CWUIC · California Wildland-Urban Interface Code
Gates, restricted roads and approved emergency-access controls
Homeowner summary: CWUIC requires gates and restricted roads to allow immediate fire department access and civilian evacuation — gates must meet width/clearance/setback rules and any security gate needs local approval and an approved emergency‑operation method; existing roads and buildings must have required address and marking per §402.3.
Last reviewed: July 6, 2026
What the code requires — 2-4 sentences
The California Wildland‑Urban Interface Code requires that gates and any restricted roads not impede emergency vehicle access and that security gates have an approved means of emergency operation and local approval. Key access, width and location rules are found in § 403 (Access) and requirements for existing roads, markings and address markers are in § 402.3.
Gates and restrictions are allowed only when they still permit fire apparatus and civilian evacuation — and every security gate must have an approved emergency operation method. (Plain English restatement of § 403.1.10(d) and § 403 overall.)
Requirements in detail
Scope and key definitions (first mentions are bold)
- § 403 governs roads and driveways in Wildland‑Urban Interface areas; requirements do not apply to roads used solely for agriculture, mining, or timber harvesting. § 403 requires roads and driveways to provide safe access for emergency wildfire equipment and civilian evacuation concurrently.
- § 402.3 requires existing buildings and roads to have address markers and markings (addresses, road and equipment markings) for locating and maintaining access.
- Defined term: Defensible Space is the area around a parcel maintained to support emergency vehicle access, water reserves and fuel modification — used in the access intent for § 403.
Decision‑relevant dimensions and values (quick reference)
| Element | Required value / threshold | Where it applies | Code Reference |
|---|---|---|---|
| Gate entrance minimum width | 14 ft unobstructed horizontal | Gate entrances to driveways/roads | § 403.1.10(a) |
| Gate setback from roadway | 30 ft minimum from the roadway; must open so a vehicle can stop without obstructing traffic | Gates providing access from a road to a driveway | § 403.1.10(b) |
| Gate vertical clearance | 13 ft 6 in unobstructed | Gate entrances / driveways | § 403.1.10(a) |
| Gate width for traffic lane(s) | Gate entrance shall be at least 2 ft wider than lane(s) it serves | All gate entrances | § 403.1.10(a) |
| Driveway traffic lane width | 10 ft minimum lane | Driveways (single‑lane) | § 403.1.2(c) |
| One‑way road lane width | 12 ft minimum lane | One‑way roads (where allowed) | § 403.1.2(b) |
| Roads — two lanes | Two 10‑ft lanes minimum (not including shoulders/striping) | Typical roads to support two‑way traffic | § 403.1.2(a) |
| One‑way road length limit | 2,640 ft maximum | One‑way roads (and must have turnouts at midpoint) | § 403.1.2(b)(2) |
| Turning radius to gated entrance (one‑way) | 40 ft | Where a one‑way road with single traffic lane serves a gated entrance | § 403.1.10(c) |
| Dead‑end road cumulative lengths (by parcel zoning) | <1 acre: 800 ft; 1–4.99 ac: 1,320 ft; 5–19.99 ac: 2,640 ft; ≥20 ac: 5,280 ft | Dead‑end roads (measured from beginning intersection to end) | § 403.1.9(a) |
| Existing roads & buildings marking | Addresses and markings required per the code | Existing buildings, roads, fire protection equipment | § 402.3 |
Notes:
- The lane, width and clearing numbers above come from § 403 subsections and apply unless the local jurisdiction adopts additional requirements.
- Security or “access‑control” devices are only permitted with approval and must include an approved emergency operation; the local authority decides approval and maintenance expectations. § 403.1.10(d).
Operational / approval requirements
- Security gates shall not be installed without approval; where they are installed they must have an approved means of emergency operation and be maintained operational at all times. § 403.1.10(d).
- Local authority (fire code official or AHJ) can require gates/barricades across private fire apparatus access roads and can require securing in an approved manner; authorities may also approve variations for special conditions (see text of § 403 and related notes).
Exceptions & special cases
- Roads used solely for agriculture, mining, or timberland management/harvesting are exempt from the standards in Section 403. (User note referencing 14 CCR §1270.03(d) within the CWUIC).
- Local authority approval: One‑way roads, gate installations and variations from the numeric standards may be allowed by the local jurisdiction (AHJ) when conditions justify it — the CWUIC repeatedly defers to local approval for some alternate methods.
- Existing roads and buildings must be brought into compliance with marking/address requirements per § 402.3 (addresses, road and equipment markings), but the standard is about marking rather than retrofitting structural road width changes.
Common mistakes
- Installing a security gate without AHJ approval or without an approved emergency operation device — this contravenes § 403.1.10(d).
- Placing a gate too close to the roadway (less than 30 ft) so vehicles cannot stop off the road while the gate operates — violates § 403.1.10(b).
- Using a gate width equal to the lane width instead of 2 ft wider than the lane(s) or the minimum 14 ft — reduces room for emergency apparatus and drivers; see § 403.1.10(a).
- Treating one‑way roads like two‑lane roads: one‑way roads have specific limits — 12‑ft lane, midpoint turnout, and 2,640‑ft maximum — from § 403.1.2(b).
- Forgetting address and road markings for existing buildings/roads (required by § 402.3), which delays response even when physical access is compliant.
