Montgomery County Transportation Address: 1500 Research Forest Dr, Shenandoah, TX 77381 Phone: (936) 441-9121 Lawyers, County Govt-Transportation Programs, County Government Transportation Programs Other Businesses: Hird Law Firm PC at 1644 Research Forest Dr, Shenandoah, TX 77381 BB&T at 18410 Interstate 45 S, Shenandoah, TX 77384