Overflow for Adelphi Mill events
A 2017 parks guide listed the mill's maximum at 150 people across two levels, so a large party or wedding on the grounds may want extra restrooms.
ADA-Accessible Trailers. Delivered Across Maryland, 24/7.
Call (888) 385-5513ADA stalls with a ramp are available for Adelphi Mill overflow events, park-permit gatherings and campus renovation phases, making ADA restroom trailer rental in Adelphi a common ask. Decide early whether the setting is park property, county-regulated private land or a federal site; estimated drive time to Adelphi is about 40 minutes. Book for a single weekend or commit to a long lease, and phones are answered continuously, emergency requests included.

The name Adelphi comes from a gristmill built in 1796 on the Northwest Branch of the Anacostia River, though the surrounding subdivisions only grew after World War II. It is an unincorporated community of Prince George's County, so county offices rather than a town hall decide permits. Two large institutions anchor it today: the University of Maryland Global Campus and the Army Research Laboratory's Adelphi Laboratory Center. A state marker near Powder Mill and Riggs Roads recalls labor organizer Mother Jones.
Our restroom trailers, mobile shower trailers and shower and restroom combination trailers are ADA-accessible, delivered to your site and available as short-term rentals or long-term leases.
| Trailer | Stalls | Water and power | Best for | From (1-6 days) |
|---|---|---|---|---|
| 13 ft shower-restroom combo | 3 private shower/restroom stalls | Hot and cold water; 120V/240V, 200 A | Small crews, estate events, tight sites | From $2,995 |
| 22 ft shower-restroom combo | 6 private stalls | Hot and cold water; 120V/240V, 200 A | Mid-size crews, festivals, campuses | From $4,995 |
| 30 ft shower-restroom combo | 8 private stalls | Hot and cold water; 120V/240V, 200 A | Base camps, plant outages, large events | From $3,995 |
| 20 ft shower container | 5 shower heads, water heater | 120V/240V, 200 A | Workforce and emergency shelters | From $3,995 |
| Combo + 1 ADA stall (3+1 and 8+1) | Standard stalls plus one ADA stall with ramp | As above | Public sites, schools, government, healthcare | Request a quote |
| 16-basin handwashing sink trailer | 16 basins | Water heater | Pairs with any unit for food and event sites | From $2,995 |
All prices are starting rates and may vary depending on delivery location, rental duration, site conditions and service needs. Request a quote for final pricing.
See restroom trailer rental prices in Maryland for 1-day to 3-month rates, or size a trailer with the stall planner.



A 2017 parks guide listed the mill's maximum at 150 people across two levels, so a large party or wedding on the grounds may want extra restrooms.
UMGC and the Army laboratory are sizable institutional sites where multi-phase construction or maintenance could need temporary crew facilities.
M-NCPPC's Park Permit Office handles rentals for the mill and many recreation buildings, so reunions and club events on park property are a realistic setting.
Adelphi is unincorporated, so Prince George's County governs it and DPIE is the main permitting office. Its Special Event Temporary Use and Occupancy permit is requested through the Momentum portal about 45 days before an event, and the county's checklist includes Fire Marshal approval. Adelphi Mill and other park property are different: rentals run through the M-NCPPC Park Permit Office. No published rule about restroom or shower trailers was found for either, so ask both offices before booking.
Decide early whether the setting is park property, county-regulated private land or a federal site, because each has a different office to ask.
Permit office: Prince George's County Department of Permitting, Inspections and Enforcement (DPIE), Special Event Permit
County office: Department of Permitting, Inspections and Enforcement (DPIE), https://www.princegeorgescountymd.gov/departments-offices/permitting-inspections-and-enforcement
County health: Prince George's County Health Department, Environmental Health / Food Safety: temporary food service facility permits and event-day inspections where food or drink is served. We did not find a county page setting a portable toilet count for events; confirm sanitation expectations with the Health Department or the county Special Events Coordinator.
Permit rules and event dates change, so confirm current requirements with the office before you order. Water and power hookups are confirmed in your quote. For federal and state basics (OSHA, ADA, wastewater) read the Maryland rules guide.
ADA-compliant restroom and shower trailers for Adelphi, including combination trailers with a dedicated ADA stall. See ADA trailers
Luxury restroom trailer rental for weddings and events near Adelphi, with private stalls for every guest. See wedding trailers
Monthly restroom and shower trailer rental for Adelphi job sites and facilities. See long-term rental
Adelphi is in Prince George's County, part of the Capital Region.
The mill and about 34 acres belong to the park agency, and rentals go through its Park Permit Office. No published rule on placing trailers there was found, so ask the Park Permit Office directly, and contact DPIE if tents or a larger public event are involved.
The Adelphi Laboratory Center is a federal facility, and UMGC is a state university system campus, so each sets its own access and facilities rules. No published guidance was found, and the facilities office of the specific site is the right first contact.
Yes. ADA-accessible restroom trailers, shower trailers and shower and restroom combination trailers go to Adelphi and the rest of Prince George's County. Send the address and dates and the quote confirms trailer, delivery and price.
Yes. Construction sites, renovations and seasonal operations use long-term rental and leasing. Monthly rates are on the rental prices page and the final price is set in your quote.
Tell us the Maryland address, how many people and how long. We reply with the trailer, the stall count and the price.
Prefer to talk? Call (888) 385-5513, open 24 hours a day.
Short-Term & Long-Term Rentals and Leasing.