Worked example — single gated driveway serving one home
Scenario: A homeowner installs a private security gate on a single‑lane driveway that connects to a public road.
- Driveway lane: the driveway is a single lane; per § 403.1.2(c) the driveway must provide a 10‑ft traffic lane and 13 ft 6 in vertical clearance.
- Gate width: because the driveway lane is 10 ft, the gate entrance must be at least 2 ft wider than the lane and at least 14 ft unobstructed — the larger of the two controls, so the homeowner must provide a 14 ft clear opening. This tracks § 403.1.10(a).
- Gate setback: the gate must be located ≥ 30 ft from the roadway and must open such that a vehicle can stop without blocking traffic on the public road (so provide a 30‑ft driveway apron between the public roadway edge and the gate). Follow § 403.1.10(b).
- Security gate approval & emergency operation: Because this is a security gate, the owner must obtain local authority approval and install an approved means of emergency operation (e.g., approved switch or key‑box access) and keep it operational per § 403.1.10(d).
- Address/marking: If the home and driveway are existing, ensure the property has an address marker and any required road/fire‑equipment markings per § 402.3 so first responders can locate the home quickly.
If the driveway were a one‑way private road serving multiple dwellings, check the one‑way lane 12‑ft minimum and maximum one‑way length 2,640 ft plus required midpoint turnout per § 403.1.2(b).
Related provisions (other CWUIC sections you should check)
- § 403.1.2 — Width and lane requirements for roads, one‑way roads and driveways.
- § 403.1.9 — Dead‑end road maximum cumulative lengths by parcel zoning.
- § 403.2.4 and § 403.2.5 — Addresses for buildings and address installation/visibility (supports § 402.3).
- § 403.1.1 — Definitions used in Section 403 (including Defensible Space).
- Appendix material and notes (useful guidance / figures for turnouts, turnarounds and gates) — see the CWUIC appendices that reference CCR Title 14 figures and examples.
Code references
Grounded in the retrieved California Wildland-Urban Interface Code — click a citation to read the verbatim passage:
CWUIC § 1273.09 High relevance — show source text
Note: Authority cited: Section 4290, Public Resources Code. Reference: Sections 4290 and 4291, Public Resources Code.
1273.09 Gate Entrances.
(a) Gate entrances shall be at least two (2) feet wider than the width of the traffic lane(s) serving that gate and a minimum width of fourteen (14) feet unobstructed horizontal clearance and unobstructed vertical clearance of thirteen feet, six inches (13' 6”). (b) All gates providing access from a road to a driveway shall be located at least thirty (30) feet from the roadway and shall open to allow a vehicle to stop without obstructing traffic on that Road. (c) Where a one-way road with a single traffic lane provides access to a gated entrance, a forty (40) foot turning radius shall be used.
(d) Security gates shall not be installed without approval. Where security gates are installed, they shall have an approved means of emergency operation. Approval shall be by the local authority having jurisdiction. The security gates and the emergency operation shall be maintained operational at all times.
Note: Authority cited: Section 4290, Public Resources Code. Reference: Sections 4290 and 4291, Public Resources Code.
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APPENDIX H—REFERENCED CALIFORNIA DOCUMENTS
1273.10 Road and driveway structures. (a) Appropriate signing, including but not limited to weight or vertical clearance limitations, one-way road or single traffic lane conditions, shall reflect the capability of each bridge. (b) Where a bridge or an elevated surface is part of a fire apparatus access road, the bridge shall be constructed and maintained in accordance with the American Association of State and Highway Transportation Officials Standard Specifications for Highway Bridges, 17th Edition, published 2002 (known as AASHTO HB-17), hereby incorporated by reference. Bridges and elevated surfaces shall be designed for a live load sufficient to carry the imposed loads of fire apparatus. Vehicle load limits shall be posted at both entrances to bridges when required by the local authority having jurisdiction. (c) Where elevated surfaces designed for emergency vehicle use are adjacent to surfaces which are not designed for such use, barriers, or signs, or both, as approved by the local authority having jurisdiction, shall be installed, and maintained. (d) A bridge with only one traffic lane may be authorized by the local jurisdiction; however, it shall provide for unobstructed visibil- ity from one end to the other and turnouts at both ends.
Note: Authority cited: Section 4290, Public Resources Code. Reference: Sections 4290 and 4291, Public Resources Code.
Article 3 Signing and Building Numbering
1274.00. Intent. To facilitate locating a fire and to avoid delays in response, all newly constructed or approved Roads and Buildings shall be designated by names or numbers posted on signs clearly visible and legible from the Road. This section shall not restrict the size of letters or numbers appearing on road signs for other purposes.
CWUIC § 403.1.8 High relevance — show source text
403.1.8 Road and Driveway Structures. (a) Appropriate signing, including but not limited to weight or vertical clearance limitations, one-way road or single traffic lane conditions, shall reflect the capability of each bridge. (b) Where a bridge or an elevated surface is part of a Fire Apparatus access road, the bridge shall be constructed and maintained in accordance with the American Association of State and Highway Transportation Officials Standard Specifications for High- way Bridges, 17 [th] Edition, published 2002 (known as AASHTO HB-17), hereby incorporated by reference. Bridges and elevated surfaces shall be designed for a live load sufficient to carry the imposed loads of fire apparatus. Vehicle load limits shall be posted at both entrances to bridges when required by the local authority having jurisdiction. (c) Where elevated surfaces designed for emergency vehicle use are adjacent to surfaces which are not designed for such use, barriers or signs, or both, as approved by the local authority having jurisdiction, shall be installed and maintained.
