§ 126-486. Survey requirements.

(a)

Monuments. Monuments, consisting of a three-fourths-inch iron rod or larger, 36 inches in length, shall be placed at all corners of the block lines, the point of intersection of curves and tangents of the subdivision, flush with the finished grade.

(b)

Benchmarks.

(1)

Required . One benchmark per subdivision section shall be permanently installed in an approved manner at a location designated by the city engineer. The location and elevation of the benchmark shall be shown on the plat. Permanent benchmarks shall be five-foot-long concrete posts six inches in diameter with the top to be no more than three inches below the finished grade. All benchmarks shall be installed to survey-grade accuracy.

(2)

Deposit . The subdivider or developer shall deposit $500.00 per required benchmark. The deposit shall be:

a.

Refunded upon submission of a data sheet which satisfies the requirements of subsection (b)(3) below and upon acceptance by the city engineer of the installation of the benchmarks; or

b.

Shall be forfeited 90 days after the submission of the final plat.

(3)

Data sheet . Unless the deposit is forfeited in accordance with subsection (b)(2)b. above, a reference sketch showing location of all benchmarks on a data sheet shall be submitted to the city engineer. The benchmark data sheet shall be sealed by a registered professional land surveyor licensed to practice in the state and shall contain latitude and longitude based on WGS 84 datum, Texas state plane coordinates south central zone based on NAD 83, ellipsoid height, combined scale factor and orthometric height (Geoid 99 NAVD 88).

(4)

Waiver . If the benchmark required in this subsection (b)(1) falls within such proximity to an existing benchmark that the required benchmark is determined by the director of engineering to be unnecessary to the global positioning satellite network of the city, the city engineer may waive the benchmark required in subsection (b)(1).

(c)

Lot markers. Lot markers shall be one-half-inch metal rods, at least 24 inches in length, placed at each corner of all lots, flush with the average ground elevation, or they may be countersunk if necessary to avoid being disturbed.

(Code 1967, § 27-49; Ord. No. 3655, § 3, 7-28-83; Ord. No. 9544, § 2, 4-10-03; Ord. No. 10,079, § 1, 6-9-05)