Derby season restrooms are planned in three parts: the racetrack day, the festival and neighborhood events around it, and the wet ground that cold rain leaves behind. A local news report put the 2026 racetrack crowd at about 147,406, down about 6 percent from 156,710 in 2025, and that figure is the kind of reported number a count is checked against.
Key takeaways
- The racetrack day, the festival events and the neighborhood parties each need their own count and their own layout.
- Reported crowds are a check on the plan, not a promise, and the plan states which figure it used.
- Cold rain left the track and infield muddy in 2026, so the pads, boards and walkways are laid for wet ground.
- Events on Metro property, or using two or more city services, go through the Metro Special Events Handbook.
- Servicing is planned for the whole Derby week with a visit before each day's gates and a close-out after each day.
- No Louisville ratio of units per guest was found, so the count is set from the expected peak.
Three kinds of crowd in one season
The racetrack day, the Derby Festival events and the neighborhood parties are three different crowds, and each needs a count set for its own peak rather than a share of a single total.
The racetrack day is the largest crowd and the most concentrated one. People arrive in waves before each race, fill the grandstand and the infield and leave in a rush at the end of the card. A count for that day has to meet the wave, not the average over the day.
The festival events in the parks and downtown run over several weeks. Each has its own hours, its own ground and its own crowd, so each is planned as a separate site with its own count and servicing route.
Neighborhood parties and watch events are smaller, but many of them happen on the same weekend. A single unit or a small block is usually right, and the count is set for the guests who arrive together.
Reading the reported figures without over-trusting them
Reported crowd figures tell a planner the scale of the event, but they describe a past day, and a count built on them should show the basis and the margin.
The 2026 reported crowd of about 147,406 at the racetrack is a useful check, because it sits close to the figure for the year before. The 2025 figure of 156,710 was described as the largest since 2018 in the same reporting. A plan that starts from the high figure and allows for a cold, wet day will hold up in both kinds of weather.
The plan records the figure used, the source and the margin. A reviewer at the Metro office or a venue can see the same figure and understand why the count is what it is.
Attendance for Thunder Over Louisville and other shows is contested, and no crowd figure for those shows is published here. The same caution applies to any festival whose crowd is an estimate.
Wet ground is the normal condition, not the exception
Cold rain left the track and infield muddy in 2026, so the plan assumes wet ground from the start and specifies pads, boards and walkways for it.
A unit on wet grass sinks and leans, and a walkway of loose mud becomes a slide by the afternoon. The plan specifies a firm pad under each unit and a boarded or stone walkway to each block, laid before the crowd arrives.
Drainage is planned too. A block set in a low corner collects water, so units are placed on the rise and the walkways are laid to shed water to the drain or the lot edge.
The pads and walkways are checked after each rain during the week, and a soft patch is boarded before the next day's gates open.
- A firm pad under every unit
- Boarded or stone walkways to each block
- Units on the rise, not in low corners
- A check of the pads after each rain
The Metro file for a Derby-week event
An event on Metro property or using two or more city services is filed under the Louisville Metro Special Events Handbook, and the restroom plan goes into that file with the application.
The handbook, revised for 2026, says an application is needed when an event is on Metro property or when two or more city services are needed. Many Derby-week events meet one or both tests, because they use parks, streets or city services such as solid waste collection.
The handbook also says organisers are charged the cost of the city services supplied to an event, so the restroom plan should show any city service it depends on. A plan that names its services is easier to cost and easier to approve.
The handbook does not say whether portable toilets pass through its process, so the restroom plan is attached to the application as a matter of practice, and the Office of Special Events is asked to confirm.
Servicing across the whole Derby week
Servicing is planned for the whole week of events, with a visit before each day's gates, a supervisor at each day's peak and a close-out after each day, so every block is ready for the next session.
A festival week reuses the same blocks on several days. The servicing schedule is written for the whole week, with the visits set against each day's programme, and a check on each unit before the gates open.