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WILDLAND-URBAN INTERFACE AREA REQUIREMENTS
(d) A bridge with only one traffic lane may be authorized by the Local Jurisdiction; however, it shall provide for unobstructed visi- bility from one end to the other and turnouts at both ends.
[CCR, Title 14 §1273.07]
403.1.9 Dead-end Roads.
(a) The maximum length of a Dead-end Road, including all Dead-end Roads accessed from that Dead-end Road, shall not exceed the following cumulative lengths, regardless of the number of parcels served:
Parcels zoned for less than one acre – 800 feet (262 m)
Parcels zoned for 1 acre to 4.99 acres – 1,320 feet (433 m)
Parcels zoned for 5 acres to 19.99 acres – 2,640 feet (866 m)
Parcels zoned for 20 acres or larger – 5,280 feet (1732 m) All lengths shall be measured from the edge of the road surface at the intersection that begins the road to the end of the road surface at its farthest point. Where a Dead-end Road crosses areas of differing zoned parcel sizes requiring different length limits, the shortest allowable length shall apply. (b) See Section 403.1.5 for Dead-end Road turnaround requirements.
[CCR, Title 14 §1273.08]
403.1.10 Gate entrances.
(a) Gate entrances shall be at least two (2) feet wider than the width of the traffic lane(s) serving that gate and a minimum width of fourteen (14) feet unobstructed horizontal clearance and unobstructed vertical clearance of thirteen feet, six inches (13' 6”). (b) All gates providing access from a road to a driveway shall be located at least thirty (30) feet from the roadway and shall open to allow a vehicle to stop without obstructing traffic on that Road. (c) Where a one-way road with a single traffic lane provides access to a gated entrance, a forty-foot turning radius shall be used. (d) Security gates shall not be installed without approval. Where security gates are installed, they shall have an approved means _of emergency operation. Approval shall be by the local authority having jurisdiction.
CWUIC § 4.99 High relevance — show source text
Parcels zoned for less than one acre – 800 feet (262 m)
Parcels zoned for 1 acre to 4.99 acres – 1,320 feet (433 m)
Parcels zoned for 5 acres to 19.99 acres – 2,640 feet (866 m)
Parcels zoned for 20 acres or larger – 5,280 feet (1732 m) All lengths shall be measured from the edge of the road surface at the intersection that begins the road to the end of the road surface at its farthest point. Where a Dead-end Road crosses areas of differing zoned parcel sizes requiring different length limits, the shortest allowable length shall apply. (b) See Section 403.1.5 for Dead-end Road turnaround requirements.
[CCR, Title 14 §1273.08]
403.1.10 Gate entrances.
(a) Gate entrances shall be at least two (2) feet wider than the width of the traffic lane(s) serving that gate and a minimum width of fourteen (14) feet unobstructed horizontal clearance and unobstructed vertical clearance of thirteen feet, six inches (13' 6”). (b) All gates providing access from a road to a driveway shall be located at least thirty (30) feet from the roadway and shall open to allow a vehicle to stop without obstructing traffic on that Road. (c) Where a one-way road with a single traffic lane provides access to a gated entrance, a forty-foot turning radius shall be used. (d) Security gates shall not be installed without approval. Where security gates are installed, they shall have an approved means of emergency operation. Approval shall be by the local authority having jurisdiction. The security gates and the emergency operation shall be maintained operational at all times.
[CCR, Title 14 §1273.09]
403.2 Signing and building numbering.
403.2.1 Intent. To facilitate locating a fire and to avoid delays in response, all newly constructed or approved Roads and Buildings shall be designated by names or numbers posted on signs clearly visible and legible from the Road. This section shall not restrict the size of letters or numbers appearing on road signs for other purposes. [CCR, Title 14 §1274.00]
403.2.2 Road signs. (a) Newly constructed or approved Roads must be identified by a name or number through a consistent system that provides for sequenced or patterned numbering and/or nonduplicative naming within each Local Jurisdiction. This section does not require any entity to rename or renumber existing roads, nor shall a Road providing access only to a single commercial or industrial Occupancy require naming or numbering. (b) The size of letters, numbers and symbols for Road signs shall be a minimum four-inch letter height, half-inch stroke, reflector- ized, contrasting with the background color of the sign.
[CCR, Title 14 §1274.01]
_**403.2.3 Road sign installation, location, and visibility.
CWUIC § 1273.09 High relevance — show source text
Where security gates are installed, they shall have an approved means_ of emergency operation. Approval shall be by the local authority having jurisdiction. The security gates and the emergency operation shall be maintained operational at all times.
