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Drainage Jobs in Washington (NOW HIRING)

Parsons is looking for a talented Drainage Engineer II to join our team full-time to support one of the many large transformative transportation projects that we have either won, are currently ...

Senior Drainage Engineer

Manassas, VA · On-site

$85 - $115/hr

Senior Drainage Engineer Department: Transportation Employment Type: Full Time Location: Manassas, VA Description Rinker Design Associates (RDA) is seeking a talented Drainage Engineer with 7-12 ...

Senior Drainage Engineer

Manassas, VA · On-site

$120K - $180K/yr

Senior Drainage Engineer Department: Transportation Employment Type: Full Time Location: Manassas, VA Compensation: $120,000 - $180,000 / year Description Rinker Design Associates (RDA) is seeking a ...

Senior Drainage Engineer

Manassas, VA · On-site

$104K - $143K/yr

Rinker Design Associates (RDA) is seeking a talented Drainage Engineer with 7-12 years of experience to join our Transportation team. In this role, you'll contribute to the analysis and design of ...

Conduct drainage design activities, including the analysis of existing drainage systems, designing new drainage systems and ditches, and creating appropriate plans * Design erosion and sediment ...

Conduct drainage design activities, including the analysis of existing drainage systems, designing new drainage systems and ditches, and creating appropriate plans * Design erosion and sediment ...

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Drainage information

See Washington salary details

$59.5K

$109.7K

$147.2K

How much do drainage jobs pay per year?

As of Sep 3, 2026, the average yearly pay for drainage in Washington is $109,742.00, according to ZipRecruiter salary data. Most workers in this role earn between $95,700.00 and $124,600.00 per year, depending on experience, location, and employer.

What does a drainage worker do?

Drainage workers are professionals who install, maintain, and repair drainage systems that remove excess water from land, buildings, roads, and other structures. Their responsibilities include inspecting and cleaning drains, laying pipes, digging trenches, and ensuring proper flow and disposal of wastewater or stormwater. Drainage workers play a critical role in preventing flooding, soil erosion, and water damage, ensuring safe and functional infrastructure for communities.

What are some common challenges faced by drainage engineers on large infrastructure projects?

Drainage engineers working on large infrastructure projects often encounter challenges such as coordinating with multiple stakeholders, adapting designs to changing site conditions, and meeting strict regulatory requirements. Balancing cost efficiency with environmental and safety standards can also be complex. Effective communication and problem-solving skills are crucial, as drainage engineers frequently collaborate with civil engineers, construction teams, and government agencies to ensure project success.

What are the key skills and qualifications needed to thrive as a drainage engineer, and why are they important?

To thrive as a Drainage Engineer, you need a solid background in civil engineering principles, hydrology, and stormwater management, often supported by a relevant engineering degree. Familiarity with design software such as AutoCAD, Civil 3D, and hydraulic modeling tools, as well as professional certifications like PE (Professional Engineer), is typically required. Strong problem-solving abilities, attention to detail, and effective communication skills help facilitate teamwork and ensure regulatory compliance. These competencies are crucial for designing safe, efficient drainage systems and preventing flooding or environmental damage.

What is the difference between Drainage vs Plumbing?

AspectDrainagePlumbing
Required CertificationsDrainage certifications, often specific to sewer and stormwater systemsPlumbing licenses, including water supply and pipe installation
Work EnvironmentConstruction sites, sewer systems, stormwater management areasResidential, commercial buildings, and maintenance facilities
Industry UsageSpecializes in sewer, stormwater, and drainage system installation and repairHandles water supply, pipe fitting, and fixture installation

Drainage and plumbing are related but distinct roles. Drainage focuses on sewer and stormwater systems, requiring specific certifications and working mainly outdoors or in infrastructure projects. Plumbing covers water supply and pipe systems within buildings. Both are essential in construction and maintenance, but they serve different functions and environments.

How to get into drainage work?

To start a career in drainage work, gaining experience through apprenticeships or entry-level positions is common. Relevant skills include knowledge of plumbing tools, safety procedures, and physical fitness; obtaining certifications such as OSHA safety training can also improve job prospects.

What are popular job titles related to Drainage jobs in Washington?

For Drainage jobs in Washington, the most frequently searched job titles are:

What cities in Washington are hiring for Drainage jobs?

Cities in Washington with the most Drainage job openings:

Infographic showing various Drainage job openings in Washington as of August 2026, with employment types broken down into 1% As Needed, 86% Full Time, 10% Part Time, and 3% Contract. Highlights an 91% Physical, 3% Hybrid, and 6% Remote job distribution, with an average salary of $109,742 per year, or $52.8 per hour.

Drainage Engineer II

Parsons

Chantilly, VA

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 25 days ago


Parsons rating

7.7

Company rating: 7.7 out of 10

Based on 46 frontline employees who took The Breakroom Quiz

268th of 452 rated engineering


Job description

In a world of possibilities, pursue one with endless opportunities. Imagine Next!At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what's possible.

