Interstate 69 in Indiana
The original plan (in a DEIS prepared by INDOT in 2004, but later dropped) was for I-69 to leave the now-former I-164 alignment somewhere just east of Green River Road (exit 3) and head south (instead of turning west with I-164) for approximately before crossing the Ohio at a point near the mouth of the Green River. This portion of the route had not then been funded, as construction of the new Ohio River crossing and its approaches in both states was expected to cost approximately $800 million. Indiana and Kentucky officials had said construction on the new Ohio River Bridge would not begin until at least 2020, after two new crossings near Louisville were completed. With Indiana then preparing to break ground on SIU 3, Kentucky officials indicated that collecting tolls might be the only feasible option for completing the I-69 bridge, as traditional federal and state funding for such projects were drying up. , neither Kentucky nor Indiana officials had yet come up with the money to plan and construct this I-69 bridge.
Interstate 69 in Texas
Since the first section of US 77 between Corpus Christi and Robstown was signed as I-69, it implied that the I-69 mainline would follow the coastal (US 77) route from Victoria to Brownsville. This also implied that the branch along US 59 from Victoria to Laredo and the branch along US 281 from George West to Pharr would be signed as either three-digit spurs of I-69 (I-x69) or as separate two-digit Interstate Highways. While federal legislation designating the south Texas branches as I-69 suggested that these routes may be designated as "I-69E" (east, following US 77), "I-69C" (central, following US 281), and "I-69W" (west, following US 59), the American Association of State Highway and Transportation Officials Special Committee on Route Numbering rejected the Texas Department of Transportation's request for these three designations along the proposed I-69 branches, citing that AASHTO policy no longer allows Interstate Highways to be signed as suffixed routes. Stating that the I-69E, I-69C, and I-69W designations for the three I-69 branches south of Victoria were written into federal law, the initial denial of TxDOT's applications were subsequently overturned by the AASHTO Standing Committee on Highways, and the approval for the I-69E, I-69C, and I-69W branch designations were confirmed by the AASHTO Board of Directors, pending concurrence from the Federal Highway Administration during the AASHTO Spring Meeting on May 7, 2013. During this same meeting, the section of US 83 between Harlingen and Penitas was conditionally approved to be designated as I-2, with FHWA concurrence. The US 83 freeway in south Texas was widely anticipated to receive an I-x69 designation instead of I-2. In any case, Texas is proceeding in the same fashion as Indiana, conducting environmental studies for its portion of I-69 in a two-tier process. The mainline route through Texas will be approximately . On June 11, 2008, TxDOT announced they planned to limit further study of I-69 to existing highway corridors (US 59, US 77, US 84, US 281, and SH 44) outside transition zones in the lower Rio Grande Valley, Laredo, Houston, and Texarkana.