[CCR, Title 14 §1273.09]
403.2 Signing and building numbering.
403.2.1 Intent. To facilitate locating a fire and to avoid delays in response, all newly constructed or approved Roads and Buildings shall be designated by names or numbers posted on signs clearly visible and legible from the Road. This section shall not restrict the size of letters or numbers appearing on road signs for other purposes. [CCR, Title 14 §1274.00]
403.2.2 Road signs. (a) Newly constructed or approved Roads must be identified by a name or number through a consistent system that provides for sequenced or patterned numbering and/or nonduplicative naming within each Local Jurisdiction. This section does not require any entity to rename or renumber existing roads, nor shall a Road providing access only to a single commercial or industrial Occupancy require naming or numbering. (b) The size of letters, numbers and symbols for Road signs shall be a minimum four-inch letter height, half-inch stroke, reflector- ized, contrasting with the background color of the sign.
[CCR, Title 14 §1274.01]
403.2.3 Road sign installation, location, and visibility. (a) Road signs shall be visible and legible from both directions of vehicle travel for a distance of at least one hundred (100) feet. (b) Signs required by this article identifying intersecting Roads shall be placed at the intersection of those Roads. (c) A sign identifying traffic access or flow limitations, including but not limited to weight or vertical clearance limitations, dead- end roads, one-way roads, or single lane conditions, shall be placed: (1) at the intersection preceding the traffic access limitation, and (2) not more than one hundred (100) feet before such traffic access limitation. (d) Road signs required by this article shall be posted at the beginning of construction and shall be maintained thereafter.
[CCR, Title 14 §1274.02]
403.2.4 Addresses for Buildings. (a) All Buildings shall be issued an address by the Local Jurisdiction which conforms to that jurisdiction's overall address system. Utility and miscellaneous Group U Buildings are not required to have a separate address; however, each Residential Unit within a Building shall be separately identified. (b) The size of letters, numbers and symbols for addresses shall conform to the standards in the California Fire Code, California Code of Regulations Title 24, Part 9. (c) Addresses for residential Buildings shall be reflectorized.
[CCR, Title 14 §1274.03]
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403.2.5 Address installation, location and visibility. (a) All buildings shall have a permanently posted address which shall be plainly legible and visible from the Road fronting the property. (b) Where access is by means of a private Road and the address identification cannot be viewed from the public way, an unob- _structed sign or other means shall be used so that the address is visible from the public way.
CWUIC § 402.1.1 High relevance — show source text
402.1.1 Access. New subdivisions, as determined by this jurisdiction, shall be provided with fire apparatus access roads in accordance with the California Fire Code; the California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Article 2; and access requirements in accordance with Section 403.
402.1.2 Water supply. New subdivisions as determined by this jurisdiction shall be provided with water supply in accordance with Section 507 of the California Fire Code; California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Article 4; and Section 404.
402.1.2.1 Parcel map approval. Water supply requirements shall apply in the tentative and parcel map process when new parcels are approved by the local jurisdiction.
402.2 Individual structures. Individual structures shall comply with Sections 402.2.1 and 402.2.2.
402.2.1 Access. Individual structures hereafter constructed or relocated into or within wildland-urban interface areas shall be provided with fire apparatus access in accordance with the California Fire Code; the California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Subsection 1273; and Section 403 .
402.2.2 Water supply. Individual structures hereafter constructed or relocated into or within wildland-urban interface areas shall be provided with a conforming water supply in accordance with the California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Article 4; California Fire Code Section 507; and Section 404.
402.3 Existing conditions. Existing buildings shall be provided with address markers in accordance with Sections 403.2.4 and 403.2.5 . Existing roads and fire protection equipment shall be provided with markings in accordance with Sections 403.4 and 404.8, respectively.
SECTION 403—ACCESS
USER NOTE: The standards in Section 403 applicable to roads shall not apply to roads used solely for agriculture; mining; or the management of timberland or harvesting of forest products. [CCR, Title 14 §1270.03(d)]
403.1 General. Roads and driveways, whether public or private, unless exempted under 14 CCR § 1270.03(d), shall provide for safe access for emergency wildfire equipment and civilian evacuation concurrently, and shall provide unobstructed traffic circulation during a wildfire emergency consistent 403.1.1 to 403.1.9. [CCR, Title 14 §1273.00]
403.1.1 Section 403 definitions. When used in Section 403, the term listed below shall be defined as follows:
DEFENSIBLE SPACE. The area within the perimeter of a parcel, development, neighborhood or community where basic wildland fire protection practices and measures are implemented to defend against encroaching wildfire or to escape structure fires. The perimeter as used in this regulation [CCR Title 14] is the area encompassing the parcel or parcels proposed for construction and/or development, excluding the physical structure itself. The area is characterized by the establishment and maintenance of emer- gency vehicle access, emergency water reserves, road names and identification, and fuel modification measures. [CCR Title 14 §1270.01(f)]
CWUIC § 402.3 High relevance — show source text
402.3 Existing conditions. Existing buildings shall be provided with address markers in accordance with Sections 403.2.4 and 403.2.5 . Existing roads and fire protection equipment shall be provided with markings in accordance with Sections 403.4 and 404.8, respectively.
