Utility Engineering Investigation. Utility engineering investigation includes utility investigations subsurface and above ground prepared in accordance with ASCE/CI Standard 38-02 [(xxxx://xxx.xxxx.xxx.xxx/programadmin/asce.cfm)] and Utility Quality Levels.
A. Utility Quality Levels (QL) Utility Quality Levels are defined in cumulative order (least to greatest) as follows:
1. Quality Level D - Quality level value assigned to a utility segment or utility feature after a review and compilation of data sources such as existing records, oral recollections, One- Call markings, and data repositories.
2. Quality Level C - Quality level value assigned to a utility segment or utility feature after surveying aboveground (i.e., visible) utility features and using professional judgement to correlate the surveyed locations of these features with those from existing utility records.
3. Quality Level B - Designate: Quality level value assigned to a utility segment or subsurface utility feature whose existence and position is based upon appropriate surface geophysical methods combined with professional judgment and whose location is tied to the project survey datum. Horizontal accuracy of Designated Utilities is 18” (including survey tolerances) unless otherwise indicated for a specific segment of the deliverable. Quality Level B incorporates quality levels C and D information. A composite plot is created.
4. Quality Level A – Quality level value assigned to a portion (x, y, and z geometry) of a point of a subsurface utility feature that is directly exposed, measured, and whose location and dimensions are tied to the project survey datum. Other measurable, observable, and judged utility attributes are also recorded (per District Best Practices). The utility location must be tied to the project survey datum with an accuracy of 0.1 feet (30-mm) vertical and to 0.2 feet (60-mm) horizontal. As test holes may be requested up front or during the project, test holes done prior to completion of QL D, C, or B deliverables must be symbolized on the QL B deliverable with a call out indicating test holes number. This is in addition to and not in lieu of the test hole.
B. Utility Investigations Methodology
Utility Engineering Investigation. Utility engineering investigation includes utility investigations subsurface and above ground prepared in accordance with ASCE/CI Standard 38-02 [(xxxx://xxx.xxxx.xxx.xxx/programadmin/asce.cfm)] and Utility Quality Levels.
A. Utility Quality Levels (QL) Utility Quality Levels are defined in cumulative order (least to greatest) as follows:
1. Quality Level D - Quality level value assigned to a utility segment or utility feature after a review and compilation of data sources such as existing records, oral recollections, One- Call markings, and data repositories.
Utility Engineering Investigation. (Subsurface Utility Engineering) including utility investigations subsurface and above ground prepared in accordance with AASHTO standards [ASCE C-I 38-02 (xxxx://xxx.xxxx.xxx.xxx/programadmin/asce.cfm )] and Utility Quality Levels as follows.
1. Utility Quality Levels are defined in cumulative order (least to greatest) as follows:
a. Quality Level D - Existing Records: Utilities are plotted from review of available existing records.
b. Quality Level C - Surface Visible Feature Survey: Quality level "D" information from existing records is correlated with surveyed surface-visible features. Includes Quality Level D information.
c. Quality Level B - Designate: Two-dimensional horizontal mapping. This information is obtained through the application and interpretation of appropriate non-destructive surface geophysical methods. Utility indications are referenced to established survey control. Incorporates quality levels C and D information to produce Quality Level B.
d. Quality Level A - Locate (Test Hole): Three-dimensional mapping and other characterization data. This information is obtained through exposing utility facilities through test holes and measuring and recording (to appropriate survey control) utility/environment data. Incorporates quality levels B, C and D information to produce Quality Level A.
Utility Engineering Investigation. (Subsurface Utility Engineering). (Function Code 150)
Utility Engineering Investigation. The GEC shall provide oversight of utility engineering investigation including utility investigations subsurface and above ground prepared in accordance with current standards. The GEC shall review and provide oversight of utility activities including schedules, XXX plans, test hole locations and datasheets and shall participate in meetings with the STATE and utility owners as needed.
160.4.a Decisions/action items list from meeting with the State and/or utility owners 160.4.b GEC’s internal QA/QC set DocuSign Envelope ID: 3FC526E5-7650-4F1C-BCF1-67484E873D0D
Utility Engineering Investigation. The GEC shall provide oversight of utility engineering investigation including utility investigations subsurface and above ground prepared in accordance with current standards. The GEC shall review and provide oversight of utility activities including schedules, XXX plans, test hole locations and datasheets and shall participate in meetings with the State and utility owners as needed.
Utility Engineering Investigation. Utility engineering investigation includes utility investigations subsurface and above ground prepared in accordance with ASCE/CI Standard 38-02 [(xxxx://xxx.xxxx.xxx.xxx/programadmin/asce.cfm)] and Utility Quality Levels.
Utility Engineering Investigation a. The Engineer shall provide detailed investigation and mapping of existing communication manholes to assist with relocation planning and design. Detailed butterfly exhibits of manholes shall be prepared.
