BRIDGE OUT - LOCAL TRAFFIC ONLY Sign Requirements

1. When a BRIDGE OUT - LOCAL TRAFFIC ONLY Sign Is Used

Warns that a bridge ahead is out (impassable) and that only local traffic should proceed toward it, with through traffic using an alternate route.

• Advance signing for a closed/impassable bridge
• Allows local access, diverts through traffic
• Used with detour route markers

2. How and Where It Applies

In the field, R11-3b Bridge Out - Local Traffic Only is typically positioned at the at the closure point (activity area), typically on a barricade. Common deployments include advance signing for a closed/impassable bridge; allows local access, diverts through traffic; used with detour route markers. Always confirm its size, retroreflective sheeting, spacing, and placement against the CA MUTCD 2026 and the reviewing agency before finalizing the traffic control plan.

3. Placement and Application Notes

Position R11-3b at the closure point (activity area), typically on a barricade.

• Place the sign where drivers have a clear, unobstructed view on approach.
• Mount at the standard height and setback from the edge of the traveled way.
• Do not mount with other signs on the same post unless space constraints require it.

4. Standard Sizes and Visibility Considerations

Typical minimum: 48" × 30".

• Choose size based on roadway speed, sight distance, and mounting location.
• Maintain high retroreflectivity for maximum night and adverse-weather visibility.

5. California Notes

Used in advance of a closed or impassable bridge in California, allowing local access while directing through traffic to a signed detour.

6. Common Field or Planning Mistakes

• Closure limits on the plan do not match the approved permit exactly.
• Closure not backed by advance warning and a signed detour.
• Local-access provisions unclear (especially for ROAD CLOSED TO THRU TRAFFIC).
• Barricade type (e.g., Type III) not specified.