Traffic control plan design
Traffic Control Plans in Columbia, SC
Lane closure, sidewalk and detour plans for work in the City of Columbia, Richland County and on SCDOT roads in the Midlands.
Plans for work in Columbia
LADMA Traffic Control draws traffic control plans for contractors, utilities and property owners working in Columbia. We cover lane and shoulder closures, sidewalk closures with pedestrian detours, full road closures with detours, and utility and fiber work.
You send the location and the scope. We draw the plan to the standards the reviewing agency uses and deliver it as a PDF you can attach to your permit application.
Three offices can be involved in Columbia: the City for city streets, Richland County for county roads, and SCDOT for state roads. Many downtown streets are SCDOT roads.
Who reviews traffic control plans in Columbia
| Road or topic | Who reviews | What to know |
|---|---|---|
| City streets | City of Columbia Planning and Development, Development Center | Temporary Encroachment application, which asks for lane closure times |
| County roads | Richland County Department of Public Works and Engineering | Application for Encroachment Permit. Notify the County Engineer, the Administrator and the Sheriff 48 hours ahead |
| State roads | SCDOT District 1 (Kershaw, Lee, Lexington, Richland, Sumter) | Encroachment Permit |
| Lane closure hours | SCDOT | Published hour restrictions cover I-20, I-26, I-77 and I-126, Assembly Street (SC 48), SC 12 and US 1 |
SCDOT publishes Procedures and Guidelines for Work Zone Traffic Control Design, a Work Zone Traffic Control Manual with typical drawings, and a state Supplement to the MUTCD. Work in SCDOT right of way needs an Encroachment Permit, filed in the EPPS online system.
Local rules to plan around
- A Pedestrian Routing Plan is required when a sidewalk or bike lane is blocked for more than 48 hours.
- The City treats full sidewalk closures as a last resort.
- On Assembly Street, SCDOT limits weekday closures in the morning, midday and evening peaks.
Richland County's Transportation Penny program funds road work across the county.
Office names, forms and lead times change. Confirm the current rules with the agency before you apply.
What to send for a quote
- The address, or the road and the nearest cross streets
- What is being closed: lane, shoulder, sidewalk or the full road
- Work hours, and whether the work is by day or by night
- How many days the closure will be in place
- Any comments you already have from the reviewing agency
See also traffic control plans in South Carolina, our guide to state DOT plan requirements, and how long a plan takes.
Need a traffic control plan in Columbia?
Tell us where the work is and what needs to close. We will come back with a quote.