Job Description:

Parsons is looking for a talented Drainage Engineer II to join our team full-time to support one of the many large transformative transportation projects that we have either won, are currently pursuing, or will pursue across the nation.

Some of the larger projects are located in the states of:

  • Tennessee
  • Georgia
  • North Carolina
  • Virginia
  • Indiana

In this role, you will help deliver the design for projects that have a construction value greater than $1 billion, and in turn assist in enhancing the mobility, safety, and reliability for communities who live along and travel through these critical corridors. This position is hybrid, and the selected candidate must be centrally located to one of our Parsons offices to support regular in office collaboration.

Parsons is one of the premier design-build firms in the country with over 16,000 employees worldwide and nearly $7 Billion in revenue. Most recently, we have been the engineer of record or have assisted on some of the most challenging projects in the country, including:

  • the Gordie Howe Bridge near Detroit, MI
  • the Clear Path projects in Indianapolis, IN
  • Brent Spence project in Cincinnati, OH
  • the SR 400 project in Atlanta, GA

These high visibility Design-Build and Public Private Partnership "P3" projects and many others are career defining opportunities and offer complex, challenging work for our entire professional staff and new hires, who work seamlessly together from offices across the country.

What You'll Be Doing:

  • Supporting hydrologic and hydraulic "H&H" analysis and design of roadway drainage systems, including ditches, storm sewers, culverts, and cross drainage structures along a high profile interstate corridor
  • Preparing and reviewing drainage reports, calculations, and design documentation in accordance with state DOT, FHWA, and applicable federal and state standards, helping to advance the project through environmental review, design, and implementation
  • Developing and refining drainage layouts, plans, profiles, and details within a multidisciplinary team environment, coordinating closely with roadway, structures, environmental, and traffic design disciplines
  • Evaluating stormwater management and best management practices "BMPs" to support environmental compliance and NEPA commitments, contributing to solutions that minimize impacts to surrounding communities and natural resources
  • Assisting with responses to review comments from state DOTs, FHWA, and other stakeholders, helping to address technical issues and maintain project schedules on this fast paced, nationally significant program
  • Supporting quantity development, cost estimates, and design criteria documentation for drainage elements within the broader delivery framework
  • Participating in internal and external coordination meetings, sharing drainage insights that inform design decisions for these complex, multi segment interstate improvements
  • Working in a hybrid capacity, collaborating in person with team members from a Parsons office while also leveraging remote work flexibility

What Required Skills You'll Bring:

  • Bachelor's degree in Civil Engineering or a related engineering discipline "or equivalent"
  • 5+ years of progressive experience in roadway/highway drainage design, hydrology, and hydraulics for transportation projects
  • Working knowledge of Bentley software products including Microstation, Open Roads Designer (Drainage Module), ProjectWise and PondPak
  • Experience with standard H&H software tools (for example, FHWA HY-8 Culvert Analysis & Design, FHWA Hydraulic Toolbox, "HEC-HMS", "HEC-RAS", and storm sewer modeling tools) and familiarity with preparing drainage reports, calculations, and plan sets
  • Demonstrated experience applying state DOT and/or FHWA drainage design standards, criteria, and manuals on transportation infrastructure projects
  • Professional Engineer "PE" licensure or the ability to obtain it in the near term
  • Ability to work in a hybrid model and be centrally located to a Parsons office to support in person collaboration with the project team


What Desired Skills You'll Bring:

  • Experience delivering drainage design on interstate, managed lanes, or large corridor projects, ideally in a fast growing urban or suburban environment
  • Familiarity with state DOT standards, procedures, and plan preparation requirements and/or prior experience on state DOT projects
  • Experience working in multidisciplinary teams on complex, schedule driven programs, including P3 or design build projects
  • Working knowledge of stormwater management, erosion and sediment control, and environmental permitting considerations that support NEPA and FHWA requirements
  • Strong communication skills and the desire to grow your career on a high visibility, nationally significant transportation program that directly benefits the communities we serve

Security Clearance Requirement:

NoneThis position is part of our Critical Infrastructure team.For more than 80 years, our experts have designed and delivered the critical infrastructure that connects and protects communities around the world. We work in collaborative teams, both within the company and with our partners and customers, to plan, design, build, and modernize infrastructure. We take special pride in projects and solutions that improve communities as well as people's quality of life by promoting economic growth, enhancing mobility, and increasing sustainability and resiliency. Powered by our people, we provide the imagination necessary to support our customers' visions-and to help them see what's next!Salary Range: $74,800.00 - $130,900.00We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, Employee Stock Ownership Plan (ESOP), 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!This position will be posted for a minimum of 3 days and will continue to be posted for an average of 30 days until a qualified applicant is selected or the position has been cancelled.Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.We truly invest and care about our employee's wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest-APPLY TODAY!

Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer tohttps://www.parsons.com/fraudulent-recruitment/.


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