What Does Construction Administration by an Engineer Include?

Construction administration is the engineer's services during construction: reviewing submittals and shop drawings, responding to RFIs, conducting periodic site observations, reviewing change order pricing, certifying payment applications, and preparing punch lists. It keeps the built work aligned with the design intent and catches deviations early. The core idea is continuity. The team that designed the building understands its assumptions — the load paths, the code basis, the coordination decisions — better than anyone who inherits the drawings cold. CA keeps that design knowledge in the loop while the building goes up, which is exactly when field conditions, substitutions, and schedule pressure start pushing the project away from the approved documents.

Submittal review is the biggest line item. The contractor proposes specific products and fabrications — steel shop drawings, concrete mixes, mechanical equipment, connection details — and the engineer checks them against the design intent. This isn't rubber-stamping; shop drawings routinely reveal coordination problems that the design drawings didn't anticipate. RFI response is the real-time side of CA. When the field hits something the drawings don't address — an unforeseen condition, a conflict between trades, a dimension that doesn't work — the engineer provides the design-side answer. Site observation visits, typically at structural milestones, confirm the work generally conforms before it's covered. Payment application review, change order evaluation, and punch list preparation round out the scope, giving the owner an independent technical check on what they're paying for.

CA works best when the expectations are set before construction starts — who answers what, how fast, and what triggers a site visit. Vague CA scopes produce slow responses and finger-pointing. Here's how I set up the phase on our projects.

• Define the submittal schedule early: late submittals are the most common cause of CA-phase delays
• Set RFI response expectations in writing: turnaround time, who answers, and what counts as an emergency
• Schedule observation visits at cover-up milestones: foundations, framing, and MEP rough-in before concealment
• Require substitution requests in writing with full data: no verbal approvals on material changes
• Keep a running log of field decisions: the as-built story is written during construction, not after