How does a linear project differ from a single site?
A linear project, such as a rail extension or a road, spreads crews along a corridor and moves them over time. Toilets must follow, so the plan includes several unit groups, a servicing route that visits each and a way to relocate units. A single-site count does not capture that.
Phase II runs from Berryessa through downtown to Santa Clara, and its work areas are strung along that route. A crew at one end cannot use a toilet at the other.
The contractor decides how many groups and where. The provider advises on access, servicing and moves.
What does the count look like?
The Cal/OSHA rule of one toilet for each 20 employees or fraction applies to each group of workers, so a project with several work areas counts each area. The general contractor confirms the requirement, and the provider helps work out how many units fit the headcount at each location.
Because the rule counts fractions, a small crew of six at an outlying area still needs a toilet there. Many small areas add up to a larger total than one big site of the same headcount.
Track headcount by area and shift, and update the provider as it changes.
What about the Diridon area and redevelopment?
Redevelopment plans near Diridon Station include offices and housing, but no construction status was confirmed for this page, so it does not describe any site as under way. When a site is active, the same principles apply: count the crew, place the units on firm ground and agree servicing.
Plans for a large mixed-use district near the station date from a 2018 memorandum of understanding and describe about 6.5 million square feet of offices and 3,000 to 5,000 homes. They are a reason to expect crew demand, not a schedule.
Contractors who are planning work should ask the provider about lead times for large orders.
How do access and traffic downtown affect servicing?
Downtown streets are busy with arena events, construction traffic and closures. Servicing trucks need curb access at times that do not collide with deliveries, so agree windows with the provider and tell it about road closures. Night servicing may suit some work areas better.
Tell the provider about hours, gate codes, flagging and where a truck can stop. A work area inside a fence may have good access but a narrow gate.
Some projects ask for servicing outside peak hours. That is a quote item.
How should a contractor handle several subcontractors on one project?
Name one party responsible for sanitation and give the provider a single contact. When each subcontractor assumes another has arranged units, areas end up with none or with duplicates. A project-level plan, kept up to date as crews come and go, is cheaper than a dozen separate orders.
Large projects bring many employers to the same corridor. Cal/OSHA's count follows employees at a work location, and a contractor who tallies only its own crew will undercount the area.
Send the provider an updated headcount by area whenever a new subcontractor mobilizes. A short written note is enough, and it gives the provider something to plan from.
What should be planned for night shifts and shutdown windows?
Some civil work runs at night or in short shutdown windows. Servicing must fit those hours, and units must be reachable when crews arrive. Tell the provider the shift pattern, any access passes needed and the contact on the night. A visit that arrives at the wrong hour helps nobody.
A work area in or beside a street may be fenced and lit only during shifts. A truck that arrives outside those hours finds a locked gate.
Ask the provider whether it can service at the hours you need and whether that changes the quote. Some will, some will not, and it is better to know before the contract is signed.
How are the project stages likely to change the toilet plan?
Civil projects move through mobilization, excavation, structure and finishing, and each stage changes where crews are and how many there are. The toilet plan should be reviewed at each stage change, with units added where crews arrive and removed where work is done.
The July 2026 report on BART Silicon Valley Phase II described structural walls complete, a third of the ramp built and three-quarters of the excavation done. Those are stages, and the people on site at each are different.
A review at every stage change is a small meeting with large effects. It keeps units where the crew is and stops the project paying for units in finished areas.
