Drainage and detention
Develop the accepted hydrology, conveyance, water-quality, and detention basis from survey and jurisdiction criteria.
Commercial civil and site engineering
Commercial Drainage, Grading and Site Engineering
Commercial site packages for owners, developers, architects, and contractors who need a coordinated path through drainage, grading, detention, access, utility, and land-disturbance requirements.
Commercial Permit, Structural and MEP Engineering - Fast, Coordinated, and Built Around Your Approval Deadline.
Contractor-friendly scopeWritten fee and scheduleOne ordinary AHJ cycle
Scope and availability review
Project availability is determined after reviewing the scope, project location, jurisdictional requirements and required engineering disciplines. Additional insurance or specialty clearance may be required before contract or production.
Customer trigger
Civil scopes that affect the entire project
Grading and erosion control
Coordinate finished grades, drainage paths, stabilization, and land-disturbance requirements.
Commercial site development
Support defined land-development packages with civil drawings and calculations.
Pavement and streets
Design accepted commercial concrete pavement, access, curb, and street improvements.
Water and sanitary sewer
Coordinate accepted utility plans, calculations, profiles, and public-agency requirements.
Permit corrections
Review civil comments and revise the original accepted engineering scope through one ordinary cycle.
Starting fees
Premium commercial scope with controlled pricing
Final fee depends on the accepted jurisdiction, existing information, building and equipment complexity, required disciplines, field needs, and deadline.
Defined commercial civil package.
Coordinated land-development scope.
When survey, field, or record information is incomplete.
Proposal and payment policy
- No payment is required before scope and availability review and acceptance of a written proposal.
- Projects at or below $3,000: 100% before production after proposal acceptance.
- Projects from $3,001-$25,000: 60% deposit; balance before final sealed issuance.
- Projects above $25,000: 50% deposit, 30% at coordinated draft, 20% before final issuance.
- Rush service: 40% premium when accepted in writing.
- Site visits, surveying, geotechnical work, testing, laboratory services, and scope changes are separately priced.
Defined deliverables
What the accepted package may include
- Drainage and detention calculations when required
- Grading, erosion-control, and drainage drawings
- Accepted pavement, access, water, and sewer design
- Code and jurisdiction notes
- Coordination with survey, geotechnical, architectural, and utility information
- One ordinary AHJ review cycle
Turnaround control
Complete qualified requests received during operating hours target a same-business-day scope response. The written proposal confirms the production start, required intake, responsible-professional availability, review milestones, and final issuance date before payment.
Scope boundary
Boundary/topographic survey, platting, geotechnical investigation, environmental permitting, wetland work, traffic studies, off-site utility capacity, utility fees, construction staking, inspection, and testing are separate unless listed.
Project information
Send address, AHJ, records, and the real deadline
Use the project description to identify the full project address and authority having jurisdiction. Upload the files already available; additional photographs or records may follow during scope review.
Required intake
- Project address, parcel, and AHJ
- Current boundary/topographic survey
- Proposed site and architectural plan
- Geotechnical and drainage reports
- Utility records and availability letters
- Existing permit comments
- Disturbance area and project schedule
- Known easements, floodplain, and downstream constraints
Responsible-charge statement
Engineering services are performed under the responsible charge of the appropriately licensed Grand Street Engineering professional for the applicable project and jurisdiction. Grand Street Engineering does not offer after-the-fact sealing, rubber stamping, or a stamp-only service.
Owner, equipment, geometry, criteria, or scope changes require a written change order. Final issuance remains subject to professional review and required payment.
Scope and availability review
Start with the facts you already have
Include the project address, AHJ, requested service, current problem, permit comments, deadline, and decision-makers. The five-minute response target applies during operating hours; the same-day proposal standard applies after qualification and sufficient scope information.
Call913-423-8619
Written proposalScope, price, schedule, assumptions, exclusions, clearance conditions, and payment terms
FilesPlans, photographs, comments, surveys, reports, cut sheets, and records may be uploaded now or through the approved secure follow-up link
Submitting information does not create an engineering engagement. Work begins only after scope and availability review, written acceptance, required coverage and authorization clearance, and required payment.
Open Secure Project Intake Form
If the embedded form does not load, open the secure form above or call 913-423-8619. Do not send confidential engineering records by ordinary text message.
Frequently asked questions
Scope and payment questions
Is surveying included?
No. Surveying is separately contracted or coordinated unless explicitly listed in the proposal.
Can drainage be designed without a current survey?
Reliable topographic and boundary information is normally required. A paid data-verification step may be needed before a fixed production scope.
Does this include a traffic study?
Traffic-impact and access studies are a separate service and fee.
Where is service available?
Only where GSE and the responsible professional are authorized and competent for the accepted civil scope.
Ready to define the engineering path?
Send the address, AHJ, current documents, and approval deadline.