A systematic QC backstop for Caltrans plan sets. 615 rules drawn straight from the PPM and CADD Manual, applied uniformly to every sheet in every plan set you ship.
Plans Preparation Manual — title blocks, sheet layout, annotations, submittal requirements.
Line weights, symbology, layer conventions, and plot-visible drawing standards.
Highway Design Manual — alignment, sight distance, pavement, structures. Premium tier, in development.
Cross-reference QA between the plan set and Caltrans standard special provisions.
Caltrans first because no other state DOT has drafting standards this rigorously codified. Other transportation agencies are on the roadmap as the framework generalizes.
Three passes across every sheet — text, geometry, and vision — applied to every rule that fits.
Drop the full plan set PDF. Stratum Check extracts text and rasterizes every sheet at the resolution the engine needs.
Title, typical section, layout, profile — each sheet is classified from its title block and filename so rules apply where they belong.
Text extraction, geometric verification, vision checks — applied systematically across every rule that fits each sheet type.
Your reviewer confirms, defers, or dismisses each finding with a single click. Citations included. Engineer keeps the call.
The findings that reach Caltrans submittal review are the ones a manual QC pass missed under deadline pressure. We've spent careers watching those misses cost firms time, money, and professional standing.
Every rule runs on every relevant sheet, every time. No reviewer variance, no rules skipped because the deadline was tight, no human fatigue on the 70th sheet.
Fewer findings caught by Caltrans at submittal means fewer plan revisions, fewer re-stamps, less rework cost, less professional exposure.
Every finding references the exact PPM or CADD Manual section it came from. Your reviewer sees the rule text — no black-box judgment.
Stratum Check exists because we've spent fifteen-plus years delivering Caltrans PS&E ourselves — and watched, again and again, how the systematic checks slip when deadlines compress and reviewer attention runs out.The Stratum Check team
Running plan sets through Stratum Check produces more than findings. Over time, a feedback loop forms — junior staff learn the standards in context, and senior engineers spend their reviews on the calls that actually require a stamp.
Every finding cites the exact PPM or CADD section it came from, with context explaining when the rule applies and why. Running their own plan sets through Stratum Check, junior staff pick up the standards in real situations — faster and more durable than reading the manual cover-to-cover, and more reliable than catching things ad-hoc under deadline.
The systematic checklist pass happens before your senior reviewer opens the plan set. Their attention stays on ambiguous calls, design trade-offs, and the handful of findings that actually need a licensed decision — not on hunting for the 40th missed postmile annotation of the day. Senior engineer time stays on senior engineer work.
14 days. Up to 5 reviews during the trial. No credit card required.
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