Manual Drop Arm Vehicle Barriers – w/ Concrete Base

One Portable Barrier. Multiple Applications. Unlimited Flexibility.

Not every roadway needs an expensive automated security gate or permanent access control system. Many businesses, government agencies, municipalities, and property managers simply need a reliable, highly visible way to close a road, restrict vehicle access, direct traffic, or clearly communicate that an entrance is closed.

The MANTIS Portable Security Gate and Manual Drop Arm Barrier is designed for exactly these applications. Combining the functionality of a temporary road closure gate, manual boom barrier, portable traffic control device, and visible vehicle access deterrent, MANTIS provides a versatile solution for locations where conventional gates are too expensive, difficult to install, or impractical.

Its heavy-duty concrete base, hot-dip galvanized steel structure, lightweight aluminum cross arm, and balanced counterweight mechanism make MANTIS easy to operate and relocate. High-visibility reflective tape and UV-resistant aluminum warning signs with 3M reflective sheeting help motorists recognize restricted access, roadway closures, and security checkpoints during both daytime and nighttime conditions.

With aluminum barrier arms available up to 20 feet long, a single MANTIS can control a wide entrance, while two opposing units can span roadways up to 40 feet wide.

No electricity. No hydraulics. No permanent foundation. Just simple, dependable manual roadway access control.

Data Centers and Critical Infrastructure Access Control

Modern data centers, telecommunications facilities, utility substations, and technology campuses often have multiple access points that require varying levels of vehicle control.

While primary entrances may utilize sophisticated electronic access control systems, secondary service roads, maintenance entrances, emergency access routes, and construction entrances may benefit from a simpler manual security gate.

MANTIS is ideal for:

• Data center construction entrances and contractor checkpoints.

• Secondary access roads around server campuses.

• Utility service entrances and equipment yards.

• Telecommunications and fiber-optic infrastructure facilities.

• Temporary closures during facility expansions.

• Restricted maintenance and delivery access roads.

• Separating construction traffic from active operational areas.

• Establishing visible stopping points for contractor credential checks.

For expanding data center campuses, MANTIS offers a portable vehicle access control solution that can be relocated as new buildings, utility corridors, and construction phases are completed.

The barrier clearly communicates that a roadway is restricted and that drivers must stop for authorization before proceeding.

Where vehicle-impact protection is required, appropriately crash-rated security barriers should be used instead.

Parks, Recreation Areas, and Public Lands

City parks, county recreation facilities, state parks, campgrounds, trailheads, and public lands frequently need to restrict vehicle access during certain hours, seasons, or operating conditions.

Permanent powered gates may be unnecessary, especially at remote locations without electrical infrastructure.

The MANTIS manual road closure gate provides a practical alternative.

Common Parks and Recreation Applications

• Closing park entrances after operating hours.

• Restricting vehicle access to pedestrian-only recreation areas.

• Controlling access to campground roads.

• Closing trailhead parking areas during maintenance.

• Restricting vehicles from sports fields and recreational facilities.

• Managing seasonal closures of park service roads.

• Preventing accidental entry onto closed maintenance routes.

• Closing parking areas during special events or renovations.

• Establishing temporary access restrictions around public gatherings.

Unlike lightweight traffic barricades, MANTIS provides a substantial, recognizable gate arm with reflective markings and prominent warning signs.

Its portable concrete base allows parks departments to relocate the barrier between facilities as seasonal requirements change.

U.S. Forest Service, Forestry Roads, and Remote Access Routes

Forest roads, fire access routes, wilderness recreation areas, and remote maintenance roads often require a simple means of communicating road closures or restricted vehicle access.

These locations may have limited electrical infrastructure, difficult terrain, or seasonal operating requirements.

The MANTIS portable manual boom gate is particularly useful where a self-contained, non-powered roadway closure is desired.

Forestry and Public Land Applications

• Seasonal forest road closures.

• Temporary logging road access control.

• Trailhead and campground entrance closures.

• Restricted maintenance roads.

• Watershed protection access points.

• Wildlife management areas.

• Fire rehabilitation and restoration project roads.

• Temporary closures during hazardous conditions.

• Controlled entrances to forestry operations.

• Government land management facilities.

MANTIS requires no utility power and can be relocated using appropriate forklift equipment, making it suitable for accessible remote sites where a stable placement surface and adequate operating clearance are available.

Its galvanized construction provides corrosion resistance for outdoor environments, while reflective signage helps motorists identify closures in low-light conditions.

