Current through Register Vol. 43, No. 39, September 26, 2024
The plans required by
K.S.A.
82a-302, and amendments thereto, to
construct, repair, or modify a dam shall include sufficient views to show all
features in three dimensions and in sufficient detail to instruct a competent
contractor to construct, repair, or modify the dam by viewing the plans and
specifications. All plans with multiple pages shall include an index describing
the location of required views within the plans. The views and maps specified
in this regulation shall be shown. Specific details shall be listed under the
view that is typically most appropriate, but they may be displayed on another
view to improve the legibility of the plans if sufficient detail is provided in
the plans to describe each feature in three dimensions. The required plans
shall include the following:
(a) Plan
views of the dam and dam site, which shall include both abutments of the dam,
the area downstream to the point where the auxiliary spillway or service
spillway flows enter the receiving channel, and the area upstream of the
upstream toe of the dam to where the borrow area will be permitted. All
elevations shown on plans shall be referenced to the same datum as the
benchmarks described on the plans. The following details shall be shown, if
applicable:
(1) The location of the axis of
the dam, showing stationing and top width limits;
(2) the toe of the upstream and downstream
slopes;
(3) the location of the
centerline and the limits of each open-channel spillway;
(4) the location of the primary spillway and
any stilling basin;
(5) the
location of each berm;
(6) the
location of slope protection;
(7)
the location of borings, test holes, and test pits;
(8) the location of intakes, outlets, valves,
and valve wells;
(9) the location,
description, and elevation of each benchmark;
(10) the location, description, and details
of all foundation drains;
(11) the
location and limits of each borrow area; and
(12) the location and topography of the area
where the auxiliary spillway discharge returns to the receiving stream;
(b) a map of the
drainage pattern above and below the dam site drawn to an appropriate scale.
The map shall show the following:
(1) The
location of the watercourse across which the dam is to be built and the point
where the centerline of the dam crosses the centerline of the stream specified
in latitude and longitude, or in feet north and west of the southeast corner of
the section;
(2) the location of
the dam and the outline of the reservoir;
(3) the boundary of the watershed, shown by a
line enclosing the entire area that will drain into the reservoir;
(4) section lines, with sections properly
identified; and
(5) the size of
the drainage area in acres or square miles;
(c) a topographic map of the dam site and
reservoir area, which shall be shown to a scale that provides sufficient detail
to clearly show the required features and to locate them in the field, but in
no case is less than 1 to 3,600. The elevation of each contour shall be clearly
noted on the map. The following details shall be shown:
(1) The location of the dam; and
(2) the following topography:
(A) The contours at two-foot intervals. For
dams more than 20 feet in height, contours may be spaced at greater intervals,
but the interval shall not exceed four feet;
(B) the contour equivalent to the elevation
of the lowest uncontrolled spillway inlet, not including any low-flow
augmentation works;
(C) the
contour equivalent to the maximum water surface reached during the design
storm;
(D) the contour equivalent
to the elevation of the top of the dam;
(E) construction ingress and egress routes to
the dam and reservoir;
(F) the
name and address of each person owning any of the following:
(i) The land on which the dam and its
appurtenances, including the auxiliary spillway or service spillway, down to
the location where the spillway discharges back to the receiving stream, will
be constructed;
(ii) ingress and
egress routes to the dam and reservoir;
(iii) the reservoir site up to the top of the
dam elevation; and
(iv) the borrow
areas if they are located outside the reservoir site;
(G) if the reservoir area is divided between
more than one landowner, the property lines, which shall be shown on the
topographic map of the reservoir;
(H) roads, railroads, pipeline crossings, and
any other prominent features in the vicinity;
(I) the boundary line for each easement; and
(J) the limits of each borrow
area;
(d)
the cross-section view of the valley at the dam site, which shall be shown
along the centerline of the dam with the same stationing as that used on the
plan view. The following shall be shown:
(1)
The elevation to which the top of the dam is to be maintained and the elevation
