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Drainage Remediation

Diagnosing and solving stormwater drainage problems

When stormwater pools where it shouldn't, erodes a slope, or floods a structure, the fix starts with understanding why. Colman Engineering solves drainage remediation challenges across Virginia, diagnosing the cause of a drainage problem and designing a practical solution.

Benefits

Drainage Remediation

Fixes that address the real cause

We diagnose why the drainage is failing before designing a fix, so the solution targets the actual problem. That helps protect you from spending money on a remedy that only treats the symptom.

Practical, buildable solutions

We design remedies that fit the site, the budget, and how the property is used. The goal is a fix that works and that a contractor can reasonably build.

Relief from a recurring problem

A well-designed remediation addresses the source of persistent flooding or erosion rather than only the visible symptom. That can reduce recurring damage and maintenance.

From diagnosis to a designed drainage fix

We start by investigating the drainage problem: where the water comes from, how it moves, and why the current system is not working. We analyze the contributing area and the site conditions to understand the cause. From there we develop and evaluate remedy options, from regrading and new conveyance to added capacity or BMPs, and design the chosen solution. We can prepare the plans for construction and any required review, and coordinate the fix with the rest of the site.

Use Cases

Drainage remediation fits when water is causing a recurring problem you need resolved.

01

Water is flooding or ponding

Runoff collects where it shouldn't, near a structure, a yard, or a low spot. We diagnose the cause and design a fix.

02

Erosion is damaging your property

Concentrated flow is cutting into slopes, channels, or structures. We design remediation to slow, redirect, or manage the water.

03

An existing drainage system is failing

Pipes, ditches, or facilities aren't keeping up or have deteriorated. We evaluate the system and design the improvements it needs.

Tips and FAQs

Effective remediation depends on correctly diagnosing the cause, and drainage problems often originate upstream or off site, so the investigation may need to look beyond your immediate property. Some fixes are simple regrading; others involve new conveyance, added capacity, or coordination with neighboring properties or a locality. We explain what's driving the problem and what a durable fix is likely to involve.

Why does my drainage keep failing?

Common causes include undersized or deteriorated systems, changes to upstream conditions, poor grading, or concentrated flow. We diagnose the specific cause before recommending a fix.

Do you look beyond my property?

Often, yes. Drainage problems frequently originate upstream or off site, so understanding the contributing area is important to a lasting solution.

What kinds of fixes might you recommend?

It depends on the cause, but options range from regrading and new conveyance to added capacity, energy dissipation, or stormwater BMPs. We design the remedy that fits the situation.

Will the fix hold up long term?

A remedy grounded in the correct diagnosis and designed for the actual flows is far more durable. We aim for solutions that resolve the problem rather than defer it.

Contact Us

We're here to support you and your goals. Reach out to our team to get started. 

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