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Hydraulics Design

Aerial of drainage pond along roadway
Flooded residential area with rows of houses surrounded by water
Concrete box culvert with grass above and water below, surrounded by greenery
Yellow stormwater detention system with gravel and construction equipment in urban setting
Aerial view of lush landscape with scattered houses, ponds, and greenery. Date on image: 08/29/2017 10:25
Aerial view of grassy landscape with two large ponds, surrounded by forested areas and buildings in the background
Aerial view of a divided highway with a water canal and dense green forest surrounding it
Pond Design along I-75

Smart, Sustainable Hydraulics for Every Project Scale

KCA provides comprehensive hydrologic and hydraulic design services that enhance roadway safety, protect natural resources, and improve long-term system performance. Our team develops surface drainage and stormwater management plans, scour analyses, bridge hydraulics evaluations, and sediment and erosion control strategies that stand up to both today’s demands and tomorrow’s challenges.

We leverage cutting-edge modeling tools to accurately predict water behavior and design systems that meet stringent regulatory and environmental standards. Whether addressing local drainage concerns, evaluating complex watersheds, or supporting major expressway projects, KCA creates solutions that are technically sound, sustainable, and optimized for construction.

Our portfolio includes successful stormwater and drainage designs for municipal, county, state, and private clients—from small site improvements to the most complex roadway and interchange projects.

Project Types

  • Stormwater Management Facilities Design
  • Pond Siting Analysis
  • Pond Siting Reports
  • Linear Stormwater Ponds
  • Underground Storage Vault
  • French Drain Design
  • Bridge Hydraulic Report (BHR) including Scour Analysis
  • Total Maximum Daily Load (TMDL) Analysis
  • Neighborhood Drainage Problem Investigation/Improvements
  • Stormsewer/Pavement Hydraulic and Spread Analysis
  • Floodplain Analysis/FEMA Coordination and Letter of Map Revision (LOMR)
  • Scour Evaluations
  • Drainage Studies
  • Permitting
30 Hydraulics Staff Members (14 PEs)
XX Stormwater Management Systems Designed
XX Limited-Access or Expressway Projects Supported with Stormwater and H&H Modeling
XX Years of Advanced Modeling Expertise

Hydraulics Design Projects

Explore how our models, analyses, and stormwater designs have helped agencies and communities manage water safely and sustainably.

Replace Three Bridges on Service Road Inside Dominion Energy Plant within Cope Energy Generation Plant, Cope, SC

Cope, South Carolina

Full service bridge replacement project including roadway, hydrology/hydraulics, stream/wetland delineation, and structure design. This project was complicated due to the lack of existing hydraulic modeling,…
Large rusty pipes run parallel to a rural road, bordered by trees
Hydraulics Design Structures Design Roadway Design

Build Grant (Statewide) Bridge Replacements, NCDOT, Structures Management Unit (SMU) – Multiple Division

North Carolina

KCA was selected for various NCDOT BUILD Grant Bridge Replacement projects. Our work tasks have included all aspects including NEPA, roadway, hydraulics, erosion control, permitting,…
Wooden bridge over creek surrounded by lush greenery, with a sign displaying weight limits for vehicles
Bridge Maintenance Inspection Hydraulics Design Structures Design Traffic Engineering Roadway Design

NCDOT Ongoing General Engineering Services Contract (GESC) Tasks: Hydraulics, Alternative Delivery, Divisions 1,2,4,10 & 11

North Carolina

KCA has worked as a GESC in Divisions 1, 4, and 11 over the past three years and was more recently selected to work as…
Wooden bridge over a small creek surrounded by lush greenery
Alternative Delivery Hydraulics Design

Let’s Solve Your Hydraulics Challenges Together

KCA’s hydraulics experts are here to help you tackle drainage, stormwater, and hydraulic design needs with clarity and confidence. Whether you’re planning a new roadway, improving an existing corridor, or addressing site-specific water challenges, our team brings the experience and tools to deliver resilient, cost-effective solutions.