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Every discipline your site needs — coordinated under one PE seal.
Twelve engineering service areas in-house, built around RV parks and resorts, so every system is designed together instead of stitched across firms.
Design & build
Construction & Installation
We install what we design. Design and construction under one roof — with a focus on septic systems and RV parks — so there's no gap between the drawing and the dirt, and one firm is accountable from seal to startup.
- Septic / OSSF installationWe design AND install on-site sewage facilities — aerobic, conventional, and drip — with our own field inspection, startup, and as-built documentation to close the 30 TAC Ch. 285 permit.
- RV park constructionSite work, pads, roads, drainage, and full utility build-out for RV parks and resorts, executed to the sealed plans we produced.
- Design-build accountabilityOne contract, one firm, one point of accountability from engineering through installation and startup.
- As-builts & closeoutField records and as-builts that match the permit, so the AHJ signs off the first time.
01 — Civil & Site
Civil & Site Development
The grading, drainage, and site backbone of your project — designed to pass AHJ and drainage-district review without a redline marathon.
- Drainage & detentionHydrology and hydraulics, detention sizing, and outfall design (HydroCAD, HEC-RAS, HEC-HMS), including HCFCD and HCED outfalls.
- Grading, paving & plattingEarthwork, site grading, pavement sections, and engineering support for plats (Civil 3D).
- Permit application & acquisitionApplications prepared, submitted, and carried through agency comments to approval.
02 — Underground Utilities
Underground Utilities
All underground utilities, wet and dry, designed together so they miss each other in the field instead of on a change order.
- Wet & dry utility designWater, sanitary and storm sewer, gas, electric, and telecom — routing, depth, and conflict resolution.
- Site power distributionService, distribution, and pedestal layout sized for full occupancy.
- Coordinated, not sequentialUtilities developed against the grading and structural set, not bolted on after it.
03 — Structural
Structural Engineering
Foundations and framing designed for Texas soils and wind — sealed, efficient, and constructible.
- FoundationsSlab-on-grade, pier-and-beam, and masonry pier design for expansive soils.
- Framing & analysisWood, steel, and concrete framing modeled in Robot Structural Analysis.
- Retaining & site structuresWalls, ramps, and miscellaneous structures for site build-out.
04 — OSSF
On-Site Sewage Facilities
On-site wastewater for sites beyond the reach of municipal sewer — evaluated, sized, designed, and permitted.
- Site evaluations & soil assessmentsSoil profile and site suitability work that sets the design basis.
- System designConventional septic, ATU, aerobic drip, and mound systems sized to soil and flow.
- 30 TAC Chapter 285 permittingPermit packages prepared for the county AHJ, including Harris County (HCED).
- Installation inspection & as-builtsField inspection and as-built documentation to close the permit.
05 — Water Systems
Water Systems
Water supply for rural and resort sites — source, storage, and distribution engineered and submitted to the state.
- Public water systems (PWS)PWS design and TCEQ engineering reports.
- Hydropneumatic tanksTank sizing and design reports for pressure-maintenance systems.
- Supply planningSource capacity, storage, and distribution for rural and resort sites.
06 — Environmental & Regulatory
Environmental & Regulatory
Keeping your site compliant and defensible — floodplain, stormwater, and permitting handled before they become a schedule problem.
- Floodplain & FEMAFloodplain analysis, finished-floor determination, and LOMA / LOMR support.
- SWPPP & stormwaterStormwater pollution prevention plans and TPDES construction general permit compliance.
- USACE & TCEQNationwide Permit applications and TCEQ environmental compliance.
07 — Aquatics
Pool & Aquatic Design
Recreational water for resorts and amenities — engineered end to end, not handed to a pool contractor to figure out.
- Structural & shell designPool and feature structures designed for soils, loads, and water pressure.
- Hydraulics & circulationPumps, filtration, surge, and recirculation sized for bather load.
- PermittingPublic-pool and health-department submittals handled.
08 — Fire Protection
Fire Protection
Life-safety and suppression engineered into the building and site package — so the fire marshal and the AHJ both sign off.
- Fire suppressionSuppression-system design for amenity and support buildings.
- Fire-water supplyFire-flow demand, hydrant layout, and supply coordinated with the water system.
- Life-safety & accessEgress and fire-lane access coordinated across the site.
09 — Fiber, Network & Security
Fiber, Network & Security
The connected backbone an RV park or resort runs on — fiber to every pad, reliable Wi-Fi, and the cameras and access control that protect guests and revenue.
- Fiber-optic designGPON/FTTx architecture, split-ratio plan, optical power and loss budget, conduit and pathway design, and pad-level drops.
- Wi-Fi & networkCoverage planning, switching, and IDF/MDF layout sized for full occupancy.
- Security & access controlSurveillance coverage, gate and access control, and low-voltage coordination.
10 — Due Diligence
Land & Site Due Diligence
Know what a parcel can carry before the money is committed. We pull the records, read the site, and tell you what will and won't work.
- Feasibility evaluationsWhat the parcel supports for your intended use — density, access, utilities, and the constraints that drive cost.
- Parcel, FEMA & soils researchAppraisal-district records, FEMA flood mapping and base flood elevations, and NRCS soils, packaged into one picture.
- Regulatory & AHJ reviewThe governing jurisdiction's requirements, drainage district, OSSF and water constraints, and the permitting path.
- Development constraints memoA plain findings summary you can hand to a lender or partner.
12 — AI Consulting
Engineering-Specific AI Implementation & Consulting
Most AI consultants have never sealed a drawing. We have. Sterling built the design calculators, CAD automation, permit workflows, and the project-management platform this firm runs on — and we help other civil, MEP, and small engineering firms implement AI that actually fits how engineering work gets done.
- Custom design calculators & toolsDiscipline-specific sizing and design tools with your standards, your codes, and a real PE seal block — the way we built our own OSSF designers.
- CAD & Civil 3D automationAutomate the repetitive drafting, sheet-set, and plan-production work that eats billable hours.
- Permit & AHJ workflow automationProperty research, code lookups, and submittal packages assembled in minutes instead of days.
- Project & client softwareProject management, a client status portal, and invoicing — the same platform we run, tailored to your firm.
- Practical advisoryWhere AI pays off in an engineering practice, and where it doesn't — from a firm that has actually shipped it.
Not sure which disciplines your site needs?
Tell us about the project. We'll scope exactly what's required — and nothing that isn't.