Mark Grenci brings 10+ years of engineering experience, an Engineering Science background from U of T, and independent consulting practice since 2020. The focus is bridge engineering, civil site design, and contract support across Toronto and the GTA.
Practice
Every engagement is led by Mark directly — the person quoting the work is the person sealing it, walking site, and answering the phone when something needs a decision.
Design and analysis of steel, concrete, and composite bridges — new builds, widenings, and rehabilitation. Load ratings, retrofit strategy, and constructability review for crossings of every span class.
Grading, drainage, roadway alignment, stormwater, and servicing for industrial, transportation, and infrastructure sites. From feasibility to issued-for-construction.
Sealed engineering deliverables on contract for owners, EPCs, and design firms — drop-in capacity for crunch periods, second-shift design, and projects where you need a P.Eng. of record.
Third-party design check, peer review, and constructability QA. The senior set of eyes you bring in before a sealed package goes out the door — or before a contractor mobilises.
How the work runs
Engineering projects go sideways at the handoffs. The cure is to put scope, assumptions, and review checkpoints up front — so you always know where the design stands and what comes next.
Before any drawings come out, we walk the brief — what's being built, who the stakeholders are, and what the calendar looks like. Half the time the right move is reframing the question, not answering it.
Inside a week, you get a fixed-fee or T&M proposal with a clear scope, deliverable list, and assumptions called out. No estimate creep, no vague exclusions to argue about later.
Design, calcs, and drawings produced to the standards your jurisdiction needs. You get progress drops on a schedule we agree up front — never radio silence followed by an IFC dump.
Sealed deliverables on issue date, with construction-phase support priced into the engagement. Through RFIs, shop-drawing review, and field changes — same engineer, all the way.
Selected work
Illustrative project studies showing the kinds of bridge, civil, and contract engineering work the practice supports across active infrastructure programs.
Engagement focus
The practice is built around bridge engineering, civil site design, contract delivery support, and independent technical review for teams that need experienced engineering judgment on live work.
Load ratings, rehabilitation packages, and independent design checks for bridge owners and delivery teams working under active schedules.
Overflow production support for firms that need senior engineering capacity without carrying another full-time hire.
Site layout, grading, drainage, and coordination support for infrastructure and industrial projects from concept through construction issue.
Third-party review focused on constructability, standards compliance, and reducing late-stage redesign risk before issue or mobilization.
About
Mark brings 10+ years of engineering experience, an Engineering Science background from the University of Toronto, and independent consulting practice since 2020.
The work is positioned around bridge engineering, civil site design, and contract engineering support for owners, contractors, and design teams that need technically serious, senior-level involvement.
Senior-led work with a direct, technically rigorous approach for bridge, civil, and site engineering engagements.
Start a project
Email the project brief, site location, and target schedule to start the conversation. A callback can be arranged once the scope and the right contact number are confirmed for the engagement.
P.Eng. · Professional liability coverage details available on request ·10+ years, independent since 2020