# Foundation

This section defines spread footing foundations for the substructure.

{% hint style="info" %}
**Navigation:** Substructure > Foundation
{% endhint %}

## Overview

Foundation elements provide support for pier columns. This section covers:

* **Rectangular:** Rectangular spread footings

## Sections

| Section                                                                                                                                                                 | Description                        |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------- |
| [Rectangular](https://docs.openbrim.org/examples/concrete-bridge-examples/example-concrete-u-girder-bridge/substructure-ex1-cug/foundation-ex1-cug/rectangular-ex1-cug) | Define rectangular spread footings |

{% hint style="success" %}
Complete foundation definitions to establish the base support for pier columns.
{% endhint %}