CWUIC · California Wildland-Urban Interface Code
Gate entrance requirements and emergency access through gated roads
For homeowners: gates on driveways that affect emergency access must be wide enough (lane width + 2 ft, minimum 14 ft), have 13'6" vertical clearance, be set back 30 ft from the road so a vehicle can stop off the road, and any security gate must be approved and have an approved emergency opening method maintained — all per **§ 403.1.10** of the CWUIC.
Last reviewed: July 6, 2026
What the code requires — plain English (controlling §)
Gates on fire‑service access roads and driveways must be wide enough, have minimum clearances, be setback so vehicles can stop clear of the road, and — where security gates are used — be approved and equipped with an approved emergency‑operation method that is maintained. These requirements are contained in § 403.1.10 (Gate entrances) of the CWUIC (which corresponds to CCR Title 14 §1273.09).
Gates must let fire apparatus through (width and vertical clearance), let a vehicle wait off the road (30‑ft setback), and, if secured, must allow emergency opening approved by the local authority.
Requirements in detail
Key defined terms (first use bolded):
- Gate entrance — the opening controlling access from a road to a driveway or private road; requirements are in § 403.1.10.
- Security gate — a gate installed for security that restricts access; requires approval and an approved emergency operation. § 403.1.10(d).
Summary table — decision‑relevant dimensions and the code reference
| Decision / dimension | Required value or description | Code Reference |
|---|---|---|
| Minimum gate width | At least two (2) feet wider than the width of the traffic lane(s) serving the gate, and at least 14 feet unobstructed horizontal clearance | § 403.1.10(a) |
| Minimum vertical clearance | 13 feet 6 inches (13' 6") unobstructed | § 403.1.10(a) |
| Gate setback from roadway | Gates from a road to a driveway must be located at least 30 feet from the roadway so a vehicle can stop without obstructing traffic | § 403.1.10(b) |
| One‑way road (single traffic lane) requirements | Where a one‑way road with a single traffic lane serves a gated entrance, provide a 40‑foot turning radius | § 403.1.10(c) |
| Security gates | Must not be installed without approval; where installed they must have an approved means of emergency operation and be maintained operational. Approval is by the local authority having jurisdiction. | § 403.1.10(d) |
Additional context and cross‑references:
- These gate rules sit inside the CWUIC access requirements (Section 403). Section 403 requires roads/driveways to support emergency wildfire apparatus and civilian egress concurrently; gate requirements are part of that system of access standards.
- Driveways and traffic lanes have minimum lane width and clearance requirements that interact with gate sizing (see § 403.1.2 and § 403.1.1 definitions).
Practical notes on each requirement
- Width: Always calculate gate width as the traffic lane width plus 2 feet, but never less than 14 feet. If the traffic lane is wide (e.g., 20 ft for a two‑lane section), the gate must be lane width + 2 ft. § 403.1.10(a).
- Vertical clearance: Structural elements, crossbars, signs or vegetation must not reduce the 13'6" required vertical clearance. § 403.1.10(a).
- Setback: The 30‑ft setback is to let an entering vehicle stop clear of traffic on the public road. Positioning and gate swing/slide must not obstruct that required stopping area. § 403.1.10(b).
- Turning geometry: If the approach is a one‑way single lane, design a 40‑ft turning radius so apparatus and other vehicles can maneuver to/from the gate; include space for safe approach and departure. § 403.1.10(c).
- Security gates: These are permitted only with local approval; approval will include the emergency‑operation method (key box, Knox, remote release, break‑away manual operation, etc.) and maintenance obligations. Keep documentation of the approved emergency method with the AHJ (authority having jurisdiction). § 403.1.10(d).
Exceptions & special cases
- The CWUIC text states that security gates shall not be installed without approval — there is no blanket exception for private property; local AHJ approval is required for any security gate and its emergency operation. § 403.1.10(d).
- The Section 403 access standards do not apply to roads used solely for agriculture, mining, timber management, or harvesting of forest products; such roads may be exempt from the gate rules, subject to 14 CCR §1270.03(d). If your gated road serves non‑exempt development, the gate rules apply.
- CWUIC cross‑references: where a gated road includes a bridge, turnout, dead‑end, or unique grading/structure, apply the applicable requirements in §§ 403.1.7, 403.1.8 and 403.1.9 as well (turnouts, bridges/structures, dead‑end roads).
Common mistakes
- Mistaking the minimum 14‑ft gate width as an absolute (it is a minimum; actual required width = lane width + 2 ft). § 403.1.10(a).
- Forgetting the 13'6" vertical clearance — overhead cables, vegetation, or decorative arbors can reduce clearance and cause noncompliance. § 403.1.10(a).
