Trailer Bridge Blount Island: The 53-Foot Gateway to the Caribbean

Located at 5090 William Mills Street, the Trailer Bridge Terminal is the premier asset-based link between the Florida coast and the Caribbean.

Operating under FIRMS Code LC77, this East Coast hub utilizes signature 53-foot containers to offer 45% more capacity than standard units. However, the "Trailer Bridge Way" is built on rigid precision. 

With strict Wednesday and Friday sailings, a missed 10:00 AM Thursday vehicle cutoff or a paperwork error at the Dave Rawls Blvd security gate won't just delay your load; it guarantees aggressive storage fees and a week-long delay.

Trailer Bridge Administrative and Operational Parameters

To master FIRMS Code LC77, your paperwork must be flawless. Trailer Bridge is a bonded carrier authorized for everything from general freight to hazardous materials and alcohol. If your booking number doesn't match the physical unit at the gate, the "closed-loop" system will halt your entry.

The most critical data point for dispatchers is the Vessel Cutoff. For Friday sailings, all vehicles and non-intermodal trailers (NITs) must be in the yard by 10:00 AM on Thursday. Arriving at 10:15 AM is an automatic "no-sail," resulting in a minimum $35/day storage "headache" for trailers.

Trailer Bridge Approach & The Gate: The TWIC and JAXPORT Gauntlet

Reaching the Trailer Bridge gate requires more than just a GPS; it requires a two-card security clearance. You must first clear the main JAXPORT Security Plaza at 9620 Dave Rawls Blvd.

• The Two-Card Rule: To enter unescorted, you need a TWIC card AND a JAXPORT Business Purpose Badge. If you only have a TWIC, you are subject to an Escort Fee starting at $200.00 for commercial carriers. JAXPORT no longer accepts checks, bring a money order or credit card.
• The "Headquarters" Trap: Do NOT route your drivers to 10405 New Berlin Road. That is the administrative office. All equipment drops and vehicle receiving happen strictly at the William Mills Street terminal.
• Vehicle Receiving Hours: The vehicle gate closes daily for lunch from 11:30 AM to 1:00 PM. If you arrive at 11:15 AM, you will likely be turned away until the afternoon block.

Inside the Trailer Bridge: 53-Foot Efficiency and On-Dock Rail

Once "inside the wire," the terminal functions as a high-velocity industrial engine. The yard is optimized for the 53-foot high-cube container, which allows shippers to move domestic-sized truckloads across the ocean.

• On-Dock Rail Synergy: Trailer Bridge features direct on-dock rail service via CSX. This allows containers to move from the ship directly onto railcars without an extra truck trip, drastically reducing transit times to the Midwest and beyond.
• RoRo & LoLo Capabilities: Whether you are driving a bulldozer onto a vessel (RoRo) or lifting a 53-foot box by crane (LoLo), the terminal’s 47-foot deep berths and nine gantry cranes ensure even the largest neo-Panamax ships can be serviced.
• Asset-Based drayage: Trailer Bridge operates its own fleet of 70 drivers. This means their "in-house" team knows the yard better than anyone, leading to faster Turn Times and fewer gate-side delays.

Trailer Bridge Driver Survival Guide: 9-Foot Bridges and Staging

The area surrounding Blount Island is an aging industrial landscape where a single wrong turn can be catastrophic for your equipment.

• The 9'0" Myrtle Avenue Trap: Do NOT trust consumer GPS apps (Google/Waze) in North Jacksonville. The N. Myrtle Avenue bridge has a marked clearance of only 9'0". A standard 13'6" trailer or a 9'6" high-cube container will suffer a total loss if it attempts this route. Stick to the I-295 and Heckscher Drive corridors.
• Secure Staging: There is zero "casual" parking at the port. For overnight staging, use the National Truck Parking at 120 Gun Club Road. It’s a secure, 341-space lot with CCTV and 24/7 access, located just minutes from the terminal.
• Safety Rigidity: High-visibility vests are mandatory. If you step out of your cab without one, the terminal will charge you $10.00 for a new vest on the spot.

Beat the Caribbean Cut-off: Dispatch Your Trailer Bridge Runs

Mastering the Trailer Bridge Terminal (LC77) requires a partner who understands the "53-foot Advantage" and the complexities of AES/EEI filing for used vehicles. If your dispatcher misses the 10:00 AM Thursday cutoff or forgets to verify the JAXPORT badge, your profit margin will be eaten by $200 escort fees and storage penalties.

Our intermodal dispatchers dominate the Jacksonville-to-San Juan trade lane every single day. We bypass the chaos by managing your JAXPORT security credentials, verifying 53-foot chassis availability, and routing your fleet around the 9-foot bridge hazards. You focus on the highway; we’ll annihilate the Trailer Bridge logistics headaches.

‍