Conditions at a Glance

8.0%of housing units built in 2010 or later (ACS 2020–2024)

32nights a year at or below 32°F (NOAA 1991–2020 normals)

4 inaverage yearly snowfall (NOAA 1991–2020 normals)

Climate figures: NOAA 1991–2020 normals from the Portland Intl Ap, OR station, about 10 miles away.

Conditions for Job Sites

Building in Existing Neighborhoods

About 8.0% of Gresham's housing units were built in 2010 or later (ACS 2020–2024), below the U.S. share of 11.4%, though above the median U.S. place in our data, so most homes predate 2010 and many projects are renovations or additions to existing buildings.

Homes From the 1970s and 1980s

The median year built for Gresham's housing is 1981 (ACS 2020–2024), newer than most U.S. places in our data. Housing from that era is now 35 to 55 years old; crews replacing roofs, windows or mechanical systems on it need a toilet on site like any other crew.

Apartments, Townhouses and Rentals

The most common housing type is detached houses, about 53% of units (lower than three in four U.S. places in our data), followed by buildings with five or more units at about 28% (ACS 2020–2024). Detached houses usually have a driveway or yard where a crew's unit can stand within reach of the service truck. Apartment and condo projects bring larger crews, and a property manager decides where units go. About 44% of occupied homes are rented (owner share lower than three in four U.S. places in our data), so check who controls the property before a unit goes on it.

DOE's Building America map puts Multnomah County in the Marine climate region (IECC 2021 zone 4C, PNNL county guide). This region has mild temperatures most of the year but long damp seasons, so wet ground is usually a bigger issue than heat or cold.

Freezing Nights

About 32 nights a year reach 32°F or below, fewer than three in four U.S. places in our data, mostly between late fall and early spring. Freezing nights are routine in winter; ask whether the provider changes its service approach for winter job sites. Snow is light, about 4 inches in an average year.

Lead-Safe Renovation

About 48% of housing units predate 1980 (ACS 2020–2024). Under OSHA’s lead standard (29 CFR 1926.62), workers exposed to lead need adequate hand-washing facilities, and EPA’s RRP Rule covers paint-disturbing work in homes built before 1978; add hand-wash stations to the order on those jobs.

How Many Toilets

OSHA 29 CFR 1926.51(c)(1) sets the minimum number of toilets on a construction site by headcount:

Number of employees	Minimum toilet facilities
20 or fewer	1 toilet
20 or more	1 toilet seat and 1 urinal per 40 workers
200 or more	1 toilet seat and 1 urinal per 50 workers

Worked examples, rounding up as the table is usually read: 15 workers need 1 toilet. 45 workers need 2 toilet seats and 2 urinals (45 ÷ 40 = 1.125, rounded up to 2). 210 workers need 5 seats and 5 urinals (210 ÷ 50 = 4.2, rounded up to 5).

With so much multifamily housing here, a 45-person crew on an apartment or condo project is a realistic case: 2 toilet seats and 2 urinals.

Servicing frequency is set with the provider when you book; tell us headcount and shift length. OSHA's job-site toilet table has the full table.

Placement and Access

Put units on firm, level ground the service truck can reach, close to where crews work, clear of crane swing, excavation and vehicle routes, and move them as the work moves.

Federal OSHA or State Plan

Oregon runs an OSHA-approved State Plan, Oregon Occupational Safety and Health (Oregon OSHA), Oregon Department of Consumer and Business Services, that covers most private-sector workers as well as state and local government workers (osha.gov State Plans, accessed 2026-10-13). State Plans must be at least as effective as federal OSHA, so check the State Plan's construction sanitation rule alongside 29 CFR 1926.51. osha.gov lists some coverage exclusions for this plan; the State Plan page shows which work they affect.

Who to Ask About Local Rules

Gresham is an incorporated city with its own municipal government. For a unit placed in the street, on a sidewalk or in another public right-of-way next to the job site, ask the Gresham city government before you book what applies.

What to Ask For

Crew size at the busiest point and shift length (OSHA sets the minimum by headcount)
Rental term and service frequency
A spot on site the service truck can reach
Whether units need to move as the work progresses
Winter servicing and freeze protection for holding tanks

Related Rentals

Construction Porta Potty Rental Nearby

Construction Porta Potty Rental in Gresham: Questions

How do I book job-site porta potties in Gresham?

Call (888) 417-6737, answered 24/7, with the site address, dates and headcount. We connect you with a provider that serves Gresham, and the provider confirms units, price, delivery, servicing and pickup. Tell us the units you want; the provider confirms what's available for your site.

How many toilets for a 45-person crew?

2 toilet seats and 2 urinals: 45 ÷ 40 is 1.125, rounded up to 2, which is the usual reading of OSHA's 1926.51 table. For comparison, 15 workers need 1 toilet and 210 workers need 5 seats and 5 urinals.

Does Oregon use federal OSHA or a State Plan?

Oregon runs an OSHA-approved State Plan, Oregon Occupational Safety and Health (Oregon OSHA), Oregon Department of Consumer and Business Services, that covers most private-sector workers as well as state and local government workers (osha.gov State Plans, accessed 2026-10-13). State Plans must be at least as effective as federal OSHA, so check the State Plan's construction sanitation rule alongside 29 CFR 1926.51. osha.gov lists some coverage exclusions for this plan; the State Plan page shows which work they affect.

Can job-site units stay out all winter in Gresham?

Yes, standard units have no running water to freeze, but with about 32 nights a year at or below 32°F, ask how the provider services them in winter and protects any hand-wash stations.

Construction Porta Potty Rental in Gresham, OR