- Placing gates too close to the public road so a vehicle cannot stop without blocking traffic (violates the 30‑ft setback). § 403.1.10(b).
- Installing a security gate without documented AHJ approval or without an approved emergency opening method and ongoing maintenance. § 403.1.10(d).
- Ignoring the turning‑radius requirement on one‑way approaches: a gated entrance served by a single one‑way lane must use a 40‑ft turning radius. § 403.1.10(c).
Worked example — concrete scenario
Scenario: A private development has a single one‑way access road that is a 12‑ft single traffic lane and will be gated at the driveway connection to the public road.
Apply the rules:
- Gate width: lane width (12 ft) + 2 ft = 14 ft minimum. This also meets the 14‑ft absolute minimum. § 403.1.10(a).
- Vertical clearance: ensure gate opening and any attached operator provide 13'6" clearance. § 403.1.10(a).
- Setback: locate the gate at least 30 ft from the edge of the public roadway so a vehicle can stop without obstructing traffic. § 403.1.10(b).
- Turning geometry: provide a 40‑ft turning radius for the approach (per one‑way road requirement). § 403.1.10(c).
- Security gate controls: if the gate will be locked or electrically operated, obtain local AHJ approval and provide an approved emergency opening method (e.g., Knox box, fire department switch, radio release), and maintain it operational. § 403.1.10(d).
If any of the above cannot be achieved, discuss an alternative with the local AHJ; approvals and exceptions must be documented.
Related provisions (CWUIC)
- § 403.1.2 — Road and lane width, minimum lane dimensions and clearance requirements governing traffic lanes and driveways.
- § 403.1.7 — Turnouts required dimensions and placement (turnouts interact with single‑lane approaches).
- § 403.1.8 — Road and driveway structures (bridges and elevated surfaces; posting of load limits).
- § 403.1.9 — Dead‑end road length limits and turnaround requirements (applies where gates are at dead‑end entrances).
- § 403.2.1 — Road naming/signing intent to facilitate locating emergency response.
- CCR Title 14 §1273.09 — The Title 14 text that corresponds to the gate‑entrance requirements in the CWUIC.
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 § 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.
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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 § 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 § 1273.05 High relevance — show source text
If a hammerhead/T is used instead, the top of the “T” shall be a minimum of sixty (60) feet in_ length. (c) Driveways exceeding 150 feet in length, but less than 800 feet in length, shall provide a turnout near the midpoint of the drive- way. Where the driveway exceeds 800 feet, turnouts shall be provided not more than 400 feet apart. (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.
[CCR, Title 14 §1273.05]
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WILDLAND-URBAN INTERFACE AREA REQUIREMENTS
FIGURE A—TURNAROUND WITH TWO 10-FOOT TRAFFIC LANES
FIGURE B—TURNAROUND WITH ONE 10-FOOT TRAFFIC LANE
403.1.7 Turnouts. Turnouts shall be a minimum of twelve (12) feet wide and thirty (30) feet long with a minimum twenty-five-foot taper on each end. [CCR, Title 14 §1273.06]
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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(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.
CWUIC § 402.1.1 High relevance — show source text
Title 19, Division 1]|||||||||||||||||||||||| |Chapter / Section|||||||||||||||||||||||| |402|||†||||||||||||||||||||| |402.1.1|||X||||||||||||||||||||| |402.1.2|||X||||||||||||||||||||| |402.1.2.1|||X||||||||||||||||||||| |402.2.1|||X||||||||||||||||||||| |402.2.2|||X||||||||||||||||||||| |402.3|||X||||||||||||||||||||| |404.1|||X||||||||||||||||||||| |404.2|||X||||||||||||||||||||| |404.4|||X||||||||||||||||||||| |404.5|||X||||||||||||||||||||| |404.6_Reserved_|||X||||||||||||||||||||| |404.7|||X||||||||||||||||||||| |404.8|||X|||||||||||||||||||||- The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Wildland-Urban Interface Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
The California Code of Regulations (CCR), Title 14, Division 1.5 provisions that are found in the California Wildland-Urban Interface Code are not listed in the Matrix Adoption Tables as they are not within the State Fire Marshal’s authority to adopt. These provisions are a reprint from the current CCR, Title 14, Division 1.5 text for the code user’s convenience only and are identified in the body of the code by square brackets containing references to applicable Title 14 sections.
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4 WILDLAND-URBAN INTERFACE AREA REQUIREMENTS
User notes:
About this chapter: Chapter 4 provides requirements that apply to all occupancies in the wildland-urban interface and pertain to all of the following:
Fire service access to the property that is to be protected, including fire apparatus access roads and off-road driveways.
Premises identification.
