§ 25-49.5. Monuments.

(a)

In making a survey, the engineer or surveyor shall set two permanent monuments within sight of each other in each block and with a distance between them which will enable an accurate resurvey of the block. Concrete monument pairs shall be placed near enough to all lot corners so that they may be readily reestablished. The maximum distance shall be three thousand feet (3,000), or less, if required by the County Surveyor. Iron pipes, iron pins or iron tees not less substantial than one-half inch by thirty inches shall be placed at the beginning and end of all curves, at all angle points in block lines, and at all lot corners, 6" x 6" x 36" reinforced concrete posts with the exact point permanently marked on a metal pin or disc. In cases where a monument marking a lot corner would fall within the line of an easement, monuments shall be set on the points where the lot line intersects the easement line. All monuments shall be permanently and visibly marked or tagged with the registration number of the surveyor.

(b)

With the approval of the County Surveyor, and in accordance with the following conditions, permanent monuments may be set within the right-of-way of streets and roads.

(1)

Such monuments shall meet all requirements of subsection (a) of this section, except as the requirement of two in each block.

(2)

They shall be readily accessible from the street area.

(3)

Such monuments shall be set at locations where they are least likely to be disturbed by operations in connection with construction, maintenance or repair of roads or streets, and of underground facilities.

(4)

When such monuments are to be set within the traveled way within the sidewalk area, they shall be encased in a castiron box and cover shall be set flush with the finished grade of the pavement or sidewalk, and the box shall be supported independently of the monument.

(5)

The total number of such monuments set shall not be less than the number which equals twice the number of blocks in the subdivision.

(c)

A bench mark shall be established on at least one permanent monument and its elevation referred to mean sea level (USGS) datum shall be shown on the final map. With the approval of the County Surveyor, in lieu of establishing the bench mark on a permanent monument, a bench mark may be established on a natural or artificial object, permanent in nature. In which case, such a bench mark and its elevation, referred to mean sea level (USGS) datum, shall be shown on the final map together with a description of the object and its relation to a lot and block in the subdivision. This bench mark may be waived by the County Surveyor if it is determined that such a requirement would place an undue hardship on the developer.

(d)

All monuments and bench marks shall be subject to inspection and approval by the County Surveyor and shall be placed prior to the approval of the final map, provided, that monuments other than those monumenting the exterior boundary of the land being subdivided, be set after the recording of the final map if the subdivider's engineer or surveyor certifies on the map that the monuments will be set on or before a specified later date, and if the subdivider furnishes to the county a bond or cash deposit guaranteeing the payment of the cost of setting the monument.

(e)

As to those monuments marking the exterior boundaries of the subdivision that may fall in streams or other inaccessible positions or with the construction limits of required improvements, a substantial reference point may be set with the approval of the County Surveyor. Upon the completion of the construction the point on the exterior boundary shall be set from the references. If it may be physically impractical to set a final monument marking a point on the exterior boundary, the County Surveyor may approve the setting of a final reference monument or monuments.

Such monuments marking the exterior boundaries as described above may be set after the filing of the final map subject to the terms and conditions prescribed for other monuments to be set.

(f)

Engineer shall notify the County Surveyor of the completion of the exterior and interior monumenting, in writing, at least two weeks prior to any inspection and approval of such monuments. Monuments shall be set in the field within a limit of error of one in five thousand from the location as calculated and shown on the map.

(Ord. No. 5 § 5.)