The supervisor walks the blocks at each event's peak and calls for a pump-out where a block fills early, which in wet weather is often the case. A record of each day's visits is kept with the plan.
At the end of the week the units are reviewed against the use they had, so the plan for the next year's Derby week starts from evidence.
Placement near the racetrack and the walk
Units near the racetrack are placed outside the gates and along the walk to the grandstand, off the vehicle lanes, once the venue agrees the spots and the truck route.
The walk from the parking to the grandstand is long on a racetrack day, and the units placed on that walk catch guests before they reach the venue and on the way out. Units placed only at the gates are often ignored by people who have already walked a long way.
The vehicle lanes around the racetrack are busy, and a unit set too close to a lane is a hazard and a complaint. The spot is set off the lane with a protected walk to it.
The venue agrees the spots and the truck route before the day, and the plan records what was agreed so the supervisor does not have to renegotiate on the morning.
Checklist for the organiser
A short checklist keeps the Derby-week plan on track: the crowd figure and its source, the ground, the Metro file, the servicing and the close-out are each confirmed before the week begins.
Confirm the expected crowd and the figure it came from. Confirm the ground for wet weather. Confirm whether the Metro application is needed and when it is due. Confirm the servicing days and the close-out time for each event.
Confirm the truck routes with the venue and the city. Confirm the count against the figure. Tick each item and sign the plan so the week runs to the plan and not to memory.
Night events and the walk home
Derby-week events run into the evening, and the walk back to the car is in the dark, so the lighting and the placement are planned for the way home as well as the way in.
A park or riverfront event that ends after dark sends its crowd along the paths in the dark. The units nearest the exit are lit, and the route from the last block to the gate is marked so guests are not left guessing.
The supervisor's last round of the evening checks each block's light, stock and door, and the close-out visit is set for after the crowd has gone.
Coordinating with neighbors and the street
A Derby-week party or a street event affects the neighbors, so the plan agrees where units stand and when trucks come, and the neighbors are told what to expect.
A unit on a residential street or a shared drive is a visible change for the neighbors. The placement is agreed with the household and the street's neighbors where practical, and the truck's arrival times are kept to the hours the street accepts.
A notice to the neighbors that names the dates and the collection day prevents most complaints before they start.
Reviewing the week when it is over
At the end of Derby week the plan is reviewed against what happened, so the next year starts from the record rather than from memory.
The review compares the count with the peak each day, the blocks that ran short, the visits that were needed and any change that was made. The review is dated and kept with the plan.
A short written review is the most useful input to the next year's plan for the same ground, and it can be shown to the Metro office if it asks how the count was reached.
Frequently asked questions
How many restrooms does a Derby event need?
The count is set for the busiest hour from the expected crowd, using reported figures for the racetrack day and the organiser's estimate for festival events. Metro guidance does not set a ratio.
Do Derby festival events need a Metro application?
Events on Metro property or using two or more city services go through the Metro Special Events Handbook, and the restroom plan goes in the file. The Office of Special Events confirms what applies.
What about the mud on race day?
Pads, boards and walkways are laid for wet ground from the start, and the pads are checked after each rain during the week.
Can units be placed near the racetrack?
Units are placed outside the gates and along the walk, off the vehicle lanes, once the venue agrees the spots and the truck route.
When should the plan be settled?
As early as the event dates are known, since the Metro process and the venue's own rules take time.
Is the crowd figure guaranteed?
No. It is a reported or estimated figure, and the plan states its source and the margin used.
Who on the day runs the restrooms?
A supervisor runs the visits and the stock checks, and the organiser and the venue's operations team are the contacts for routes and gates.
Sources
- Louisville Metro Government, Special Events Handbook (revised 2026)
- U.S. Census Bureau QuickFacts, Louisville/Jefferson County
This guide is general information for Jefferson County homeowners, not a substitute for an on-site inspection. Prices are estimates. See our disclaimer.