Floodplain & StormwaterEngineering.Direct Access to Your Engineer.
HEC-RAS modeling, drainage studies, floodplain analysis, FEMA map revision support, and stormwater design for civil engineering firms, developers, property owners, and public-sector clients.
Illustrative example—not a site-specific engineering result.
Four disciplines.One water problem.
Open any of them for the work, the deliverables and the tools behind them.
Floodplain EngineeringCLOMR · LOMR · No-rise · Floodway
Hydrologic and hydraulic analysis, FEMA map revisions and regulatory compliance for projects in and around Special Flood Hazard Areas. From initial screening through the agreed analysis and review scope.
Explore floodplain engineeringHEC-RAS · HEC-HMS · ArcGIS
Stormwater & DrainageStudies · Ponds · Culverts
Drainage studies, stormwater management reports, detention and retention pond design, and culvert and channel hydraulics, from early feasibility through final permit.
Explore stormwater & drainageHEC-HMS · TR-55 · Rational method · HEC-RAS
Development SupportFeasibility · Due diligence · Entitlement
Early engineering on floodplain and drainage constraints, to identify constraints and permitting considerations. Early analysis helps inform project decisions.
Explore development supportScreening · Assessment · Agency coordination
Municipal SupportMaster plans · Complaints · Grants
An on-call floodplain and stormwater engineer for cities, counties and public works departments that don’t carry one on staff.
Explore municipal supportCapacity analysis · CIP planning · FEMA mitigation grants
Water follows the math. We do the math first.

Direct access.Clear communication.
Matthew Creel, P.E.
Principal Engineer
Texas-licensed professional engineer
I’m Matthew Creel, the engineer behind Creel Flood & Stormwater Engineering. My work focuses on hydrology, hydraulics, floodplain analysis, and stormwater design.
When you contact Creel, you speak directly with the engineer doing the work.
Every project asksone question first.
Water decides whether a site is buildable, whether a permit clears review and why a street floods. Pick the question you’re holding.
Can I build here?
Flood zone screening, drainage constraints and permitting risk, answered before you or your client close on the land.
Development support Civil firms & plannersWill it pass review?
Hydrologic and hydraulic analysis and sealed deliverables formatted to drop straight into your permit set.
Your H&H team Cities & public worksWhy does this street flood?
Complaint investigations, capacity studies, drainage master plans and grant exhibits, without adding staff.
Municipal support AttorneysDid the development cause it?
Independent hydrologic and hydraulic review, documented clearly enough for people who aren’t engineers.
Expert reviewFive sheets.A clear process.
- 01
Flood zones, soils, outfalls and the rules that apply, during initial screening.
- 02
Rainfall to runoff to water surface, in HEC-HMS and HEC-RAS.
- 03
Ponds, pipes and grading that make the numbers work.
- 04
A sealed report written for the reviewer who has to approve it.
- 05
Agency coordination and review responses are provided as defined in the agreed scope.
Illustrative example—not a site-specific engineering result.
The “100-year flood”isn’t once a century.
It’s a flood with a 1% chance of happening in any given year. Pick a storm and watch the water find its level.
Straightanswers.
What should I send to get started?
Send the project location, a brief description, and any important deadline. Mention any surveys, plans, reports, or agency comments you already have. You do not need a complete package to make an initial inquiry.
Can Creel support our civil engineering team?
Creel provides specialized hydrologic and hydraulic support that can be scoped around your team’s project requirements and deliverables.
How are fees and schedules established?
Each assignment is evaluated individually. The proposal establishes the scope, deliverables, schedule, fees, and payment terms.
Does submitting an inquiry start an engineering engagement?
No. An inquiry starts a conversation. Engineering services begin under a separate written agreement.
Tell Me AboutYour Project
Send the project location, a brief description, and any important deadline. I’ll review the information and contact you to discuss the scope and next steps.