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mid -19th century engineering accom-
<br />plishment in the county. Natural and
<br />cultural features and reasonable limits
<br />were used to define the National
<br />Register boundaries. Verbal bound-
<br />ary description: The nominated
<br />property is 250 feet in length, east to
<br />west, and 236 feet in width, north to
<br />south, encompassing the bridge at the
<br />center, and including the stone
<br />retaining walls at the west bank of the
<br />West Canada Creek. Proceeding
<br />clockwise, the boundary follows the
<br />east bank of the creek to a point 125
<br />feet south of the bridge, where it turns
<br />west to follow a line parallel with the
<br />bridge to the west bank of the creek.
<br />The boundary turns north at the west
<br />bank, where it follows stone retaining
<br />walls to a point 75 feet north of the
<br />bridge before turning east. The
<br />northern segment of the boundary
<br />parallels the bridge to the point where
<br />it intersects the eastern section of the
<br />boundary. Refer to the attached site
<br />plan. Boundary justification: The
<br />boundary has been established to
<br />isolate the bridge, its ancillary retain-
<br />ing walls, and its immediate setting
<br />from adjacent areas that are not
<br />directly associated with the history of
<br />the bridge.
<br />•a
<br />M
<br />Newport Stone Arch Bridge, Newport,
<br />New York. Sketch plan showing the
<br />property's National Register boundaries.
<br />Hanford B Reactor, Benton
<br />County, Washington, is a plutonium -
<br />production reactor that was con-
<br />structed during World War II as part
<br />of the Manhattan Project. Construc-
<br />tion of the reactor began in 1943 and
<br />the facility produced fissionable
<br />material for national defense until its
<br />deactivation in 1968. The B Reactor is
<br />housed inside the 105-B reactor
<br />containment building in the B/C Area
<br />of the Hanford Site. The containment
<br />building is surrounded by various
<br />support structures that are not
<br />included in this nomination. The
<br />Hanford B Reactor is significant for its
<br />association with nuclear power and
<br />the Manhattan Project: this reactor
<br />produced the plutonium used in the
<br />bomb dropped on Nagasaki. A
<br />cultural feature (the existing fence)
<br />was used to define the National
<br />Register boundary. Verbal boundary
<br />description: The Hanford B Reactor
<br />is located in the 1006 /C Area of the
<br />Hanford Site, .05 mile south of the
<br />Columbia River and 3.5 miles east of
<br />the point where Washington High-
<br />way 240 crosses the Columbia River at
<br />Vernita Bridge. The structure and
<br />adjoining land lie within a 650 -foot-
<br />square plot, the center point of which
<br />is at the above - referenced UTM
<br />coordinate. Boundary justification:
<br />The boundary includes the structure
<br />and space around it as currently
<br />defined by fencing.
<br />Lusk Water Tower, Lusk, Niobrara
<br />County, Wyoming, is a round water
<br />tank about 25 feet in diameter and
<br />about 25 feet high, supported by a
<br />wood column structure. The water
<br />tower is significant for its association
<br />with the Chicago and Northwestern
<br />Rail Line, a line of major importance
<br />in Wyoming's settlement. The water
<br />tower was originally located in the
<br />center of the town of Lusk, near the
<br />depot; the water tower was moved to
<br />its present location, north of the
<br />Chicago and Northwestern Rail Line,
<br />in 1919 when the depot was rebuilt in
<br />the center of town. The water tower
<br />property, enclosed by a chain -link
<br />fence, is less than 1/4 acre in size. The
<br />property is bordered by a mil line to
<br />the south, pasture to the west and
<br />east, and a residential rural subdivi-
<br />sion to the north. The move has had
<br />little effect on the historic integrity of
<br />the structure, as its new setting is
<br />associated with the rail line and
<br />reflects the continued development of
<br />the railroad and its function. The
<br />legal description of the parcel was
<br />used to define the National Register
<br />boundary. Verbal boundary descrip-
<br />tion: The 1982 Warranty Deed to the
<br />Niobrara County Historical Society
<br />states that the Lusk Water Tower site
<br />consists of 0.2 acres. This tract of land
<br />is in the B !/2 of Section 8, Township
<br />32 North, Range 63 West of the 6th
<br />P.M. USGS Lusk, Wyoming, Quad-
<br />rangle map, described as follows:
<br />From the 1/4 section corner on the east
<br />section line of Section 8, Township 32
<br />North, Range 63 West of the 6th P.M.
<br />along the 1/4 section line a distance of
<br />1,300 feet to point of beginning.
<br />Thence north 69 32' west, a distance of
<br />230 feet; thence south 53 02' east, a
<br />distance of 173 feet; thence south 69
<br />32' east, a distance of 94.5 feet; thence
<br />north 20 28' east, a distance of 50 feet;
<br />thence north 69 32' west, a distance of
<br />32.5 feet to the point of beginning.
<br />Containing 0.2 acres, more or less.
<br />Boundary justification: The bound-
<br />ary is. based on the legally recorded
<br />boundary lines that encompass the
<br />single parcel of land that is occupied
<br />by the water tower and its immediate
<br />surroundings. This represents the
<br />parcel owned and protected by the
<br />Niobrara County Historical Society.
<br />Lusk Water Tower, Lusk, Wyoming,
<br />(Richard Collier)
<br />43
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