Chapter 5.30
CONSTRUCTION ENGINEERING
Sections:
5.30.010 Staking requirements.
5.30.020 Side sewer locations.
5.30.030 Survey authorization and responsibility.
5.30.050 Soil compaction tests.
5.30.010 Staking requirements.
The job engineer shall be responsible for providing all necessary field surveys and construction staking. Grade and alignment stakes shall be set in advance of any trenching or excavation and, in general, stakes for straight sewers shall be set at either 25- or 50-foot intervals, depending upon topography and grade of the sewer. Intervals of 25 feet, or less, shall be used through all horizontal and vertical curves and for sewers with a grade flatter than five thousandths. Stakes shall be approximately marked to show the engineer’s station, the offset, and the cut to sewer invert. [Ord. 2014-2 (Att. § 6-01).]
5.30.020 Side sewer locations.
Prior to installation of lateral sewers, the lateral location and elevation at the property line shall be staked and flagged in the field by the job engineer. [Ord. 2014-2 (Att. § 6-02).]
5.30.030 Survey authorization and responsibility.
When a survey is to be made on private property for a public sewer, permission of the property owner shall be obtained by the job engineer or his representatives prior to entry. The District will not be answerable or accountable in any manner for any loss or damage that may come about during or as a result of survey work by others. [Ord. 2014-2 (Att. § 6-03).]
5.30.040 Field changes.
During construction the District, through the District Manager, District Engineer or District Inspector, may request the job engineer to make changes in the work. The job engineer shall review such changes and prepare the necessary drawings and descriptions for execution by the construction contractor. [Ord. 2014-2 (Att. § 6-04).]
5.30.050 Soil compaction tests.
For all works in public streets and works not in public streets as required by the District, the applicant shall retain a soils engineer to take compaction tests in the trench backfill or embankment construction. On District projects, the District will retain a soils engineer.
The soils engineer shall take compaction tests at intervals and depths as required by the agency having jurisdiction on the right-of-way or as required by the District; as a minimum, one compaction test shall be taken midway in the intermediate backfill and on the surface every 100 feet of sewer line length. The soils engineer shall immediately provide the District Inspector the results of the soils tests. At the end of the job, the soils engineer shall provide the District with a summary of the soils tests taken. [Ord. 2014-2 (Att. § 6-05).]
5.30.060 Record drawings.
Upon completion of the work and prior to acceptance by the District, the job engineer shall provide “record drawings” to the District. Record drawings shall consist of all details shown on the original approved plans, corrected and/or expanded to reflect all design or construction changes from the approved plans. Particular attention should be paid to changes in the following items:
(1) Sewer line and structure locations.
(2) Surface and invert elevations of structures.
(3) Slope, size, type of pipe, and length between structures.
(4) Wye and lateral locations.
The job engineer shall submit a preliminary copy of the record drawings for review by the District. After review and approval by the Inspector or other District representative, the job engineer shall submit one complete set of high quality prints and one complete set of high quality duplicate tracings, noted and signed by the job engineer as “Record Drawings.” [Ord. 2014-2 (Att. § 6-06).]