Municipal Road Closures, City Streets, and Public Works

Cities and counties frequently need to close roads temporarily for maintenance, infrastructure improvements, utility work, public safety operations, and special events.

Traditional cones, barricades, and temporary signs can provide important traffic guidance, but some locations benefit from a more substantial and recognizable manual gate.

The MANTIS temporary road closure barrier gives public works departments a reusable, relocatable option for managing access.

Typical municipal applications include:

• Temporary street closures.

• Road maintenance and utility construction.

• Restricted municipal service roads.

• Public works yards and equipment storage areas.

• Water treatment and wastewater facilities.

• City maintenance compounds.

• Temporary detours and restricted-access areas.

• Roadway closures during infrastructure upgrades.

• Seasonal closures of low-traffic public roads.

Because MANTIS does not require a permanent foundation, a municipality can relocate the same barrier as projects change.

For public roadways, MANTIS should be incorporated into an approved traffic-control plan with all required signs, advance warnings, and safety devices.

City Events, Festivals, Parades, and Temporary Traffic Management

Special events create unique traffic-control challenges.

Cities, event organizers, venue managers, and security personnel must often restrict access to selected streets, parking areas, service entrances, and pedestrian zones while maintaining authorized vehicle access.

MANTIS provides a visible, manually operated access gate that can be used as part of an event traffic-management plan.

Ideal Event Applications

• Festivals and outdoor concerts.

• Parades and community celebrations.

• Farmers markets and street fairs.

• Sporting events and stadium service entrances.

• Fairgrounds and exhibition facilities.

• Temporary parking lot closures.

• VIP and staff-only vehicle entrances.

• Vendor and delivery checkpoints.

• Restricted event production areas.

• Temporary pedestrian-only zones.

Security personnel can manually raise the balanced aluminum arm to allow authorized vehicles through and lower it again to communicate that access is closed.

The highly visible reflective markings and warning signs help motorists recognize controlled entrances and understand where they must stop.

Important: For crowded pedestrian events where deliberate vehicle attacks are a concern, MANTIS is not a substitute for certified hostile vehicle mitigation equipment.

Highly Visible Roadway Closure and Warning System

UV-Resistant Aluminum Signs with 3M Reflective Sheeting

One of the greatest advantages of the MANTIS is its ability to communicate clear instructions to approaching drivers.

A roadway closure is most effective when motorists can recognize the restriction early and understand what action is required.

MANTIS can be configured with high-visibility aluminum warning signs featuring UV-resistant graphics and 3M reflective sheeting, along with reflective tape on the aluminum barrier arm.

Visibility Features

• High-visibility red-and-white reflective barrier arm markings.

• Aluminum warning signs designed for outdoor exposure.

• UV-resistant sign graphics for prolonged sunlight exposure.

• 3M reflective sheeting for enhanced nighttime recognition.

• Large, easy-to-read lettering.

• Customizable warning messages.

• Prominent placement directly on the roadway closure gate.

• Visibility under vehicle headlights in low-light conditions.

• Durable construction for repeated outdoor use.

Available Warning Sign Messages

• STOP – ROAD CLOSED

• STOP – CHECK IN WITH SECURITY

• AUTHORIZED VEHICLES ONLY

• NO VEHICLE ACCESS

• NOTICE – ROAD CLOSED

• STOP – SECURITY CHECKPOINT

• PRIVATE ROAD – NO TRESPASSING

• CONSTRUCTION ENTRANCE – STOP

• ROAD CLOSED TO THROUGH TRAFFIC

• PARK CLOSED – NO VEHICLE ENTRY

Custom sign messages can be selected to match the specific application, property, or operating requirements.

Reflective signs and tape improve visibility but do not replace any legally required traffic-control devices, illumination, or advance-warning signs.

A Portable Gate, Drop Arm Barrier, and Road Closure System in One

The MANTIS is more than a conventional manual security gate.

Its portable design allows it to serve multiple functions depending on where and how it is deployed.

As a Portable Security Gate

MANTIS establishes a visible boundary at entrances to industrial properties, government facilities, private roads, and restricted-access areas.

As a Temporary Road Closure Barrier

MANTIS provides a recognizable physical gate arm across a roadway to indicate that traffic must stop and the road is closed.

As a Manual Drop Arm Gate

Its counterweighted aluminum arm can be raised or lowered with minimal physical effort, allowing authorized personnel to manage vehicle entry without electrical power.

