# F Shape Barrier
This section defines F-shape concrete barriers on both sides of the bridge deck.
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**Navigation:** Superstructure Attachments > F Shape Barrier
For detailed parameter explanations, see the [F Shape Barrier Reference](https://docs.openbrim.org/templates/concrete-u-girder-bridge-workflow/superstructure-attachments-cug/barrier-cug).
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## Steps
### Step 1: Navigate to F Shape Barrier
Navigate to **Superstructure Attachments > F Shape Barrier** in the tree view.
### Step 2: Assign Deck Reference
Define barriers on both left and right sides of the deck:
1. Click the **three-dots icon** on **Deck** cell
2. Set **Deck1** for both barrier entries
### Step 3: Select Orientation
Select the **Orientation** for each barrier (Left or Right side).
### Step 4: Assign Material
Set the concrete **Material** to **Fc\_4ksi** for both barriers.
### Step 5: Define Transverse Offsets
Enter the **Start Transverse Offset** and **End Transverse Offset** values.
Quick Tip: Transverse Offset Direction
Offset values use the PGL (Profile Grade Line) as the reference point.
### Step 6: Configure Dimensions
Navigate to the **Dimension** tab and enter the F Shape Barrier dimension parameters.
Quick Tip: Barrier Function in Analysis
Barriers are included in the FE model to distribute wind forces across the structure.
## Verification
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The completed F Shape Barriers are shown below.
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