SECTION 403—ACCESS
USER NOTE: The standards in Section 403 applicable to roads shall not apply to roads used solely for agriculture; mining; or the management of timberland or harvesting of forest products. [CCR, Title 14 §1270.03(d)]
403.1 General. Roads and driveways, whether public or private, unless exempted under 14 CCR § 1270.03(d), shall provide for safe access for emergency wildfire equipment and civilian evacuation concurrently, and shall provide unobstructed traffic circulation during a wildfire emergency consistent 403.1.1 to 403.1.9. [CCR, Title 14 §1273.00]
403.1.1 Section 403 definitions. When used in Section 403, the term listed below shall be defined as follows:
DEFENSIBLE SPACE. The area within the perimeter of a parcel, development, neighborhood or community where basic wildland fire protection practices and measures are implemented to defend against encroaching wildfire or to escape structure fires. The perimeter as used in this regulation [CCR Title 14] is the area encompassing the parcel or parcels proposed for construction and/or development, excluding the physical structure itself. The area is characterized by the establishment and maintenance of emer- gency vehicle access, emergency water reserves, road names and identification, and fuel modification measures. [CCR Title 14 §1270.01(f)]
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403.1.2 Width.
(a) All Roads shall be constructed to provide a minimum of two ten-foot traffic lanes, not including shoulder and striping. These traffic lanes shall provide for two-way traffic flow to support emergency vehicle and civilian egress, unless other standards are provided in this article or additional requirements are mandated by local jurisdictions or local subdivision requirements. Verti- cal clearances shall conform to the requirements in California Vehicle Code Section 35250. (b) All one-way roads shall be constructed to provide a minimum of one twelve-foot traffic lane, not including Shoulders. The Local Jurisdiction may approve One-way Roads. (1) All one-way roads shall, at both ends, connect to a road with two traffic lanes providing for travel in different directions, and shall provide access to an area currently zoned for not more than ten (10) Residential Units. (2) In no case shall a One-way Road exceed 2,640 feet in length. A turnout shall be placed and constructed at approximately the midpoint of each One-way Road. (c) All Driveways shall be constructed to provide a minimum of one (1) ten-foot traffic lane, fourteen (14) feet unobstructed hori- zontal clearance, and unobstructed vertical clearance of thirteen feet, six inches (13' 6”).
[CCR, Title 14 §1273.01]
403.1.3 Road surfaces.
CWUIC § 6.1 High relevance — show source text
D103.5 Fire apparatus access road gates. Gates securing the fire apparatus access roads shall comply with all of the following criteria:
- Where a single gate is provided, the gate width shall be not less than 20 feet (6096 mm). Where a fire apparatus road consists of a divided roadway, the gate width shall be not less than 12 feet (3658 mm).
- Gates shall be of the horizontal swing, horizontal slide, vertical lift or vertical pivot type.
- Construction of gates shall be of materials that allow manual operation by one person.
- Gate components shall be maintained in an operative condition at all times and replaced or repaired when defective.
- Electric gates shall be equipped with a means of opening the gate by fire department personnel for emergency access. Emergency opening devices shall be approved by the fire code official.
- Methods of locking shall be submitted for approval by the fire code official.
- Electric gate operators, where provided, shall be listed in accordance with UL 325.
- Gates intended for automatic operation shall be designed, constructed and installed to comply with the requirements of ASTM F2200.
D103.6 Signs. Where required by the fire code official, fire apparatus access roads shall be marked with permanent “NO PARKING— FIRE LANE” signs complying with Figure D103.6. Signs shall have a minimum dimension of 12 inches (305 mm) wide by 18 inches (457 mm) high and have red letters on a white reflective background. Signs shall be posted on one or both sides of the fire apparatus road as required by Section D103.6.1 or D103.6.2.
FIGURE D103.6—FIRE LANE SIGNS
SIGN TYPE "A" SIGN TYPE "C" SIGN TYPE "D"
18 ″
12 ″ 12 ″ 12 ″
D103.6.1 Roads 20 to 26 feet in width. Fire lane signs as specified in Section D103.6 shall be posted on both sides of fire apparatus access roads that are 20 to 26 feet wide (6096 to 7925 mm).
D103.6.2 Roads more than 26 feet in width. Fire lane signs as specified in Section D103.6 shall be posted on one side of fire apparatus access roads more than 26 feet wide (7925 mm) and less than 32 feet wide (9754 mm).
SECTION D104—COMMERCIAL AND INDUSTRIAL DEVELOPMENTS
D104.1 Buildings exceeding three stories or 30 feet in height. Buildings or facilities exceeding 30 feet (9144 mm) or three stories in height shall have not fewer than two means of fire apparatus access for each structure.
D104.2 Buildings exceeding 62,000 square feet in area. Buildings or facilities having a gross building area of more than 62,000 square feet (5760 m [2] ) shall be provided with two separate and approved fire apparatus access roads. Exception: Projects having a gross building area of up to 124,000 square feet (11 520 m [2] ) that have a single approved fire apparatus access road where all buildings are equipped throughout with approved automatic sprinkler systems.
D104.3 Remoteness. Where two fire apparatus access roads are required, they shall be placed a distance apart equal to not less than one half of the length of the maximum overall diagonal dimension of the lot or area to be served, measured in a straight line between
accesses.
SECTION D105—AERIAL FIRE APPARATUS ACCESS ROADS
CWUIC § 1273.05 High relevance — show source text
APPENDIX H—REFERENCED CALIFORNIA DOCUMENTS
(d) A turnaround shall be provided on driveways over 300 feet in length and shall be within fifty (50) feet of the building. (e) Each dead-end road shall have a turnaround constructed at its terminus. Where parcels are zoned five (5) acres or larger, turn- arounds shall be provided at a maximum of 1,320-foot intervals. (f) Figure A. Turnarounds on roads with two ten-foot traffic lanes. (g) Figure B. Turnarounds on driveways with one ten-foot traffic lane.
