The Iowa Transportation Commission released its draft 2021-25 five-year construction plan at its meeting earlier this month.
I guess I can’t really call it in analysis if I’m just condensing the existing information? Anyway, here are current estimated completions (in fiscal years) for the big stuff, with some extrapolations:
- Council Bluffs interstate project: Mostly completed in 2022, although I believe six-laning I-80 southwest of US 6 remains in future plans
- I-29: Rebuilding IA 141 exit in 2023
- I-35: Six-laned between Ankeny and IA 210 in 2025; beginning of work on the east mixmaster in 2023; grade-for-six-pave-for-four between IA 92 and near the Cumming exit
- I-74 bridge replacement complete in 2021, removal of old bridges in 2022
- I-80: Six-laned between the east side of Iowa City and West Branch in 2023 (the present EB lanes will be the median area); six-laned across the Skunk River (or only one direction?) in 2022 (see post from 2015); six-laned through the IA 146 interchange in 2022; six-laned from the former Alice’s Road to Jordan Creek Parkway in 2025; six-laned across the North/South Raccoon River in 2022/24; rebuilding 1st Avenue exit in Coralville in 2024
- I-80/380 interchange work through 2023
- I-380: New Tower Terrace Road exit in 2022, redone Boyson Road exit in 2025
- US 18/218 interchange at Floyd in 2022
- US 30 four-laned in the rest of Benton County in 2022-23; IA 21 interchange in 2022; freeway conversion between Ames and Nevada in 2024; Missouri Valley bypass in late 2020s (grading 2025).
- US 61 four-laned from Burlington to one mile north of H40/south end of the Mediapolis bypass in 2021; Mediapolis bypass in 2024; north of Mediapolis to north of IA 78 (with new interchange) in 2026.
- US 63 Oskaloosa bypass in 2024, from the Leighton corner to 210th Street, a decade after the first proposal
- US 218 slight relocation/conversion to controlled-access freeway between Janesville and Waverly in 2025
- IA 9 Mississippi River bridge replacement in 2024
- IA 17 relocation east of Boone in 2022
- IA 92 reconstruction between US 218 and IA 70 in 2023
- IA 150 Urbana curve changed to four-way intersection in 2022
- Business US 20 (Fort Dodge): Kenyon Road bridge replacement over the Des Moines River in 2024