Key boxes to provide ready access to properties secured by gated roadways or other impediments to rapid fire service access.
Fire protection water supplies, including adequate water sources, pumper apparatus drafting sites, fire hydrant systems and system reliability.
Fire department access to equipment such as fire suppression equipment and fire hydrants.
SECTION 401—GENERAL
401.1 Scope. Wildland-urban interface areas shall be provided with emergency vehicle access and water supply in accordance with this chapter.
401.2 Objective. The objective of this chapter is to establish the minimum requirements for emergency vehicle access and water supply for buildings and structures located in the wildland-urban interface areas.
CWUIC § 1274.02 High relevance — show source text
[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. (c) Address signs along one-way Roads shall be visible from both directions. (d) Where multiple addresses are required at a single driveway, they shall be mounted on a single sign or post. (e) Where a Road provides access solely to a single commercial or industrial business, the address sign shall be placed at the near- est Road intersection providing access to that site, or otherwise posted to provide for unobstructed visibility from that intersection.
(f) In all cases, the address shall be posted at the beginning of construction and shall be maintained thereafter.
[CCR, Title 14 §1274.04]
SECTION 404—WATER SUPPLY
404.1 General. An approved water source shall have an adequate water supply for the use of the fire protection service to protect buildings and structures from exterior fire sources or to suppress structure fires within the wildland-urban interface area of the jurisdiction in accordance with this section.
404.2 Required water supply. An approved water supply capable of supplying the required fire flow for structural fire protection and wildland fire exposure shall be provided to the premises on which facilities, buildings or portions of buildings are hereafter constructed or moved into or within the jurisdiction in accordance with Section 507 of the California Fire Code.
404.3 Draft sites. Approved draft sites shall be provided at natural water sources intended for use as fire protection for compliance with this code. The design, construction, location, access and access maintenance of draft sites shall be approved by the code official.
404.3.1 Access. The draft site shall have emergency vehicle access from an access road in accordance with Section 403.
404.3.2 Pumper access points. The pumper access point shall be either an emergency vehicle access area alongside a conforming access road or an approved driveway not longer than 150 feet (45 720 mm). Pumper access points and access driveways shall be designed and constructed in accordance with all codes and ordinances enforced by this jurisdiction. Pumper access points shall not require the pumper apparatus to obstruct a road or driveway.
CWUIC § 304.8 High 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.
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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 § 1-2 High relevance — show source text
CHAPTER TOPICS Col2 CHAPTER SUBJECT 1-2 Administration and Definitions 3-4 Wildland-Urban Interface Area Designation and Requirements 5 Building Construction Regulations 6 Fire Protection Requirements 7 Referenced Standards Appendices A-I Adoptable and Informational Appendices Chapter 1 Scope and Administration.
Chapter 1 establishes the limits of applicability of the code and describes how the code is to be applied and enforced. The provisions of Chapter 1 establish the authority and duties of the code official appointed by the authority having jurisdiction and also establish the rights and privileges of the design professional, contractor and property owner.
Chapter 2 Definitions.
Chapter 2 is the repository of the definitions of terms used in the body of the code. The user of the code should be familiar with and consult this chapter because the definitions are essential to the correct interpretation of the code and because the user may not be aware that a term is defined.
Chapter 3 Wildland-Urban Interface Areas.
Chapter 3 provides for the fundamental aspect of applying the code—the legal declaration and establishment of wildland-urban interface areas within the adopting jurisdiction, mapping of the area, periodic review and updates.
Chapter 4 Wildland-Urban Interface Area Requirements.
The requirements of Chapter 4 apply to all occupancies in the wildland-urban interface and pertain to all of the following:
Fire service access to the property that is to be protected, including fire apparatus access roads and off-road driveways.
Premises identification.
Key boxes to provide ready access to properties secured by gated roadways or other impediments to rapid fire service access.
Fire protection water supplies, including adequate water sources, pumper apparatus drafting sites, fire hydrant systems and system reliability.
Fire department access to equipment such as fire suppression equipment and fire hydrants.
Chapter 5 Special Building Construction Regulations.
The regulations in Chapter 5 establish minimum standards for the location, design and construction of buildings and structures based on construction within a Fire Hazard Severity Zone or a Wildland-Urban Interface (WUI) Area.
The construction provisions of Chapter 5 are intended to supplement the requirements of the California Building Code and Califor- nia Residential Code and address mitigation of the unique hazards posed to buildings by wildfire and to reduce the hazards of building fires spreading to wildland fuels. This is accomplished by requiring ignition-resistant construction materials.
Chapter 6 Fire Protection Requirements.
