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Full Closure Detour Traffic Control Plans
The road is closed to through traffic and everyone is routed around the work on a signed detour.
Real MUTCD dimensions, a title block, and a printable sheet — no account, no cost.
Build this plan free — takes about 2 minutesWhat this setup is
A full closure moves the problem from cones to signs. Type III barricades close the roadway, ROAD CLOSED and DETOUR assemblies turn traffic at the last available intersection, and the detour route has to be signed in both directions for the whole way around. Advance warning spacing still comes off the same table, because drivers still need the same distance to react.
National MUTCD dimensions
Governing typical application: TA-20 — Detour for a Closed Street. Assumptions: urban collector, 2 through lanes, 12 ft lanes, 12 ft lateral offset, 100 ft work space, short-term duration. Rule set MUTCD 11th Ed. + 50-state/DC adoption layer + ID/ACHD profiles, rule set 2026-08 rev 4. State pages below use the same engine with that state’s adopted rule set.
| Posted speed | Advance signs A / B / C | Longitudinal buffer | Device spacing taper / tangent | Channelizing devices |
|---|---|---|---|---|
| 25 mph | 100 ft / 100 ft / 100 ft | 155 ft | 25 ft / 50 ft | 3 |
| 35 mph | 250 ft / 250 ft / 250 ft | 250 ft | 35 ft / 70 ft | 3 |
| 45 mph | 350 ft / 350 ft / 350 ft | 360 ft | 45 ft / 90 ft | 3 |
| 55 mph | 350 ft / 350 ft / 350 ft | 495 ft | 55 ft / 110 ft | 2 |
Full Closure Detour plans by state
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Questions people actually ask
What signs does a detour need in your state?
At minimum a ROAD CLOSED assembly at the closure, advance warning upstream at the table spacing, and DETOUR markers carrying the route through every turn and back to the road beyond the closure. Signing only the first turn is the classic failure — a detour that drops a driver mid-route is worse than no detour.
How far in advance do I have to warn drivers?
Use the advance warning sign spacing in the table above — it comes from the MUTCD table for your setting and posted speed. Local agencies frequently require more, and many require public notice days before the closure itself.
Can I close a road without notifying anyone?
No. A full closure affects emergency response, transit, school routes, and every business on the segment. Every road authority has a notification process, and most require it well before the closure. Confirm it with the agency that owns the road before you plan around a date.
Real MUTCD dimensions, a title block, and a printable sheet — no account, no cost.
Build this plan free — takes about 2 minutesDISCLAIMER — READ BEFORE USE
This traffic control plan was generated by an automated tool for planning and reference purposes only. It is based on the MUTCD 11th Edition Part 6 typical applications and the agency rule set selected above. It is not a certified, sealed, or professionally engineered document and has not been reviewed against actual field conditions at this site. It must be reviewed, adapted to field conditions, and approved by a qualified person — and, where required, by the permitting agency and/or a licensed Professional Engineer — before use. Field conditions govern. The user is solely responsible for work-zone safety, for conformance with all applicable federal, state, and local requirements, and for obtaining all required permits. PM Axsus disclaims all liability arising from use of this document.