, the meadows, the northern woodland, and the
designed woodland. These character areas were determined by analysis of the physical
qualities of the landscape and of the design intent; analysis of the various research
materials; the existing integrity of the landscape features; and the relationships among
the areas. All of the character areas have suffered, to varying degrees, from the
encroachment of invasive plant material. Most importantly, these seven areas define the
landscape organization or spatial organization of Dumbarton Oaks Park. They serve as the
basis for structuring the Treatment Alternatives in Chapter 3 into discreet
areas for treatment.
LOVERS' LANE
Lovers' Lane originally a cobbled road, is owned by the
District of Columbia. It runs downhill from R Street between the eastern boundary of
Dumbarton Oaks Gardens and the western border of Montrose Park. On the western side of the
lane is a high stone retaining wall, running along the eastern boundary of the gardens,
which is topped by a wooden fence. At the base of this wall is a storm drain channel
possibly designed by Beatrix Farrand, made of slate slabs interrupted by low stone rills.
On its eastern side is a low, dry-laid stone wall in poor repair. A thick layer of asphalt
now covers the lane's cobbled surface. Trees and shrubs line the route, with the trees
forming a canopy overhead. Weeds grow in the stone gutter and along the eastern border. At
the foot of the hill to the west of the lane is the entrance to Dumbarton Oaks Park.
Farrand intended that Lovers' Lane be used primarily as a
service road for the park. However, with the closing of the connecting paths between the
upper gardens and the park, it has become the primary entrance into Dumbarton Oaks Park.
BEECH GROVE
At the foot of Lovers' Lane is a wooden gate hung between
stone piers. A path leads through this into the Beech Grove, the first section of the
route through Dumbarton Oaks Park. A line of American beech trees runs along the northern
edge of a wide dirt path, which formerly followed a narrower, more curving course. Along
the southern edge is a retaining wall of large rounded stones, built during the Farrand
era. Farrand augmented the natural grove of beeches with an understory of mountain laurel,
which no longer exists.
The beech trees once formed a tunnel-like enclosure over
the path, and the undulating massing of mountain laurel helped define the path edge. The
play of light and shade through the trees, and the formal quality of the progression of
smooth gray trunks, gave this entry its distinctive character.
SOUTHERN SLOPE
Farrand treated this hillside, which extends down from
Dumbarton Oaks Gardens to the stream valley, as a transitional area between the upper and
lower gardens. Four paths ran down the slope and connected the two properties. Certain
features, including lines of trees and an open area, extended across the boundary. Farrand
created a variety of groves, shrub massings, and clearings on the slope. She built new
structures--such as Forsythia Arch and the Forsythia Steps--and made additions to others,
including the spring grotto and the pebble stream.
The southern slope acts as a backdrop to views from the
stream valley and the meadows on the north. It continues into the western reaches of the
park, where Farrand allowed woods to grow and thus screen the intrusive development along
Wisconsin Avenue and other adjoining streets.
STREAM VALLEY
The stream valley is the focal character area of the
Dumbarton Oaks Park design. A small tributary of Rock Creek flows through the wooded
valley between hillsides on the north and south, the latter leading up to Dumbarton Oaks
Gardens. Along this stream Farrand constructed a serpentine footpath, the beginning of her
circular walk through the park. The path, bordered by stones, leads through a series of
spaces which are defined by plantings of trees, shrubs, and perennials. A second path runs
for a shorter distance along the northern side of the stream. In the stream channel,
Farrand constructed a series of stone dams over which the water flows, forming waterfalls
and pools. Various structures, pools, or benches were the focal points of the enclosed
spaces or "garden rooms" along the stream path. The main, southern route of the
path crosses the stream at Clapper Bridge Falls, then runs by its banks through a wilder
area on the border of the fifth meadow before entering the designed woodland. In this
upper section of the stream are found two more groupings of dams and a small ornamental
island. The planting scheme changes in the upper stream valley: shrub massings replace
herbaceous groupings, which are then replaced by the trees of the designed woodland.
The design intent of the valley is still evident, though
there has been extensive deterioration: the stream channel has silted up, the stream banks
have been eroded, and many of the original plantings have been lost. Most of the dams and
structures have suffered extensive damage from stormwater overflow.
DESIGNED WOODLAND
After leaving the stream valley, the path enters a woodland
of deciduous trees which Farrand designed as the final section of the journey through
Dumbarton Oaks. She planted shrubs interspersed with massings of perennials along the path
to provide a sense of enclosure. A social trail runs from the path up to a western branch
of Whitehaven Street. A worn path (the only one of three originally grassed paths which
remains) leads from the stream path through the woodland and back to the fifth meadow on
the east.
The designed woodland has been damaged by invasive vines,
especially on the edges, but the majority of the forest is in good condition.
MEADOWS
Across the northern hillside of the stream valley,
historically known as "Clifton Hill," Farrand created a series of five meadows,
which are separated by lines of trees and increase in area and extent from east to west.
An old farm track runs along the foot of the hill. The return journey of the circular walk
leads east through the meadows and along the brow of Clifton Hill, just below the border
of the northern woodland. The meadows were planted with grasses and drifts of perennials
and bulbs, which extended in swaths of color across the face of the hill. The fifth meadow
was the only one to historically lack a defined path in its top section; the three grassed
paths of the designed woodland spilled out and merged with the meadow grasses, and
visitors were meant to make their own way between the woodland and the Clifton Hill walk
or the farm track. The northern woodland has encroached on the northern border of the
meadows, reducing their original size.
NORTHERN WOODLAND
The northern woodland is a dense fringe of trees growing
along the top of the Clifton Hill slope. Farrand allowed this natural woodland to develop
as a backdrop for the park and the upper gardens. Small trees and shrubs, such as dogwood
and Scotch broom, formed a transitional border between the woodland and meadows. This
border has deteriorated and is now largely composed of tree-of-heaven and other weedy
plants. The farm track leads up into the northern woodland. A social trail has been formed
which connects the farm track to an informal park entrance on the eastern branch of
Whitehaven Street.