Stormwater &Drainage Engineering.
Drainage studies, stormwater management reports, detention and retention pond design, and culvert and channel hydraulics for development and infrastructure projects.
Practical drainage.Defensible analysis.
Stormwater work sits where regulatory compliance meets practical design.
Getting it right means understanding both the hydrology of the site and the requirements of the reviewing agency, from local ordinances to state permits and FEMA standards.
Creel provides drainage analysis and stormwater design from early feasibility through final permitting, working directly with developers, civil engineers and municipalities.
Hydrologic analysis
Rainfall-runoff modeling with HEC-HMS, TR-55 and the rational method to quantify peak flows and volumes.
Stormwater management reports
Pre and post development hydrology, drainage design and compliance, documented for permits.
Detention & retention design
Sizing and routing to meet peak flow attenuation and water quality standards.
Basin delineation & routing
Watershed and sub-basin delineation, time of concentration and hydrograph routing.
Culvert & channel hydraulics
Culverts, swales, ditches and open channels in HEC-RAS and standard methods.
Drainage impact studies
Downstream impacts of proposed development and capacity of existing systems.
Pave the site.Then hold the peak.
Runoff from a paved site arrives faster and higher. Detention stores the difference and lets it out slowly, to manage modeled discharge. Site-specific analysis is still needed to evaluate downstream effects.
Stormwater comes upon nearly every project.
- Residential subdivisions and master-planned communities
- Commercial and mixed-use development
- Road and highway drainage design
- Infill sites with limited room for stormwater
- Drainage studies for rezoning and entitlement
- Retrofit stormwater for existing developed sites
- Culvert replacement and upsizing
- Stormwater permit compliance reviews
Your team runs the site.We run the water.
Creel works as a subconsultant to civil engineering firms, handling the specialized hydrologic and hydraulic analysis while your team manages grading, utilities and layout. Deliverables are formatted to drop straight into your permit package.
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.
Relatedwork.
Send the location.Start the conversation.
Send the project location, a brief description, and any important deadline. Mention available surveys, plans, prior studies, or agency comments; supporting files can be requested after the initial inquiry.
Each engagement is scoped individually. Scope, schedule, fees, and payment terms are established in the proposal.
Agency coordination and review responses are provided as defined in the agreed scope.