Colorado State Services Building – Waste Riser Replacement

For the seven-story Colorado’s State Services Building (SSB), part of the State Capitol Complex, 360 Engineering helped find a long-term solution for replacing the building’s main waste riser. The team began by documenting all the known issues, then performed an evaluation of the waste riser that included collecting pipe fittings and coupling samples for material testing, measuring pH balance throughout the building complex, and determining pipe conditions with camera scoping. Based on their findings, the team provided recommendations along with cost estimates and construction documents. The selected alternative rerouted the steam condensate pump discharge, added two new pumping stations, and replaced the waste riser. In addition, 360 Engineering provided construction administration services, including a pre-bid walk through, pre-construction meetings, weekly owner-engineer-contractor (OEC) meeting/visits, submittal review, answering RFIs, punch list visits, and a final acceptance walk-through.


Denver, Colorado


State of Colorado