Illinois traffic control documentation requirements
What Illinois DOT asks a contractor to record about temporary traffic control, where that requirement comes from, and how strong the evidence behind it is.
What Illinois requires
Illinois project SPs require maintaining a project traffic control diary as part of Department records.
Source: IDOT eplan example BDE SPHow DTCD satisfies it
Daily Entries + PDF Diary Generation produce the "project traffic control diary" required by IDOT BDE/Recurring SP. Multi-Format Export produces IDOT-compatible documentation as part of Department records. Personnel Tracking documents TCS presence.
What DTCD adds beyond the requirement
- Photo evidence with GPS and timestamps produces a stronger record than IDOT inspector's CMMS Diary
- CWZ 1.0 feed publishes to IDOT's data exchange
- Auto-Capture Signs and AI safety analysis automate documentation
- Public Dashboard gives IDOT region engineers real-time visibility
Note: Verify whether BDE SP is recurring/statewide vs. project-specific.
On federal-aid work, 23 CFR 630 Subparts J and K apply whatever Illinois specifies, with a compliance date of December 31, 2026 — the federal floor, explained. And after an incident the questions come from the incident, not the specification: 105 published judicial matters on that.
DTCD produces this record from the drive-through itself, and names the controlling Illinois requirement on the generated PDF. Open a sample before deciding anything.
Try it on one Illinois project See pricing
Draw the closure on a map and the builder reads the route, mileposts and county from Illinois’s own public GIS, checks bridge clearance on the route and the detour, and exports a WZDx feature, a PDF or an email. It runs in the browser — nothing is submitted or stored.
Open the Illinois builder → · open the offline build · all 50 statesWhat changes at the Illinois state line
Crews rarely work one state, and the record a neighbouring DOT expects is often named differently and cited somewhere else entirely. Here is how the states bordering Illinois compare:
| State | Citation | Evidence we have |
|---|---|---|
| Indiana | Section 801 (Traffic Controls for Construction and Maintenance) — referenced via INDOT GIFE Section 2.8 | Binding language identified |
| Iowa | Section 2528.01.C (Traffic Quality Control) | Contract-binding spec language |
| Kentucky | Section 112 (Maintenance and Control of Traffic) + standard Project Note "II. TRAFFIC COORDINATOR" | Contract-binding spec language |
| Missouri | Not yet verified | Agency source, medium confidence |
| Wisconsin | Standard Spec 643.3.1(5); Construction and Materials Manual 145.9.6 | Binding language identified |
All 50 states → · The full 50-state analysis, with every citation →