Gravel & dirt roads

Speed bumps for gravel roads

Bolt-down rubber speed bumps need a firm surface to hold their anchors, so on gravel or dirt the reliable method is to pour a small concrete pad (or asphalt strip) under the bump and bolt into it. Loose gravel alone lets anchors work free. For ranch and private gravel roads we usually recommend the 3 in modular profile at $260–$520 per 12 ft lane.

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Private road where a rubber speed bump will be installed on a concrete pad

Key specs at a glance

Surface needed	Concrete or asphalt pad
Recommended height	3 in
Price per 12 ft lane	$260–$520 + freight
Install time	~30 min after pad

2.4-inch heavy-duty rubber speed bump with black and yellow segments, white directional arrows and bolt holes

Recommended model

3-Inch Modular Rubber Speed Bump

Cars, pickups and farm traffic at low speed — the modular profile slows them for less per lane.

Height: 3 in
Center module: 39 in and 20 in
End caps: 10 in each
Width (travel length): 15 in
Target speed: ≤ 10 mph
Material: Recycled rubber, UV stable

Pour a pad first

A strip slightly wider and longer than the bump gives the anchors something solid.

Grade the approach

Keep gravel level on both sides so tires don't dig ruts at the edges.

Mind drainage

Leave water a path around the bump ends so it doesn't pond or wash the base.

Frequently asked

Can you put a speed bump on a gravel road?

Yes, but bolt-down rubber should be anchored into a concrete or asphalt pad, not loose gravel.

Will the anchors hold in dirt?

Not reliably. Anchors in loose material work free under traffic; a pad solves it.

How much does it cost per lane?

List price per 12 ft lane is $260–$520 for the 3 in modular profile and $360–$660 for the 2.4 in steel-plate heavy-duty profile, plus LTL freight. Pallet and container orders are priced below list.

How long does installation take?

Bolt-down install takes two people about 30 minutes per 12 ft lane with a hammer drill and the included anchors. No paving contractor and no cure time.

Do you ship nationwide?

Yes. Every kit is in stock in the USA and ships by LTL freight to all 48 contiguous states. Freight is quoted to your ZIP code.

Free download

Spec sheet & price guide (PDF)

Both profiles, dimensions, load rating, price per 12 ft lane and what we need to quote freight. One field — no phone call required.

Request pricing

Price your speed bumps for gravel roads

Send lane width and lane count — we reply with a landed price including freight within 24 business hours.

Next step

Private roads

Installation

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