Chapter 18.230
MONUMENTATION, SURVEY, AND DRAFTING STANDARDS
Sections:
18.230.010 Imprinted monumentation.
18.230.020 Centerline monumentation.
18.230.030 Property line monumentation.
18.230.050 Postmonumentation bonds.
18.230.070 Elevations or vertical information.
18.230.080 Preferred scale proportions.
18.230.090 Final plat drawing requirements.
18.230.010 Imprinted monumentation.
All monuments set in subdivisions shall be at least one-half-inch-by-30-inch steel bar or rod, or equivalent, with durable cap imprinted with the license number of the land surveyor setting the monument. [Ord. 2006-17 § 1, 2006.]
18.230.020 Centerline monumentation.
After paving, except as provided in this chapter, monuments consisting of brass disks set in concrete shall be driven or extended flush with the finished road surface at the following intersections:
(1) Street centerline intersections;
(2) Points of intersection of curves if placement falls within the paved area; otherwise, at the beginnings and endings of curves;
(3) Intersections of the plat boundaries and street centerlines. [Ord. 2006-17 § 1, 2006.]
18.230.030 Property line monumentation.
All front corners, rear corners, and beginnings and endings of curves shall be set with monuments, except as provided in LCMC 18.230.050. In cases where street curbs are concentric and/or parallel with front right-of-way lines, front property line monumentation may be provided by brass screws or concrete nails at the intersections of curb lines and the projections of side property lines. If curb monumentation is used, it shall be noted on the plat, and also that such monumentation is good for projection of line only and not for distance. [Ord. 2006-17 § 1, 2006.]
18.230.040 Postmonumentation.
All monuments for the exterior boundaries of the subdivision shall be set and referenced on the plat prior to plat recording. Interior monuments need not be set prior to recording if the developer certifies that the interior monuments shall be set within 90 days of final subdivision construction inspection by the engineer, and if the developer guarantees such interior monumentation.
(1) The developer shall sign the following certification, the existence of which shall be noted on the plat, if postmonumentation of the interior monuments is chosen:
DEVELOPER’S CERTIFICATION FOR POSTMONUMENTATION
I, ________________, certify that the postmonumentation of the interior monuments of this plat shall be accomplished within 90 days of final acceptance of subdivision construction of the engineer of La Center, Washington.
(Signature)
(2) The land surveyor who performs any postmonumentation shall certify that the interior monuments have been set in compliance with the final plat, and shall record the following certification with the county auditor:
I, ________________, certify that I have set the interior monuments for “_________,” a subdivision plat recorded in Book ____, Page ____, Records of Clark County, and that said monuments are set in compliance with said final plat. DATED this __ day of _______, 20__.
(License number, seal, and signature of surveyor)
(3) If the surveyor cannot certify that the monuments are in compliance with the final plat, the discrepancy shall be resolved by filing an amended final plat in accordance with the provisions of Chapter 18.235 LCMC. [Ord. 2006-17 § 1, 2006.]
18.230.050 Postmonumentation bonds.
In lieu of setting interior monuments prior to final plat recording as provided in LCMC 18.230.040, the engineer may accept a bond in an amount and with surety and conditions satisfactory to him, or other secure method as the engineer may require, providing for and securing to the city the actual setting of the interior monuments as provided in LCMC 18.230.040, and to be enforced by the engineer by appropriate legal and equitable remedies. [Ord. 2006-17 § 1, 2006.]
18.230.060 Survey standards.
All surveys shall comply with standards set forth by state statutes, drafting standards of this title, and Chapter 332-130 WAC, except that linear closures after azimuth adjustment shall be at least a ratio of one to 10,000 for WAC 332-130-050(1)(c), (d) and (e). Where conflicts are identified, the most restrictive standards shall prevail. [Ord. 2006-17 § 1, 2006.]
18.230.070 Elevations or vertical information.
Where required, any elevations or vertical information shall have an accuracy of third-order specifications as published by the U.S. Department of Commerce in a bulletin entitled, “Classification, Standards of Accuracy, and General Specifications of Geodetic Control Surveys,” and benchmarks with the datum used shall be shown on the plat. [Ord. 2006-17 § 1, 2006.]
18.230.080 Preferred scale proportions.
The preferred scale proportions for preliminary and final plats are ratios as follows:
(1) 1:600 (one inch equals 50 feet);
(2) 1:1,200 (one inch equals 100 feet); and
(3) 1:2,400 (one inch equals 200 feet); but in no case shall the proportion exceed 1:2,400. [Ord. 2006-17 § 1, 2006.]
18.230.090 Final plat drawing requirements.
The final plat shall be drawn with ink upon three-mil Mylar film, or equivalent; said sheets to be 30 inches by 21 inches, with a one-inch border on each side or as otherwise directed by the Clark County recording agency. [Ord. 2006-17 § 1, 2006.]
18.230.100 Lettering.
Lettering shall be at least one-tenth inch high, and the perimeter of the final plat shall be depicted with heavier lines (dashed) than the remaining portion of the plat. [Ord. 2006-17 § 1, 2006.]
18.230.110 Location.
All data necessary for the location in the field of all points within the plat shall be shown. Straight lines shall be designated with bearing and distance; curves shall be designated by arc length, central angle, and radius. All dimensions shall be in feet, and decimals thereof to the nearest one-hundredth of a foot, except that angles shall be in degrees to the nearest second. [Ord. 2006-17 § 1, 2006.]