23. He has hit pipes and wires that were flagged and lost - but the East Coast likes water surveys

Record details

Video ID

0ePCyLn5PXs

Published

2025-12-27

Availability

Public

Duration

0:31

Transcript

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Description snapshot

In this clip of The Pump Track Chat Podcast, Brandon Hetrick shares that generally, east coast builds require a water survey.

Hear the full conversation at https://youtu.be/6W4qgR5tTQw?si=Fl8RffWXZjd6u7OG

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—

A water survey for a pump track is basically a focused drainage and site‑water assessment—a way to understand how water currently behaves on the land and how it will behave once the track is built.
Here’s what a water survey would typically include, shaped by those drainage‑survey practices:

💧 1. Pre‑survey planning
Before anyone steps on site, the survey team gathers:
Existing drainage maps
Soil data
Aerial photos
Local stormwater requirements
This mirrors the “pre‑survey planning” phase described in drainage‑survey best practices.

🌧 2. Mapping how water currently moves
On‑site work focuses on:
Slopes and natural flow paths
Low spots where water pools
Areas prone to erosion
Existing drains, swales, culverts, or stormwater outlets
Drainage surveys often use tools like CCTV or connectivity mapping to understand how water moves through subsurface systems. For a pump track, this helps determine whether the site can shed water or needs engineered help.

🪨 3. Soil and infiltration assessment
A pump track depends on stable, well‑drained soil.
 A water survey would test:
Soil type and permeability
How quickly water infiltrates
Whether the soil weakens when saturated
This aligns with the soil‑investigation steps in drainage and land‑survey guidance.

🕳 4. Identifying risks
Using the data, the survey flags issues such as:
Poor outlets for drainage (a major concern in drainage investigations)
High groundwater
Erosion‑prone slopes
Areas where water could undermine rollers or berms

🛠 5. Designing drainage solutions
Finally, the survey recommends how to manage water safely, such as:
Regrading to improve flow
Adding swales or French drains
Installing subsurface drainage
Creating stable outlets for stormwater

These steps mirror the “design and implementation” phases in drainage‑survey best practices.

🧭 In short
A water survey for a pump track is a site‑specific drainage investigation that answers three questions:
Where does water come from?
Where does it go now?
How do we keep it away from the track?

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Transcript

I've hit pipes and wires that we've had flagged and they got lost. And so I
flagged and they got lost. And so I don't think that's really a geological
don't think that's really a geological feature thing, but
feature thing, but the only thing I can think of is just
the only thing I can think of is just the water sheeting. I know generally
the water sheeting. I know generally east coast builds want to see some sort
east coast builds want to see some sort of water survey.
of water survey. >> Ah, okay. Okay. I mean, that makes
>> Ah, okay. Okay. I mean, that makes sense. So, I appreciate you kind of
sense. So, I appreciate you kind of giving me insight on that side because I
giving me insight on that side because I I didn't think about No, I did think
I didn't think about No, I did think about the drainage a little bit, but the
about the drainage a little bit, but the water survey

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