During the 2025 IRWA Region 2 Fall Seminar (https://irwaregion2.org), appraisers, right-of-way professionals, and industry leaders gathered to explore complex valuation challenges across Texas. While we weren’t presenting this time around, we appreciated the deep dives, and highlighted the trends and stories that matter.
Reimagining I-35 in Austin
We heard insights on the I-35 Capital Express Central project—a $4.5 billion initiative on I-35 through downtown Austin, that our ROW market leader Mario Caro, MAI, AI-GRS, SR/WA, is currently working on. The project will include removing upper decks of I-35 and building two lowered non-tolled high occupancy lanes in each direction, constructing a boulevard segment through downtown, tunneling the main lanes of I-35, shifting the downtown frontage road lanes to the west side of I-35, and creating 12 new pedestrian bridges, in addition to “capping” areas between the bridges for potential parks, plazas and gathering spaces. The project is designed to reconnect a city divided by a towering and expansive interstate highway, and will be a transformational investment that speaks not only to mobility in an active city, but to long-term land use, value, and connectivity, which are factors that appraisers track closely. For more information on the project visit: https://www.txdot.gov/mymobility35/projects/capex-central.html.
How Do You Value an Island?
One of the most engaging case studies involved a now-isolated property off the Bolivar Peninsula, being land that became an island during the construction of the Gulf Intracoastal Waterway (GIWW), which now stretches 1,100 miles from Brownsville, Texas to Florida. With no dock, no utilities, and no road access, the appraisers had to get creative.
Key considerations included:
- Tidal and submerged boundaries matter: Surveyors in Texas rely on the mean high tide line to determine where submerged land begins. The Navigable Stream Statute further clarifies how property lines shift gradually with natural changes—meaning riparian or littoral owners may gain or lose land over time.
- Submerged land isn’t yours: The State of Texas holds fee title in a public trust to submerged lands, which means the water’s edge can change what’s privately owned.
- Highest and best use was recreational: Because the island had no access or infrastructure, and it was encumbered by a spoils easement, it was deemed unsuitable for residential or commercial development.
- Valuation required heavy due diligence: Ownership history, physical characteristics, spoil easements, and environmental limitations all factored in.
This case highlighted just how nuanced shoreline and waterway valuations can be, and why understanding land boundaries, statutes, and usage limitations is essential for credible appraisal work. It was humorously noted that the ability to say you own an island had more value than what was actually here. This was a firm reminder that the imagined value of a property, an island in particular, can differ significantly from its appraised value grounded in research.
Environmental & Cultural Factors in ROW Projects
Long, linear infrastructure projects, like transmission lines, come with a host of challenges—and they aren’t just about route mapping. Speakers walked us through the environmental factors that can shape valuation, like wetlands (defined by water, plants, and soil), endangered species, and cultural sites. Permits might be needed from TCEQ, the U.S. Army Corps of Engineers, and others. One example? A project had to pause for nesting birds, and another project required hiring a professional to check on if alligator eggs had hatched. On the cultural side, pre-construction digs often turn up artifacts, from Native American tools to colonial-era items, which can mean reworking a route. These are the kinds of variables that make ROW planning and valuation both tricky and essential to get right.
Texas Growth: A Taylor-Made Case Study
Closing the seminar, Ben White offered a compelling look at Taylor, Texas, a small town at the center of global tech. Samsung’s $17 billion initial investment, announced in 2021, (per https://gov.texas.gov/news/post/governor-abbott-announces-new-17-billion-samsung-manufacturing-facility-in-taylor) and now with additional funding is bringing major growth, including over 150 expected supporting suppliers required to be located within an hour away. In response, the city implemented a new water and wastewater plan in 2023, only to realize shortly after that even more infrastructure would be needed to meet the surge in demand. His takeaway? “Development follows infrastructure,” and we’re already seeing the consequences of growth outpacing planning in towns across the country. It’s a warning to municipalities and developers alike: make sure you’re truly ready. Overlooking utility capacity, parcel readiness, and long-term policy alignment can stall momentum before it starts.
Final Thoughts
The IRWA Region 2 Seminar offered a reminder that valuation isn’t always straightforward. From shifting coastlines to multi-billion-dollar tech corridors, appraisers must weigh physical facts, legal nuance, and future potential.