---
description: Surface trail bridges properties
---

# Bridges

<figure><img src="https://3586521393-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FVaTufFv4BbKVyQLim4tI%2Fuploads%2F6eHllw67r8W21Lp1YTUv%2Fimage.png?alt=media&#x26;token=8a29785a-d56c-42ea-b9f5-9a028b7727dc" alt=""><figcaption></figcaption></figure>

## Bridge type blocks

Here, you can specify a [comma-separated type list](../../block-types#comma-separated-and-percentages) that determines the arrangement of the bridge road blocks.

{% code overflow="wrap" fullWidth="false" %}
```yaml
surface.trails.bridge.types: OAK_PLANKS
```
{% endcode %}

## Pier type blocks

Here, you can specify a [comma-separated type list](../../block-types#comma-separated-and-percentages) that determines the arrangement of the bridge pier blocks.

```yaml
surface.trails.bridge.pier-types: OAK_LOG
```
