Phoenix Valley Metro, South Central Light Rail Extension

T2ue provided Subsurface Utility Engineering services, utilizing the CI/ASCE 38-02 standard, including conducting records research (CI/ASCE 38-02 Quality Level D), field observations (CI/ASCE 38-02 Quality Level C), designating utilizing geophysical equipment to horizontally position the subsurface utilities (CI/ASCE 38-02 Quality Level B), structure reviews/diagrams (for all subsurface utility structures), Utility Coordination, and providing this information to the client via CAD drawings. The ASCE 38-02 Plan was signed and sealed by a professional engineer. The preliminary design team completed a utility base map of just record information for the 15% plans, this utility base map included roughly 308,000 LF of utilities.

Once the field investigation and ASCE 38-02 process was completed for Phase One, T2ue mapped 555,015 LF of utilities. This included over 125 unknown utilities that stretched out over two (2) miles in footage. Following the ASCE 38 Standard, the T2ue team mapped over 80% more utilities than on record, and this advanced investigation will aid the CMAR team to build a faster, cheaper, and most importantly, a safer project for the City and Valley Metro. The overall mapping between Phase 1 and Phase 2, T2ue mapped over 700,000 LF. This project also included utility coordination with the CMAR team, Valley Metro, HDR, City of Phoenix, 3rd party utility companies and T2 Utility Engineers.