Each state is required under 49 U.S.C. 5304(g) to develop a statewide transportation improvement program (STIP) covering a period of at least four years. The STIP is a staged, multi-year, statewide intermodal program of transportation projects, consistent with the statewide transportation plan and planning processes as well as metropolitan plans, transportation improvement programs (TIPs), and planning processes. The STIP must be developed in cooperation with the metropolitan planning organizations (MPOs), public transit providers, and any Regional Transportation Planning Organizations (RPO) in the state, and must be compatible with the TIPs for the state's metropolitan areas.
INDOT STIP is updated monthly throughout the course of the year for project additions, advancements, deletions, and other types of modifications. These are accomplished either by a formal STIP Amendment or a Modification.
STIP Amendment - Before FHWA/FTA can approve a STIP Amendment the associated MPO's TIP must also be amended, if the project is within the geographic boundaries of the MPO. Generally, the MPO TIP may only be amended by a formal resolution of the MPO Executive Board. TIPs/STIP require formal amendments based on the following criteria:
· Adding a new project that was not included in the current STIP.
· Adding a new phase of a project not currently included in the STIP (preliminary engineering, right-of-way acquisition, construction).
· Changes where project costs have increased or decreased significantly.
· Changes in project scope.
The public is encouraged to provide feedback on INDOT's STIP document, which lists all projects expected to be funded in a four year period with Federal funds and state-funded projects that have been deemed as Regionally Significant. Please use this form to let INDOT know of any roadway transportation improvements that you believe are needed on Indiana’s interstates, U.S. highways or state highways. Your input will enable INDOT to more effectively identify projects and improvements that will enhance safety and allow for continued improvement of Indiana's transportation network. Please provide comments by completing the comment form below, by email or by writing to:
Indiana Department of Transportation
Attn: Cat Seely
100 N. Senate Ave.
IGCN N758-Transportation Planning
Indianapolis, IN 46204
The scheduled INDOT STIP amendments close and the draft amendment is then posted here for public comment.
Draft STIP Documents
Currently taking comments on:
G26-12 (group modification) - the comment period is open for 7 day (end December 7, 2025).
G26-13 (group modification) - the comment period is open for 7 day (end December 14, 2025).
Please click the link below and fill out the Draft STIP Documents Form to leave a comment.
These Amendment are closed for comments. This is for archive purposes only.
A26-01(rural) - the comment period is open for 7 days (end September 25, 2025).
STIP G26-01 (group modification) - the comment period is open for 7 days (end September 25, 2025).
G26-02 (group modification) - the comment period is open for 7 days (end October 6, 2025).
A26-MPO-01-ATCAPC - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01-BMCMPO - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01-CAMPO - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01-DMMPC - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01-EMPO - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01-IMPO - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01-KHCGCC - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01-KIPDA - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01-MACOG - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01B-MCCOG - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01-NIRCC - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01-NIRPC - the comment period is open for 3 days (end October 8, 2025).
A26-MPO-01B-OKI - the comment period is open for 3 days (end October 8, 2025).
G26-03-(group modification) - the comment period is open for 7 days (end October 12, 2025).
G26-04-(group modification) - the comment period is open for 7 days (end October 16, 2025).
A26-02 (rural) - the comment period is open for 7 days (end October 23, 2025).
G26-05 (group modification) - the comment period is open for 7 days (end October 23, 2025)
G26-06 (group modification) - the comment period is open for 7 days (end November 3, 2025)
G26-08 (group modification) - the comment period is open for 7 day (end November 16, 2025).
STIP_A26-MPO-02-CAMPO - the comment period is open for 3 days (end November 8, 2025).
STIP_A26-MPO-02-DMMPC - the comment period is open for 3 days (end November 8, 2025).
STIP_A26-MPO-02-IMPO - the comment period is open for 3 days (end November 8, 2025).
STIP_A26-MPO-02-KIPDA - the comment period is open for 3 days (end November 8, 2025).
STIP_A26-MPO-02-MACOG - the comment period is open for 3 days (end November 8, 2025).
STIP_A26-MPO-02-NIRCC - the comment period is open for 3 days (end November 8, 2025).
STIP_A26-MPO-02-THAMPO - the comment period is open for 3 days (end November 8, 2025).
G26-07 (group modification) - the comment period is open for 7 days (ends November 10, 2025).
G26-09 (group modification) - the comment period is open for 7 day (end November 23, 2025)
G26-11 (group modification) - the comment period is open for 7 day (end November 23, 2025)
G26-10 (group modification) - the comment period is open for 7 day (end November 30, 2025).
A26-03 (rural) - the comment period is open for 7 days (end November 30, 2025).