Jersey Barrier Dimensions: 32-Inch F-Shape Spec & Variants

The standard jersey barrier is 10 feet long, 24 inches wide at the base, 32 inches tall, and weighs approximately 4,000 pounds. The modern F-shape profile has a 3-inch toe at the base, a 13-inch lower slope rising to an upper face, and a 7-inch top width. Taller variants exist at 42 inches (high-speed) and 54 inches (MASH Test Level 5 for tractor-semitrailer containment). 12-foot, 20-foot, and Texas single-slope profiles are common alternatives for specific applications.

A jersey barrier (sometimes called a Jersey wall or concrete jersey barrier) was originally developed by the New Jersey State Highway Department in the 1950s. The modern F-shape profile is the result of Federal Highway Administration crash testing that started in the late 1970s and refined the original J-shape geometry to reduce vehicle vault tendency.

What Are the Standard Jersey Barrier Dimensions?

The default 10-foot F-shape jersey barrier specifications:

Dimension	Value
Section length	10 ft (3.05 m)
Base width	24 in (610 mm)
Top width	7 in (178 mm)
Overall height	32 in (813 mm)
Toe height	3 in (76 mm)
Lower slope rise	13 in (330 mm)
Upper face height	16 in (406 mm)
Section weight	~4,000 lb (1,815 kg)
Concrete strength	4,000 PSI minimum

The F-shape profile geometry is what creates the redirective behavior. When a vehicle strikes the barrier at an angle, the tire rides up the lower slope, transferring impact energy through tire compression and suspension deflection rather than through cabin crushing. The 3-inch toe at the base is the geometry that distinguishes F-shape from the legacy J-shape.

For section weight at other lengths, see our breakdown of how much does a jersey barrier weigh.

What Profile Variants Exist?

Three profile shapes dominate the U.S. jersey barrier market:

Profile	Origin	Toe Height	Lower Slope	Top Width	When Specified
F-shape	FHWA crash-test refinement (1980s)	3 in	13 in rise	7 in	Modern standard for new MASH TL-3
J-shape	Original New Jersey 1950s design	3 in	10 in rise	9.5 in	Legacy match-existing only
Single-slope (Texas T-22, California Type 60)	Texas DOT, refined by Caltrans	None (constant 9.1-degree slope)	--	9 in	Better re-strike performance, easier post-crash repair

The F-shape was developed specifically to reduce the vehicle vault tendency that the original J-shape exhibited with smaller passenger cars. Federal Highway Administration crash-test data published through the FHWA Roadside Design Guide showed the F-shape kept vehicles in contact with the barrier through a wider range of impact angles and speeds than the J-shape.

For new Pacific Northwest perimeter and construction-zone work, F-shape is our default spec — unless the project abuts an existing single-slope or J-shape barrier and profile-match is the call.

What Are the Section-Length Variants?

Three section lengths cover most commercial work:

Section Length	Section Weight	Lifts per Crane Cycle	Best For
10 ft	~4,000 lb	Up to 4 with proper rigging	Most perimeter and construction-zone work
12 ft	~5,000 lb	2 to 3 typical	Slightly longer runs with reduced joint count
20 ft	~8,000 lb	1 per cycle (single-pick)	Long perimeter runs over 400 lf, truck-court work

A 20-foot section reduces joint count by half on a long run. A 1,000-foot perimeter takes 100 ten-foot sections versus 50 twenty-foot sections. The 20-foot sections cost slightly more per linear foot in the unit, but they save labor on placement and improve impact connectivity by reducing joint count. The trade-off works for runs over 400 linear feet on level ground with crane access.

What Are the Tall-Variant Dimensions?

Standard 32-inch barriers are the norm. Two taller variants exist for specific applications:

• 42-inch (high-speed) -- 32-inch standard with 10-inch top extension. Used at speeds where headlight glare from oncoming traffic is a safety issue, or where heavy vehicle profile dictates more height.
• 54-inch (MASH TL-5) -- 32-inch standard with 22-inch top extension, specifically engineered for tractor-semitrailer containment. Used on high-volume truck routes and freeway-adjacent perimeter.