As a Security Checkpoint Gate

MANTIS provides a stopping point where guards can verify identification, inspect delivery credentials, and direct vehicles to authorized destinations.

As a Portable Traffic Control Gate

MANTIS can help manage vehicle movement around construction projects, municipal facilities, events, and industrial operations.

As a Seasonal Access Gate

MANTIS can be used to communicate seasonal closures at parks, campgrounds, recreational areas, and maintenance roads.

Built for Portability, Durability, and Easy Operation

The MANTIS combines heavy-duty materials with a simple mechanical design that minimizes installation complexity.

Key Features and Benefits

• Portable Concrete Base: Freestanding design eliminates the need for permanent roadway foundations.

• Forklift Relocation: Integrated forklift openings allow repositioning using properly rated equipment.

• Hot-Dip Galvanized Steel: Provides durable corrosion protection for demanding outdoor environments.

• Lightweight Aluminum Barrier Arm: Combines visibility and reduced operating weight.

• Up to 20-Foot Arm Length: Suitable for wide access roads and commercial entrances.

• 40-Foot Roadway Coverage: Two opposing MANTIS units can control wide roadways.

• Counterweighted Manual Operation: Balanced design permits easy raising and lowering with minimal effort.

• Reflective Warning Signs: Customizable aluminum signs help communicate restricted access.

• Reflective Arm Tape: Enhances recognition during nighttime and low-light conditions.

• No Electricity Required: Operates independently of commercial power.

• No Hydraulic System: Eliminates hydraulic pumps, hoses, and fluid maintenance.

• Reusable Design: Can be relocated between construction projects, facilities, and temporary installations.

• Minimal Site Disruption: No trenching or permanent foundation work is normally required.

One Investment, Multiple Uses

For business owners, municipalities, government agencies, and contractors, equipment flexibility can provide substantial long-term value.

A permanently installed security gate generally remains at one location. A MANTIS portable road closure barrier can be moved and reused as operational requirements change.

A construction company can use MANTIS to close a project entrance and relocate it to another site after project completion.

A city parks department can move the barrier between seasonal recreation areas.

A data center developer can use MANTIS during construction and later redeploy it to a secondary maintenance entrance.

A public works department can maintain portable barriers for planned road closures and changing maintenance projects.

This adaptability makes MANTIS an economical solution for organizations managing multiple properties, temporary road closures, or evolving access-control requirements.

Frequently Asked Questions

What is a portable road closure barrier?

A portable road closure barrier is a relocatable device used to visibly close a roadway or restrict vehicle access without permanent installation. MANTIS uses a freestanding concrete base and manually operated aluminum gate arm to communicate roadway restrictions.

Can MANTIS be used as a security gate?

Yes. MANTIS functions as a manual security gate for controlling cooperative vehicle traffic at checkpoints, private entrances, construction sites, and restricted-access roads. It is a visible deterrent, not a crash-rated anti-ram barrier.

Does MANTIS require electricity?

No. The MANTIS uses a balanced mechanical counterweight system and requires no electrical connections, motors, batteries, or hydraulic power.

Can MANTIS close a 40-foot-wide roadway?

Yes. Two MANTIS barriers with 20-foot aluminum arms can be positioned on opposite sides of a roadway to provide visual closure across an opening up to 40 feet wide, subject to site layout and clearance requirements.

Is MANTIS suitable for parks and forest roads?

Yes. MANTIS can be used at accessible park entrances, recreation areas, campground roads, and forest service routes where a portable, non-powered access gate is appropriate.

Can the warning signs be customized?

Yes. MANTIS can accommodate warning signs displaying roadway closure, security checkpoint, authorized vehicle access, and other site-specific instructions.

Is MANTIS crash-rated?

No. MANTIS is a traffic-control and visual access-deterrent system. It is not designed or certified to stop a vehicle impact.

Control Vehicle Access Anywhere with MANTIS

From data center campuses and industrial properties to national forests, municipal streets, construction entrances, and special events, the MANTIS Portable Security Gate provides a versatile solution for temporary road closures and controlled vehicle access.

Its combination of portable concrete construction, hot-dip galvanized steel, lightweight aluminum barrier arms, reflective warning signs, and effortless manual operation makes it an effective choice wherever a highly visible, reusable roadway gate is needed.

MANTIS – Portable Security. Visible Road Closures. Simple Manual Operation.

Contact K12 Defense for pricing, arm lengths, custom reflective warning signs, and configuration options for your next project.