Note: Authority cited: Section 4290, Public Resources Code. Reference: Sections 4290 and 4291, Public Resources Code.
FIGURE FOR CCR 1273.05—TURNAROUND EXAMPLES
1273.06 Turnouts. Turnouts shall be a minimum of twelve (12) feet wide and thirty (30) feet long with a minimum twenty-five (25) foot taper on each end.
Note: Authority cited: Section 4290, Public Resources Code. Reference: Sections 4290 and 4291, Public Resources Code.
1273.08 Dead-end roads.
(a) The maximum length of a dead-end road, including all Dead-end Roads accessed from that dead-end road, shall not exceed the following cumulative lengths, regardless of the number of parcels served:
Parcels zoned for less than one acre – 800 feet
Parcels zoned for 1 acre to 4.99 acres – 1,320 feet
Parcels zoned for 5 acres to 19.99 acres – 2,640 feet
Parcels zoned for 20 acres or larger – 5,280 feet All lengths shall be measured from the edge of the road surface at the intersection that begins the road to the end of the road surface at its farthest point. Where a dead-end road crosses areas of differing zoned parcel sizes requiring different length limits, the shortest allowable length shall apply. (b) See Section 1273.05 for dead-end road turnaround requirements.
Note: Authority cited: Section 4290, Public Resources Code. Reference: Sections 4290 and 4291, Public Resources Code.
1273.09 Gate Entrances.
(a) Gate entrances shall be at least two (2) feet wider than the width of the traffic lane(s) serving that gate and a minimum width of fourteen (14) feet unobstructed horizontal clearance and unobstructed vertical clearance of thirteen feet, six inches (13' 6”). (b) All gates providing access from a road to a driveway shall be located at least thirty (30) feet from the roadway and shall open to allow a vehicle to stop without obstructing traffic on that Road. (c) Where a one-way road with a single traffic lane provides access to a gated entrance, a forty (40) foot turning radius shall be used.
(d) Security gates shall not be installed without approval. Where security gates are installed, they shall have an approved means of emergency operation. Approval shall be by the local authority having jurisdiction. The security gates and the emergency operation shall be maintained operational at all times.
Note: Authority cited: Section 4290, Public Resources Code. Reference: Sections 4290 and 4291, Public Resources Code.
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE APPENDIX H-13
CWUIC § 304.8 Medium relevance — show source text
SECTION D102—REQUIRED ACCESS
D102.1 Access and loading. Facilities, buildings or portions of buildings hereafter constructed shall be accessible to fire department apparatus by way of an approved fire apparatus access road with an asphalt, concrete or other approved driving surface capable of supporting the imposed load of fire apparatus weighing up to 75,000 pounds (34 050 kg).
SECTION D103—MINIMUM SPECIFICATIONS
D103.1 Access road width with a hydrant. Where a fire hydrant is located on a fire apparatus access road, the minimum road width shall be 26 feet (7925 mm), exclusive of shoulders (see Figure D103.1).
FIGURE D103.1—DEAD-END FIRE APPARATUS ACCESS ROAD TURNAROUND
60-FOOT “Y”
MINIMUM CLEARANCE AROUND A FIRE HYDRANT
For SI: 1 foot = 304.8 mm.
D103.2 Grade. Fire apparatus access roads shall not exceed 10 percent in grade.
Exception: Grades steeper than 10 percent as approved by the fire code official.
D103.3 Turning radius. The minimum turning radius shall be determined by the fire code official.
D103.4 Dead ends. Dead-end fire apparatus access roads in excess of 150 feet (45 720 mm) shall be provided with width and turnaround provisions in accordance with Table D103.4.
2025 CALIFORNIA FIRE CODE APPENDIX D-3
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX D—FIRE APPARATUS ACCESS ROADS
TABLE D103.4—REQUIREMENTS FOR DEAD-END FIRE APPARATUS ACCESS ROADS Col2 Col3 LENGTH
(feet)WIDTH
(feet)TURNAROUNDS REQUIRED 0–150 20 None required 151–500 20 120-foot Hammerhead, 60-foot “Y” or 96-foot diameter cul-de-sac in accordance with Figure D103.1 501–750 26 120-foot Hammerhead, 60-foot “Y” or 96-foot diameter cul-de-sac in accordance with Figure D103.1 Over 750 Special approval required Special approval required For SI: 1 foot = 304.8 mm. For SI: 1 foot = 304.8 mm. For SI: 1 foot = 304.8 mm. D103.5 Fire apparatus access road gates. Gates securing the fire apparatus access roads shall comply with all of the following criteria:
- Where a single gate is provided, the gate width shall be not less than 20 feet (6096 mm). Where a fire apparatus road consists of a divided roadway, the gate width shall be not less than 12 feet (3658 mm).
- Gates shall be of the horizontal swing, horizontal slide, vertical lift or vertical pivot type.
- Construction of gates shall be of materials that allow manual operation by one person.
- Gate components shall be maintained in an operative condition at all times and replaced or repaired when defective.
- Electric gates shall be equipped with a means of opening the gate by fire department personnel for emergency access. Emergency opening devices shall be approved by the fire code official.