to which the dam is to be initially constructed in order to provide an adequate
settlement allowance;
(2) the
location and elevation of the auxiliary spillway or service spillway at the
centerline of the dam;
(3) the
original surface of the ground, including the streambed, up to the elevation of
the top of the dam;
(4) the
proposed elevations of the bottom of the cutoff trench; and
(5) the location of all test holes and the
materials encountered in the test holes;
(e) a cross-section view perpendicular to the
centerline of the dam at the lowest point on the downstream toe extending to
the limits of the fill being placed. If the cross section is variable, a
typical section shall be shown for each reach of similar cross section with a
proper description of the reach by stationing. Additional typical cross
sections along the centerline of the primary spillway and the centerline of any
other outlets shall be shown. Cross sections of the dam shall include the
following:
(1) The elevations of the
shoulders and centerline of the dam and the width of the top of the dam;
(2) the elevation of the top of
any berm, the elevation of the outside shoulder of any berm, and the top width
of any berm;
(3) the slopes of
upstream and downstream faces of the dam;
(4) the elevation, location, and type of
slope protection;
(5) the zones of
the embankment;
(6) the dimensions
to which the dam is to be constructed to provide an adequate allowance for
settlement;
(7) the elevation,
location, and dimensions of the planned cutoff trench; and
(8) the elevation of the downstream toe of
the dam at its lowest point;
(f) the following information concerning each
openchannel spillway:
(1) A plan view showing
the location and stationing along the centerline of the spillway, together with
the location of the control section;
(2) cross sections showing side slopes and
dimensions of the spillway, and the original surface of the ground up to the
point where the spillway sides intersect the original ground surface;
(3) a profile along the centerline
of the spillway, extending from the point upstream where the profile of the
spillway intersects natural ground through the control section to the streambed
below the dam. The stationing on the profile shall correspond to that on the
plan view. The station and elevation of the breaks in the grade of the spillway
shall be shown. This profile shall show the existing ground elevation, proposed
grade of the bottom of the spillway, elevation of slope protection on the side
slopes, and geologic logs of the borings required in the auxiliary spillway or
service spillway by K.A.R. 5-40-40, superimposed on the profile through which
the spillway is excavated; and
(4)
the data necessary to stake out any curves;
(g) the following information concerning the
primary spillway:
(1) The profile along the
centerline of the spillway, extending from the intake to the outlet, showing
the size, dimensions, and locations of seepage control features. This profile
shall show existing ground elevations and the proposed grade of the spillway;
(2) the plan, profile, and
cross-section views of the stilling basin, primary spillway supports, and other
features;
(3) the geologic logs of
the borings done in the vicinity of the primary spillway shall be superimposed
on the profile;
(4) the location
and type of all bedding materials;
(5) a table of pipe grades for all concrete
pipes; and
(6) conduit joint
details;
(h) the number
of acres enclosed by each contour within the reservoir area and the total
storage capacity of the reservoir in acre-feet at the elevation of each
contour, which shall be determined and tabulated on the plan. The data shall be
compiled for all contours in the reservoir up to the elevation of the top of
the dam. Computations of capacity shall be based on the natural topography of
the reservoir basin but may include the volume of any excavation in the
reservoir made during construction of the dam;
(i) a curve or table showing the discharge
capacities, in cubic feet per second, of all spillways through a range of
surface water elevations from the lowest spillway inlet elevation to the top of
the dam elevation, which shall be developed and shown on the plans or in the
design report;
(j) the following
information, which shall be shown on the plans in plan view, profile, and cross
section:
(1) Drain details, including
foundation drains;
(2) permanent
erosion control protection, including riprap; and
(3) details of stilling basins, outlets, and
other appurtenant structures; and
(k) the following information, which shall be
shown on either the plans or the specifications:
(1) A table of gradation for each drain; and
(2) a table of gradation of the
bedding of the riprap.
