Concrete vs Water-Filled Barriers: Pros, Cons & Use Cases
Both concrete barriers and water-filled plastic barriers serve the same fundamental purpose: deflecting and containing vehicles. But they differ significantly in cost, weight, mobility, and application.
Quick Comparison
| Feature | Concrete Barriers | Water-Filled Barriers |
|---|---|---|
| Weight (per 2m unit) | 700–1,500kg | 30kg empty / 500–700kg filled |
| Mobility | Crane / telehandler only | Manual (empty), forklift (filled) |
| Setup time | Hours (crane required) | Minutes (fill on site) |
| Impact performance | Excellent | Good (limited by mass) |
| Durability | 30+ years | 5–15 years |
| Cost (per 2m unit) | £200–£600 | £80–£200 |
| Storage | Large footprint, outdoor only | Stackable when empty |
| Highway approval | Yes (BS EN 1317) | Yes (certified products) |
Concrete Barriers: Advantages & Best Applications
- Highest mass and impact resistance
- No filling required — deploy as delivered
- Unaffected by vandalism (draining is not possible)
- Long service life — 30+ years with no maintenance
Best for: Motorway roadworks, construction site perimeters, port security, permanent vehicle segregation on industrial sites.
Water-Filled Barriers: Advantages & Best Applications
- Stackable when empty — highly efficient transport and storage
- Can be repositioned by site teams without crane (when empty)
- Quick deployment with a water pump and hose
- High-visibility colours (orange, red, white, yellow) built-in
Best for: Event traffic management, short and medium-term roadworks (up to 12 months), construction site pedestrian segregation.
Key Consideration: Vandal Draining
Water-filled barriers are vulnerable to vandal draining — a deliberate drain makes the barrier ineffective. For security-critical applications, use anti-tamper drain caps. For critical vehicle lines, consider concrete barriers.
Cost Comparison for a 50m Barrier Line
| Product | Product cost | Transport/install | Total |
|---|---|---|---|
| Concrete barriers (25 × 2m units) | £6,250–£15,000 | £2,000–£5,000 | £8,250–£20,000 |
| Water-filled barriers (25 × 2m units) | £2,000–£5,000 | £500–£1,500 | £2,500–£6,500 |
Browse our concrete and water-filled barrier range for current pricing and specifications.