- Methods of locking shall be submitted for approval by the fire code official.
- Electric gate operators, where provided, shall be listed in accordance with UL 325.
CWUIC § 403.2 Medium relevance — show source text
APPENDIX I-4 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
Access Applicability 402 Driveways 403.2 Fire apparatus access roads 403.3 Grade 403.7
Individual structures 402.2 Marking of roads 402.3, 403.4 Restricted 403.1
Subdivisions 402.1 Accessory Buildings and Miscellaneous Structures
Defined 202
Detached 504.11 Exempt from permit 105.3 Additions or Alterations 101.5
Address Markers 402.3 Agriculture 202 Alternative Materials or Methods 104.2.2
Appeals 112 Appendices 101.2.1 Applicable Building 202 Applicability 102 Approved 202 Approved Agency 104.2.2.6.1, 202 Authority of Code Official 104
Building 202 Building Official 202
Certificate of Completion 111 Certificate of occupancy 111.2 Revocation 111.4
Temporary occupancy 111.3
Code Official 202 Code Official, Authority 104 Community Wildland-Urban Interface (WUI) Fire Hazard Evaluation Framework Appendix C Compliance Alternatives 105 Construction Documents 106
Amended 106.10
Examination of 106.9 Information on plans and specifications 106.2 Phased 106.12
Previous approval 106.11 Retention of 106.8 Site plan 106.3 Vegetation management plans 106.4 Control of Storage Appendix A, A105 Critical Fire Weather 202
Dead-end Road 202 Defensible Space 403, 601.3 Vegetation Plan 603 Definitions 202 Designation of Wildland-Urban Interface Area 302.1
Director 202 Driveway 202 Dumping Appendix A, A106 Dwelling 202
Exterior Covering 202
INDEX
Fees 109 Findings of Fact Appendix E Fire Chief 202 Fire Danger Rating System Appendix D Fire Flow Calculation Area Application 404.5 Defined 202 Fire Hazard Severity Zones 1.1.2, 202, 302.1, 302.2, Appendix D, Appendix H Fire Protection Plans 602
Fire Weather 202
Fire-Resistance-Rated Construction 501.3 Fire-Resistive Vegetation Appendix F Fire-Retardant-Treated Lumber or
Wood 503.2, 504.5, 504.7, 504.11 Flame Spread Index 202 Flashing 504.2.1, 504.5.1 Fuel Break 202, 609 Fuel Models Appendix D Fuel Modification 202
Fuel Modification Distance 603.2
Fuel Mosaic 202 Fuel-Loading 202
General Requirements Appendix A Green Belt 202
Greenways 202
CWUIC § 503.6 Medium relevance — show source text
FIRE SERVICE FEATURES
enforcement and fire-protection agencies. There shall be no less than one such access gate and there shall be as many such gates as needed to assure access to all major buildings and ground areas. If such gates are to be equipped with locks, the locking devices shall be designed to permit ready entrance by the use of the chain or bolt-cutting devices with which the local law enforcement and fire-protection agencies may be equipped.
503.6 Security gates. The installation of security gates across a fire apparatus access road shall be approved by the fire code official. Where security gates are installed, they shall have an approved means of emergency operation. The security gates and the emergency operation shall be maintained operational at all times. Electric gate operators, where provided, shall be listed in accordance with UL 325. Gates intended for automatic operation shall be designed, constructed and installed to comply with the requirements of ASTM F2200.
SECTION 504—ACCESS TO BUILDING OPENINGS AND ROOFS
504.1 Required access. Exterior doors and openings required by this code or the California Building Code shall be maintained with ready access for emergency access by the fire department. An approved access walkway leading from fire apparatus access roads to exterior openings shall be provided where required by the fire code official.
[California Code of Regulations, Title 19, Division 1, §3.05(b)] Fire Department Access and Egress. (Roofs)
(b) Roofs. No person shall install or maintain any security barrier such as barbed wire fencing, razor wire fencing, chain link fencing or any other fencing material, cable, aerial, antenna or other obstruction on the roof of any commercial establishment in such a manner as to obstruct or render egress or access hazardous in the event of fire or other emergency.
Exception: Guy wire, rods and aerial antenna masts may be attached to a roof structure having a slope of less than 30 degrees provided there is full clearance of seven feet or more between the roof and said obstruction. Guy wire or rods required to support aerial or antenna masts may be attached to a roof structure a lateral distance from the mast not in excess of one-sixth the height of the mast.
504.2 Maintenance of exterior doors and openings. Exterior doors and their function shall not be eliminated without prior approval. Exterior doors that have been rendered nonfunctional and that retain a functional door exterior appearance shall have a sign affixed to the exterior side of the door with the words “THIS DOOR BLOCKED.” The sign shall consist of letters having a principal stroke of not less than [3] / 4 inch (19.1 mm) wide and not less than 6 inches (152 mm) high on a contrasting background. Required fire department access doors shall not be obstructed or eliminated. Exit and exit access doors shall comply with Chapter 10. Access doors for high-piled combustible storage shall comply with Section 3206.7.
