---
title: "45 MPH Speed Zone Ahead Sign W3-5a - MUTCD Compliant"
description: "MUTCD W3-5a 45 MPH Speed Zone Ahead. Size: 24\", 30\", 36\", Standard 2 Hole: Facilitates easy and secure mounting., MUTCD Code: W3-5a."
url: "https://www.trafficthingz.com/products/mutcd-w3-5a-45-mph-speed-zone-ahead"
date_modified: "2026-10-09T13:08:01-07:00"
---

## MUTCD W3-5a 45 MPH Speed Zone Ahead

$52.42 – $145.67 · MUTCD W3-5a · Lead time confirmed after order

### Variants & pricing

| Size & Sheeting | SKU | Price |
| --- | --- | --- |
| 24" Engineer Grade Orange Sheeting | W3-5a-0024-EGR-ORG | $52.42 |
| 24" High Intensity Prismatic Orange Sheeting | W3-5a-0024-HIP-ORG | $56.00 |
| 24" Diamond Grade Orange Sheeting | W3-5a-0024-DMG-ORG | $65.82 |
| 30" Engineer Grade Orange Sheeting | W3-5a-0030-EGR-ORG | $79.62 |
| 30" High Intensity Prismatic Orange Sheeting | W3-5a-0030-HIP-ORG | $85.22 |
| 30" Diamond Grade Orange Sheeting | W3-5a-0030-DMG-ORG | $100.58 |
| 36" Engineer Grade Orange Sheeting | W3-5a-0036-EGR-ORG | $115.48 |
| 36" High Intensity Prismatic Orange Sheeting | W3-5a-0036-HIP-ORG | $123.55 |
| 36" Diamond Grade Orange Sheeting | W3-5a-0036-DMG-ORG | $145.67 |

### Key specs

| Spec | Value |
| --- | --- |
| Gauge | 0.080 |
| Standard 2 Hole | Facilitates easy and secure mounting. |
| Warranty | Engineer Grade ~7 yr / High Intensity Prismatic ~10–12 yr / Diamond Grade ~12 yr — typical manufacturer term by sheeting grade |

### Description

Introducing our Traffic Safety Workzone Signs, specifically engineered to meet the stringent MUTCD guidelines under code W3-5a. Designed for "45 MPH Speed Zone Ahead" applications, these signs are essential for alerting drivers to upcoming speed reductions, ensuring safer driving conditions.

- Type: MUTCD W3-5a 45 MPH Speed Zone Ahead
- Product Code: W3-5a
- MUTCD Code: W3-5a
- Gauge: 0.080

Sheeting Options:

- Engineer Grade Prismatic: Reliable reflective sheeting for standard visibility.
- High-Intensity Prismatic (3M): Enhanced reflectivity for improved visibility in various lighting conditions.
- Diamond Grade (3M): Premium reflectivity for maximum visibility and safety.

Material:

- Alloy: 3105 - Known for its strength, durability, and resistance to corrosion.

Installation:

- Standard 2 Hole: Facilitates easy and secure mounting.

Our W3-5a "45 MPH Speed Zone Ahead" signs are crafted with precision and high-quality materials, ensuring they remain effective and visible under all weather conditions. Ideal for both temporary and permanent installations, these signs play a crucial role in traffic management by preparing drivers for reduced speed zones ahead.

Choose our W3-5a "45 MPH Speed Zone Ahead" signs for dependable, high-visibility traffic control that meets all MUTCD guidelines, enhancing the safety and compliance of your work zones.

Product page: https://www.trafficthingz.com/products/mutcd-w3-5a-45-mph-speed-zone-ahead
Request a quote: https://www.trafficthingz.com/contact?product=mutcd-w3-5a-45-mph-speed-zone-ahead