Catch site conflicts before you break ground

Helonic is an AI construction drawing analysis platform for civil engineers who review 2D PDF drawing sets.

Coordinate utilities, verify grading, and catch drainage issues before the first shovel hits dirt. AI-powered site plan review that reads every sheet in your set.

What slows down civil engineers?

Civil engineers lose weeks when utility conflicts, grading mismatches, and drainage errors surface after earthwork starts.

Utility Conflicts

Underground utilities from multiple providers create a complex web of potential crossing conflicts and clearance issues.

Site Coordination

Building footprints, grading plans, and utility layouts must all align with survey data and jurisdictional requirements.

Drainage Issues

Grading errors and drainage path problems are expensive to fix once earthwork is underway.

How does Helonic help?

Helonic reviews civil, landscape, and architectural site sheets together and flags utility, grading, and stormwater conflicts before mobilization.

Utility coordination

Cross-reference all underground utility plans, water, sewer, storm, gas, electric, telecom, against each other and against structural foundation plans. Identify crossing conflicts, insufficient separation distances, and depth issues before excavation begins.

Grading verification

Review grading plans for internal consistency and coordination with adjacent properties. Check that spot elevations, contour lines, and flow arrows tell a coherent drainage story. Flag areas where water may pond or flow in unintended directions.

Stormwater compliance

Verify that stormwater management features, detention ponds, bioswales, permeable pavements, and underground storage, are sized and located consistently across site plans, grading plans, and stormwater calculations.

Site access review

Check vehicular and pedestrian access points for sight distance, grade, turning radii, and ADA compliance. Verify fire lane dimensions and access to hydrants. Ensure construction staging does not conflict with permanent access.

Erosion control planning

Review erosion and sediment control plans against site grading for completeness. Verify that silt fences, inlet protection, stabilized construction entrances, and temporary sediment basins are properly located and sized.

What issues does Helonic catch?

Helonic flags invert mismatches, utility clashes, ADA path gaps, and stormwater details that turn into change orders during earthwork.

Utility & Grading

Utility crossing conflicts with insufficient separation
Grade elevation mismatches between plan sheets
Drainage path errors causing ponding conditions
Utility invert elevations conflicting with structures

Site & Compliance

Building setback and easement violations
Stormwater feature sizing inconsistencies
Missing erosion control measures at critical areas
Fire lane and emergency access deficiencies

What return do civil engineers see with Helonic?

Civil teams cut site RFIs and earthwork rework because conflicts are found on the drawings, not after excavation starts.

REWORK AVOIDED

$50K–$400K

Per project (based on CII rework cost data)

SITE CONFLICTS

35+

Identified per project, on average

FASTER REVIEW

60%

Utility coordination turnaround

Frequently Asked Questions

What civil coordination issues does Helonic catch?

It flags conflicts between the civil site, grading, drainage, and utility drawings and the architectural and structural set, such as utility routing that clashes with foundations or grades that disagree with the building set. Each finding cites the sheet.

Does it check utility coordination across disciplines?

Yes. It flags where site utilities conflict with each other or with the building footprint and foundation, the gaps that drive expensive field relocations.

Can it catch grading and drainage inconsistencies?

Yes. It flags where spot elevations, slopes, or drainage callouts disagree between civil sheets or with the architectural set.

Does it require a civil model or just the PDFs?

It works on the 2D civil and building PDFs you already produce; no model is required.

Manas Gandhi

Co-founder & CTO, Helonic

Manas is the co-founder and CTO of Helonic, where he leads engineering and AI research for construction drawing analysis. He works directly with structural, MEP, civil, and fire protection engineers to translate the way they review drawings into AI systems that flag the issues that actually matter in the field. Before Helonic, he built machine learning pipelines for technical document understanding and has spent the last several years interviewing licensed design engineers and discipline leads to ground product decisions in real practice rather than industry assumptions.

Areas of focus

AI for technical document understanding
Cross-discipline coordination workflows
Code compliance automation (IBC, NEC, NFPA, IPC, IMC, ASCE)
Structural and MEP drawing review systems

How this page was researched: Site coordination checks reference grading, drainage, and utility conventions and the civil-architectural interfaces where conflicts arise. Examples are drawn from Helonic's review of civil sets coordinated against the architectural and structural set.

Last reviewed by Manas Gandhi · August 3, 2026

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Get it right before you break ground

See how Helonic helps civil engineers catch site conflicts before earthwork begins.