Before secondary approval may be granted, the plat of the subdivision shall conform to the following standards of improvements which may be installed under the supervision of an inspector whose qualifications meet the approval Executive Director, if deemed necessary. The cost of the inspection shall be borne by the subdivider/owner.
A. Monuments and markers and subdivision benchmarks. Monuments shall be placed so that the center of the bar or marked point shall coincide exactly with the intersection of lines to be marked and shall be set so that the top of the monument is level with the finished grade.
1. Monuments shall be set:
a. At the intersection of all lines forming angles in the boundary of the subdivision;
b. At the beginning and ending of all curves along street right-of-way lines;
c. At the intersection of street right- of-way lines;
d. At those points falling in a paved roadway. In this instance, they may be represented by road nails or railroad spikes, provide a witness monument is set.
e. Such monuments shall not replace monuments previously set at stated locations.
2. Markers shall be set:
a. At the intersection of street right- of-way lines; at all section corners;
c. At all points where lot lines intersect curved property lines, either front or rear;
d. At all angles in property lines;
e. At all lot corners not otherwise described herein;
f. At the beginning and ending of all curves along the right-of-way lines;
g. At those points falling in paved roadway where they may be represented by road nails or railroad spikes provided a witness marker is set.
3. Monuments shall be of stone or concrete (which may be poured in place), with minimum dimensions of 4 inches by 30 inches, set vertically in place. They shall be marked on top with a brass plug, or iron or copper dowel, at least 3/8 inch thick, set flush with the top of the monument, deeply scored on top with a cross. They shall be set following grading of each phase of development of the subdivision.
4. Markers shall consist of iron pipes, or steel bars, at least 24 inches long, and not less than 5/8 inch in diameter. They shall be set prior to the sale of the lot.
5. All monuments and markers shall be identified by cap or permanent label carrying the surveyor's registration number.
6. Subdivision benchmark design and location. One benchmark may be set in each subdivision containing 100 lots or fewer. One additional benchmark may be set for each additional 100 lots or fraction thereof. The locations of benchmarks shall be approved by the City/County Surveyor or approved authority.
a. The applicant's land surveyor shall establish subdivision benchmark elevations by a closed level circuit from the nearest United States Geographical Section (U.S.G.S.) benchmark.
b. Each subdivision benchmark shall be installed behind the curb; unless otherwise permitted by the City/County Surveyor or appropriate authority.
c. Subdivision benchmark specifications are as follows: each benchmark shall be pre-cast or poured-in-place concrete with a 28-day compressive strength of 4,000 psi and 6% air entrapment. Benchmarks may be at least 12 inches square by 36 inches deep and shall be marked on top with a 3-inch diameter curved-head brass marker set flush with the top of the concrete.
(1980 Code, Ch. 154, § 4.02) (Ord. 2001-4, passed 3-27-2001)