The commission revisited a previously tabled request for additional funds to cover construction engineering and inspection (CEI) related to the storm‑drainage culvert replacement project along SW 80th/First Avenue.

Public works staff explained that unforeseen underground conflicts—an existing water main and a sanitary force main that were not at the elevations shown in plans, plus unlocated telecommunications conduits—required additional engineering design work and on‑site oversight. Staff said the existing drainage/catch pipe is large (approximately 72 inches in diameter) and that the unexpected conditions required rerouting utilities, temporary shutdowns of lift stations, and procurement of additional fittings and pipe.

Why it matters: the additional work increased on‑site time for the engineer of record (construction inspections and certifications), prompting a request for roughly $63,000 in extra CEI funding. Commissioners asked why the conditions were not detected in design and whether consultants had performed adequate subsurface utility and depth verification. Staff explained that horizontal locations are typically shown on utility locates but actual vertical elevations can be unknown until excavation.

Commissioners requested the original contract documents, the design engineer’s contract (Chen Moore & Associates), a breakdown of prior payments and contingency usage, and a performance/oversight summary. Several commissioners said they want Chen Moore to appear at a future meeting to explain the unforeseen issues and to provide documentation demonstrating why the additional CEI funds are needed. The manager and staff recommended tabling the item until the November meeting and agreed to provide the requested materials.

Ending: The commission directed staff to return with the original contract, all amendments, supporting photographs and a memo describing contingency, prior payments and the scope of additional work; the item is tentatively scheduled for the November meeting with the engineer present.