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One road out
California’s State Minimum Fire Safe Regulations say roads and driveways shall provide emergency-vehicle access and civilian evacuation at the same time. Oregon fire-access guides require a second fire-apparatus road when one- and two-family dwellings on a single access exceed 30, with a sprinkler exception. Dead-end length is a different object. This is not a 50-state evacuation table. Confirm with the AHJ.
You are looking at a map where one paved lane serves forty lots and ends at a gate. Evacuation and the engine want that lane at the same time. That congestion is the object. A long private driveway with a hammerhead is not the same object.
No g3-passed exhibit matches this object. SIT-100 names the driveway on the hub. It is not a two-road diagram. DET-022 is still a brief.
Why it matters
A community with one way out is how civilians and apparatus meet head-on. Oregon writes that as a dwelling-count and a second fire-apparatus road. California writes it as concurrent access and egress in Title 14. Neither sentence is R327 covering. Neither is a sheriff’s evacuation order.
How it works
One access road is a single path the engine and the departing cars share. OFC 503.1.2 lets the official require another road when that path could be blocked. Appendix D then numbers when subdivisions must have two. A turnaround at the end of a dead-end is so the engine can leave without backing a mile. It is not a second public road. California’s dead-end table caps how long that single road may be, by parcel size.
How the documents split
| Object | Oregon guides opened here | California 14 CCR |
|---|---|---|
| Intent | Second apparatus road when one could be impaired (503.1.2) | Concurrent equipment access and civilian evacuation (1273.00) |
| One- and two-family | Two roads over 30 dwellings; sprinkler exception (D107) | Two 10-foot lanes on roads (1273.01) |
| Driveway | 20-foot unobstructed access road, with 12-foot surface exceptions on the hub page | One 10-foot lane, 14 ft horizontal, 13 ft 6 in vertical |
| Dead-end | Turnaround over 150 ft (Yamhill) or 300 ft (Portland) | Max length 800 to 5,280 ft by parcel size (1273.08) |
| Two-road spacing | At least half the diagonal of the area served | Not in the three sections opened |
| What it is not | A statewide “one road out” ban on every house | Oregon Fire Code |
The paths
1. Count dwellings on the single access, not acres. Portland and Yamhill. More than 30 one- or two-family units wants two approved apparatus roads unless every unit is sprinklered.
2. Ask whether 503.1.2 still adds a road. Congestion, terrain, climate, other impairment. That authority exists even under 30 units.
3. Do not sell a hammerhead as a second way out. Fire apparatus access owns turnaround length. This page owns two roads versus one.
4. California is Title 14, not OFC. Concurrent evacuation is 1273.00. Two lanes on a road is 1273.01. Dead-end caps are 1273.08. A Deschutes OFC drawing does not pick those numbers.
5. Two gates on one lane are one road. Separation is half the diagonal in the Oregon guides. Driveway gates.
6. FHSZ is not the access count. How to read a CAL FIRE FHSZ map is hazard class. SRA Fire Safe Regulations are this access book.
What people mix up
- A 30-unit Oregon trigger as one house on a long driveway.
- A turnaround as a second public road.
- California two-lane roads as Oregon driveway width.
- Two locked gates as two access roads.
- This page as an evacuation order.
- A 50-state table.
How to check
- Count dwelling units on the single access. Compare to 30 in Portland and Yamhill.
- Open OFC 503.1.2 in the guide they use. Ask if they are requiring a second road anyway.
- If the lot is California SRA / VHFHSZ, open 14 CCR 1273.00, 1273.01, and 1273.08. Do not use OFC D107 there.
- Measure whether two proposed roads are actually separated.
- Keep width and grade on the roads you already have.
- Confirm with the official and, in California, the local Fire Safe implementation.
Limits
This page does not design a subdivision. It does not reprint Appendix D figures. It does not map every Oregon cul-de-sac. FireApproved is not CAL FIRE and not the fire district. Dead-end length and two-road counts stay in the book that binds the lot.
Related records
Questions
Does Oregon require two ways out for every house?
No. Portland’s 2021 fire-code guide and Yamhill’s 2025 guide both reprint OFC D107. Developments of one- or two-family dwellings where the number of dwelling units exceeds 30 shall have two separate approved fire-apparatus access roads. If every dwelling on that single road has an approved sprinkler, a single access is allowed. The fire code official can also require more than one road under OFC 503.1.2 when one road could be impaired.
Is a long driveway a “one road out” community?
Not by itself. Yamhill and Lincoln require an approved turnaround on a dead-end fire-apparatus road over 150 feet. Portland uses 300 feet. That is turnaround, not a second public road. California Title 14 section 1273.08 caps dead-end road length by parcel size, from 800 feet to 5,280 feet. Different book.
Does California always want two lanes?
Title 14 section 1273.01 wants roads to provide two 10-foot traffic lanes for two-way flow to support emergency vehicles and civilian egress, unless another standard in that article or a local rule says otherwise. Driveways are one 10-foot lane with 14 feet unobstructed horizontal and 13 feet 6 inches vertical. Section 1273.00 is the intent sentence. Concurrent access and evacuation. Not Oregon Fire Code.
Will a second gate on the same driveway count?
Portland and Yamhill measure two access roads by separation. Where two roads are required, they shall be placed a distance apart equal to not less than one half the maximum overall diagonal of the area served, measured in a straight line. Two gates on one lane are not two roads. See driveway gates.