Chapter 6 contains additional requirements for development and construction in Local Responsibility Areas (LRA) designated as Very High Fire Hazard Severity Zones and areas designated by the State Fire Marshal as State Responsibility Areas (SRA). While many of these provisions are found in Title 14 and Title 19 of the California Code of Regulations, they are replicated here for the code user. The local jurisdiction has the authority to apply the same regulations to LRA when the regulations are adopted by local ordinance.
The requirements in this chapter reference the process for adoption of Very High Fire Hazard Severity Zones in the LRA; criteria for evaluating existing subdivisions that are at significant fire risk and are without an adequate secondary egress; and criteria for fire safety provisions required in the Safety Element of a city or county General Plan.
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE xi
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
CWUIC § 6.1 Medium 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 § 403.2 Medium relevance — show source text
APPENDIX I-4 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
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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 § 3.1 Medium relevance — show source text
10|23/4| |F/C-6-RC-25|6″|6″ deep (4800 psi) concrete deck;1/4″ rein-
forcement bars at 71/2″ pitch with7/8″
cover;3/8″ main reinforcement bars at
31/2″ pitch perpendicular with7/8″ cover;
13′1″ span restrained.|195
psf|4 hrs|||7|1, 7|4| |F/C-6-RC-26|6″|6″ (4650 psi) concrete deck;1/4″ reinforce-
ment bars at 71/2″ pitch with7/8″ cover;3/8″
main reinforcement bars at 31/2″ pitch
perpendicular with1/2″ cover; 13′1″ span
restrained.|195
psf|2 hrs
23 min|||7|1, 2|21/4| |F/C-6-RC-27|6″|6″ deep (6050 psi) concrete deck;1/4″ rein-
forcement bars at 71/2″ pitch with7/8″
cover;3/8″ reinforcement bars at 31/2″
pitch perpendicular with1/2″ cover; 13′1″
span restrained.|195
psf|3 hrs
30 min|||7|1, 10|31/2| |F/C-6-RC-28|6″|6″ deep (5180 psi) concrete deck;1/4″ rein-
forcement bars at 8″ pitch with3/4″ cover;
1/4″ reinforcement bars at 51/2″ pitch
perpendicular with1/2″ cover; 13′1″ span
restrained.|150
psf|4 hrs|||7|1, 7|4|2025 CALIFORNIA EXISTING BUILDING CODE RESOURCE A-93
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
RESOURCE A—GUIDELINES ON FIRE RATINGS OF ARCHAIC MATERIALS AND ASSEMBLIES
TABLE 3.1—continued
FLOOR/CEILING ASSEMBLIES—REINFORCED CONCRETECol2 Col3 Col4 Col5 Col6 Col7 Col8 Col9 Col10 ITEM
CODEASSEMBLY
THICKNESSCONSTRUCTION DETAILS PERFORMANCE PERFORMANCE REFERENCE NUMBER REFERENCE NUMBER REFERENCE NUMBER NOTES REC.
HOURSITEM
CODEASSEMBLY
THICKNESSCONSTRUCTION DETAILS LOAD TIME PRE-BMS-92 BMS-92 POST-BMS-92 POST-BMS-92 POST-BMS-92 F/C-6-RC-29 6″ 6″ thick (4180 psi) concrete deck; 4″ × 3″ ×
10 lbs R.S.J.; 2′6″ C.R.S.
Frequently asked questions
Can I install a lock on a private gate without notifying the fire department?
No. Security gates cannot be installed without approval; the local authority having jurisdiction must approve the gate and its emergency‑operation method. § 403.1.10(d).
Is 14 feet always enough for a fire truck to pass through a gate?
Not always — 14 feet is the minimum gate horizontal clearance, but the required gate width is traffic lane width + 2 feet; if serving wider lanes the gate must be wider. § 403.1.10(a).
Do these gate rules apply to agricultural roads?
The CWUIC’s Section 403 standards do not apply to roads used solely for agriculture, mining, timber management, or harvesting of forest products per 14 CCR §1270.03(d). If the gated road serves residences or development, the rules apply.
What counts as an approved emergency operation for a security gate?
The code requires an approved means of emergency operation but does not prescribe one fixed method; the local AHJ approves the method (examples commonly accepted by AHJs include Knox boxes, fire‑dept release switches, or approved radio/remote release systems). § 403.1.10(d).
If my road is a one‑way single lane, is a 40‑ft turning radius mandatory?
Yes — where a one‑way road with a single traffic lane provides access to a gated entrance, a 40‑foot turning radius shall be used. § 403.1.10(c).
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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Required road, driveway widths and vertical/horizontal clearances
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Fire apparatus access (roads, driveways, turnouts, gates)
California Wildland-Urban Interface Code