Common Civil Site Plan Issues

Civil drawing sets carry a distinct set of recurring issues, many tied to documentation completeness and coordination with the building design rather than purely engineering calculation errors.

Boundary and Grade Matching Gaps

Proposed grading that doesn't properly match existing grade at property boundaries or adjacent parcels is a common issue, particularly on infill or urban sites where grading has to reconcile tightly with neighboring conditions. CIV-21 Boundary Grade Matching Check looks specifically for these transition points where proposed grade meets an existing or adjacent condition.

Stormwater and Drainage Direction Conflicts

Grading and drainage design that doesn't clearly establish where stormwater actually flows, sometimes because contour lines and drainage arrows are inconsistent, sometimes because a low point doesn't have a documented outlet, creates real problems if built as drawn. CIV-24 Stormwater Runoff Direction Check verifies that drainage direction is clearly and consistently documented, while CIV-22 Gutter Slope Compliance Check looks specifically at whether gutter and pavement slopes meet drainage requirements.

Earthwork Quantity Errors

Cut and fill quantities that don't reconcile properly between the grading plan and the earthwork summary can create budgeting and scheduling problems well before construction starts, since these numbers often feed directly into bid pricing. CIV-5 Earthwork Quantities Check verifies that quantities shown are consistent with what the grading plan actually depicts.

Demolition Plan Completeness

A demolition plan that doesn't clearly show all existing site elements to be removed, utilities, pavement, structures, is a common gap that creates confusion and potential conflicts once demolition actually starts. CIV-4 Demolition Plan Check verifies this documentation is complete before the set goes to bid or permit.

Sight Triangle and Site Distance Violations

Sight triangles at driveway and street intersections, required to maintain clear visibility for traffic safety, are sometimes compromised by proposed landscaping, signage, or grading shown elsewhere on the same site plan without cross-checking against the sight triangle requirement. CIV-13 Sight Triangle Check looks specifically for this kind of conflict between the sight triangle requirement and other site elements.

Sidewalk Width and Agency Standard Compliance

Sidewalk widths that don't meet the specific standard of the reviewing agency, which can vary meaningfully between jurisdictions, are a common plan check comment, particularly when a design defaults to a generic standard rather than the specific local requirement. CIV-17 Sidewalk Width Per Agency Standard checks against the applicable agency's specific requirement rather than a generic assumption.

Documentation and Sheet Completeness Gaps

Beyond engineering content, civil sheets have their own documentation completeness requirements: benchmark and datum references, a complete legend and symbol table, title block fields fully populated, a vicinity map showing the site's location in context. CIV-2 Benchmark and Datum Reference Check, CIV-9 Legend and Symbol Table Check, CIV-15 Title Block Fields Completeness Check, and CIV-16 Vicinity and Location Map Check all verify these baseline documentation requirements, which are easy to overlook under deadline pressure but are exactly what a plan reviewer checks for first.

Engineer Seal and General Notes Verification

Missing or incomplete engineer seal and signature, or a general notes sheet that's missing standard project notes, are basic but consequential gaps, since a plan check submittal can be rejected outright for missing a required seal regardless of how sound the underlying engineering is. CIV-6 Engineer Seal and Signature Check and CIV-7 General Notes Sheet Check verify these requirements are met.

FAQ

Are these documentation checks as important as the engineering content checks? Yes, in a practical sense. A plan reviewer can reject a submittal for missing a required seal or an incomplete title block just as readily as for a real engineering error, so documentation completeness checks catch issues that would otherwise cause an avoidable resubmittal cycle.

Do sight triangle requirements vary significantly between jurisdictions? Yes, both the required dimensions and the specific visibility criteria can vary by jurisdiction, which is why checking against the applicable local standard, rather than a generic assumption, matters.

How does earthwork quantity accuracy affect bidding? Contractors typically price earthwork based on the quantities shown in the civil documents. A quantity error discovered after bid can lead to disputes over whether the discrepancy constitutes a differing site condition, which is a costly and time-consuming process to resolve compared to catching the quantity error before bid.