Civil plan review that reads across sheets
Grading, drainage, utilities, and the cross-sheet coordination that sheet-by-sheet review misses, surfaced for your judgment.
Start a free review →Civil sets fail in the coordination between sheets: a structure that drains the wrong way, a callout that doesn't match the plan. PlanFlag is built to read across the set, not just down each sheet.
What PlanFlag checks on a civil set
- Drainage structure inverts: rim and invert elevations checked for slope sanity across sheets (the reverse-slope class of error that's easy to miss by eye).
- Grading consistency: spot elevations, contours, and slope labels checked for agreement.
- Survey vs. proposed design: PlanFlag distinguishes screened background-survey content from proposed design, so existing-condition information isn't mistaken for a design omission.
- Utility & structure schedules: drainage/utility structure schedules cross-referenced against plan callouts.
- Signing & striping references: items checked against MUTCD and applicable state DOT standards.
Sanitary inverts imply a reverse slope between two manholes across two sheets: a coordination error worth confirming before it reaches the field.
Illustrative example: always verify against your own set.
Three tiers of depth
Essential runs a single best-in-class pass for a fast, affordable first read. Professional adds a reasoning pass that weighs findings against each other and drops false positives. Flagship layers cross-sheet reasoning, table/schedule analysis, and visual verification on top: the deepest coverage for high-stakes sets. The same findings get a deeper verdict as you move up; depth means coverage, not more noise.
Where the engineer stays in control
PlanFlag surfaces candidate findings for a licensed professional to evaluate. It does not perform engineering, and it does not seal, stamp, or approve anything. The engineer of record remains solely responsible for the design, and the reviewing professional remains responsible for every decision to act, or not act, on a finding. A clean or short report is not evidence that a set is complete or compliant; it describes only what was assessed.
The goal is the disciplined review a good reviewer already does: "here is what should be on this sheet, let me find it, and let me investigate the unexpected," run consistently and fast, with receipts.
Put it on your next set
Upload a plan set and get a prioritized, severity-ranked report in minutes, then verify every finding with your own judgment.
Start a free review