504.3 Stairway access to roof. New buildings four or more stories above grade plane, except those with a roof slope greater than 4 units vertical in 12 units horizontal (33.3-percent slope), shall be provided with a stairway to the roof. Stairway access to the roof shall be in accordance with Section 1011.12. Such stairway shall be marked at street and floor levels with a sign indicating that the stairway continues to the roof. Where the roof is a vegetative roof, includes a landscaped roof area, or is used or for other purposes, stairways shall be provided as required for such occupancy classification.
CWUIC § 7.62 Medium relevance — show source text
- For occupancies in Groups R-2 and R-3, within the interior conditioned space of individual dwelling units, where the open-sided walking surface is located not more than 25 feet (7.62 meters) measured vertically to the floor or walking surface below, required guards shall not be less than 36 inches (914 mm) in height measured vertically above the adjacent walking surface. 3. For occupancies in Group R-3, and within individual dwelling units in occupancies in Group R-2, where the top of the guard serves as a handrail on the open sides of stairs, the top of the guard shall be not less than 34 inches (864 mm) and not more than 38 inches (965 mm) measured vertically from a line connecting the nosings. 4. The guard height in assembly seating areas shall comply with Section 1030.17 as applicable. 5. Along alternating tread devices and ship’s ladders, guards where the top rail serves as a handrail shall have height not less than 30 inches (762 mm) and not more than 34 inches (864 mm), measured vertically from a line connecting the leading edge of the treads. 6. In Group F occupancies where exit access stairways serve fewer than three stories and such stairways are not open to the public, and where the top of the guard also serves as a handrail, the top of the guard shall be not less than 34 inches (864 mm) and not more than 38 inches (965 mm) measured vertically from a line connecting the nosings.
[BE] 1015.4 Opening limitations. Required guards shall not have openings that allow passage of a sphere 4 inches (102 mm) in diameter from the walking surface to the required guard height.
Exceptions:
- From a height of 36 inches (914 mm) to 42 inches (1067 mm), guards shall not have openings that allow passage of a sphere 4 [3] / 8 inches (111 mm) in diameter.
- The triangular openings at the open sides of a stair, formed by the riser, tread and bottom rail shall not allow passage of a sphere 6 inches (152 mm) in diameter.
- At elevated walking surfaces for access to and use of electrical, mechanical or plumbing systems or equipment, guards shall not have openings that allow passage of a sphere 21 inches (533 mm) in diameter.
- In areas that are not open to the public within occupancies in Group I-3, F, H or S, and for alternating tread devices and ship’s ladders, guards shall not have openings that allow passage of a sphere 21 inches (533 mm) in diameter.
- In assembly seating areas, guards required at the end of aisles in accordance with Section 1030.17.4 shall not have openings that allow passage of a sphere 4 inches (102 mm) in diameter up to a height of 26 inches (660 mm). From a height of 26 inches (660 mm) to 42 inches (1067 mm) above the adjacent walking surfaces, guards shall not have openings that allow passage of a sphere 8 inches (203 mm) in diameter.
- Within individual dwelling units and sleeping units in Group R-2 and R-3 occupancies, guards on the open sides of stairs shall not have openings that allow passage of a sphere 4 [3] / 8 (111 mm) inches in diameter. 7. [SFM] In lifeguard towers not open to the public, guards shall not have openings which allow passage of a sphere 21 inches (533 mm) in diameter.
Frequently asked questions
Can I install a security gate on my driveway without telling the fire department?
No. Security gates require local authority approval and must have an approved means of emergency operation and be maintained operational at all times under § 403.1.10(d).
How wide must a gate be for a single‑lane driveway?
The gate must be at least 2 ft wider than the lane it serves and at least 14 ft unobstructed horizontal clearance (so a single 10‑ft lane requires a 14‑ft clear gate opening) per § 403.1.10(a).
What if my private road is one‑way?
One‑way roads must provide a 12‑ft lane, connect at both ends to two‑lane roads, have a turnout at the midpoint, and may not exceed 2,640 ft in length unless approved by the local jurisdiction — see § 403.1.2(b).
Are existing roads required to be re‑built to meet these widths?
§ 402.3 requires existing buildings and roads to have address markers and markings; the CWUIC focuses existing‑condition requirements on marking and identification, while physical road upgrades are governed case‑by‑case and often by the AHJ (see § 402.3 and § 403).
What is the single most important thing to check before installing a gate?
Confirm AHJ approval and provision of an approved emergency operation (and that gate placement leaves ≥ 30 ft to stop off the public road) — this addresses the most common access failures in § 403.1.10.
More in California Wildland-Urban Interface Code
- Administration and Definitions
- Board of Appeals, Administration & Enforcement (permits, code official duties, appeals process)
- Wildland‑Urban Interface Area Designation & Mapping
- Fire Service Access & Water Supply (fire apparatus roads, driveways, hydrants, draft sites, standby power)
- Wildland‑Urban Interface Area Requirements (access, water, premises identification, key boxes)
- Referenced Standards & Test Methods
- Special Building Construction Regulations (ignition‑resistant construction, roof/vent/assembly requirements)
- Appendices and Model Ordinances (vegetation plans, severity‑zone adoption, home‑hardening guidance)
- Fire Protection Requirements (fire protection plans, systems, safety element provisions)
- Referenced California Documents & Matrix (CCR/Title 14 & 19 cross‑references, statutory references)
- Vegetation Management & Defensible Space (vegetation plans, maintenance, fire‑smart characteristics)
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