Posted: April 13, 2022
Last modified: April 14, 2022

The I-4 Ultimate project isn’t just about building roads, it’s about providing the Ultimate travel experience for all types of transportation users, including cyclists and pedestrians improving connections for everyone across Central Florida.

One of those features is a new pedestrian tunnel that makes crossing State Road (S.R.) 436, one of Central Florida’s busier and wider thoroughfares, much safer and easier. Crossing S.R. 436 at any point along its route can be an inconvenience. That process was even more difficult near the interchange with Interstate 4 (I-4). The tunnel, located just west of the interstate, lets pedestrians and cyclists cross under S.R. 436 without waiting for a traffic signal, and without bringing traffic to a standstill. Accessible by stairs and ramps from nearby sidewalks, the tunnel is 12 feet wide and 10 feet tall. It includes a skylight at its midpoint and is always lit. Altamonte Springs Police Department can monitor activity in the tunnel via security camera.

Newly constructed sidewalks on the north and south side of the S.R. 436 bridge now provide safer passage over I-4 traveling to and from Uptown Altamonte. After using the signalized crosswalks, pedestrians and cyclists are guided away from traffic on the bridge between architectural colonnades and landscaped beds. The combination of the tunnel and sidewalks complements the S.R. 436 interchange redesign, which streamlines vehicle through traffic.

The tunnel’s proximity to nearby shopping, restaurants, and the Seminole Wekiva Trail enhances work and play activities through Seminole County’s southernmost I-4 interchange.