Adding 10 to 22 inches of height changes section weight: a 42-inch barrier at 10-foot length runs about 5,200 pounds, and a 54-inch barrier at 10-foot length runs about 6,400 pounds.

What Connection Systems Exist?

Three connection systems dominate the market:

• Cast-in pickup loops -- two cast-in steel eyes per section, accepts a 2-point spreader bar. Fastest crane setup. Most common.
• Pin-and-loop -- horizontal steel pin engages a cast-in loop on the adjacent section. Better lateral connectivity in impact, slower install.
• Tongue-and-groove -- formed concrete profile mates section to section. Used on freeway and TL-5 work.

For most parking-lot perimeter installs, cast-in pickup loops with a steel pin keyed at the joint is the right balance.

What Concrete Strength Is Specified?

Standard precast jersey barrier is a 4,000 PSI minimum concrete mix. Higher-grade product (5,000 to 6,000 PSI) appears on TL-4 and TL-5 work where the higher impact loads demand it. Reinforcement is continuous longitudinal #4 or #5 rebar with #3 stirrups at standard spacing -- exact rebar layout varies by manufacturer, and the AASHTO MASH crash test certifies the section as a system, not just the concrete strength.

For a fuller cost breakdown, see jersey barrier cost in 2026. For purchase versus rental decisions, see jersey barrier rental cost.

What About Plastic Water-Filled Variants?

Plastic water-filled barriers (Yodock, Triton, OBO) mimic the F-shape silhouette in plastic with an internal water cavity. Standard dimensions:

Dimension	Plastic Water-Filled (typical)
Section length	6 to 10 ft
Base width	18 to 24 in
Height	24 to 42 in
Empty weight	80 to 150 lb
Filled weight (water)	1,000 to 1,800 lb

Plastic water-filled barriers are not crash-rated. Manufacturer datasheets restrict redirective performance to impact speeds below 35 miles per hour and do not carry MASH TL-3 certification. They serve channelization and short-term construction-zone control, not real crash containment.

Industry Baseline Range

Configuration	Section Weight Range
Standard 10-ft concrete F-shape, 32 in	3,800 to 4,400 lb
12-ft concrete F-shape, 32 in	4,800 to 5,400 lb
20-ft concrete F-shape, 32 in	7,500 to 8,500 lb
10-ft concrete F-shape, 42 in	5,000 to 5,500 lb
10-ft plastic water-filled, full	1,000 to 1,800 lb

These figures reflect published industry averages. Current market pricing varies significantly and actual quotes may fall well outside these ranges based on site-specific conditions, material costs, and project complexity.

Current Market Reality

Specs published by major precasters in 2026 show modest profile evolution from earlier-generation barriers. The F-shape has largely converged on the 32-inch / 24-inch base / 7-inch top profile, with most regional plants producing to that geometry. Variations exist in connection system, rebar layout, and surface finish (broom, smooth, exposed-aggregate decorative). Section weight has stayed close to 4,000 pounds at the 10-foot standard for the past two decades.

What Surface Finishes Are Available?

Four finish options appear on commercial jersey barrier:

• Broom finish -- most common. Light texture for slip resistance.
• Smooth finish -- tighter trowel finish, used when paint or sealer is planned.
• Exposed aggregate -- decorative, used on aesthetic-sensitive perimeter.
• Color-integrated -- pigmented concrete or pigmented sealer for color-match to site palette.

Most commercial perimeter projects specify broom or smooth finish. Aesthetic-sensitive sites that need color or pattern usually use crash-rated planter barriers instead, where the planting itself softens the visual impact.

Where We Specify Jersey Barriers in Oregon

Our default for new Pacific Northwest perimeter work is 10-foot F-shape, 32-inch height, MASH TL-3, cast-in pickup loops, broom finish, sourced from a regional precaster within 50 miles of the project site. For a city-specific install record, see crash barrier installation in Eugene.