Commercial Trucks and Large Vehicles on Residential Streets in San Diego

• Streets closed to commercial vehicles. Under Municipal Code section 85.04, the City Council may by resolution designate a street "the use of which is prohibited by any commercial vehicle of the rated capacity of one (1) ton or more," and the City erects signs on it. The rule does not apply to passenger buses, public utility vehicles regulated by the Public Utilities Commission, or "commercial vehicles having a destination or point of origin on such street." In other words, a truck delivering to an address on the street is generally allowed; a truck using it as a shortcut is not.
• The City's truck route map. The Transportation Department's Truck Route and Street Prohibition Map page says the map "features the acceptable routes for heavy trucks and the corresponding streets that prohibit heavy trucks in the San Diego communities south of downtown." The map image is labeled Barrio Logan, Council District 8, dated October 8, 2020, and shows truck routes in blue (including Harbor Drive) and truck prohibition streets in yellow. As of November 3, 2026, we did not find a citywide truck route map on sandiego.gov, so outside that area the posted signs are the guide.
• Through routes for freight. Section 85.01 lets the Council designate signed through traffic routes for vehicles of two or more tons capacity carrying merchandise, freight or material, and says covered drivers must use them except when impractical or when leaving the route to load or unload, "but then only by such deviation from the nearest freight route as is reasonably necessary." The same section and section 85.02 restrict certain trucks and loads in the downtown Central Traffic District between 10 a.m. and 6 p.m., except Sundays and holidays.
• Big rigs off the freeway. Section 82.25 makes it unlawful to operate an "interstate truck" (a truck tractor with a semi-trailer or trailer, as the code defines it) on any City street outside an interstate truck service area that has not been designated and marked as a route under that chapter, unless the vehicle is exempt under state law. Routes to terminals are approved by the City Engineer, with Caltrans approval for access off the federal highway system, and marked with trailblazer signs.
• Street-specific limits in the code. Article 4 lists several individual limits, for example: no load over 8,000 pounds on Aldine Drive between Fairmount Avenue and Monroe Avenue (section 84.14); no commercial vehicle with a gross vehicle weight of 10,000 pounds or more on 40th Street between Interstate 805 and Interstate 8, except vehicles regulated under certain Public Utilities Code sections (84.14.3); and no vehicle with a rated capacity of one ton or more on southbound Route 163 through Balboa Park, south of Interstate 8, weekdays 7 a.m. to 9 a.m. (84.14.2).

Caltrans' California MUTCD 2026, Chapter 2B sets the standard signs cities use:

• Exclusion signs. The manual lists No Trucks (R5-2), NO COMMERCIAL VEHICLES (R5-4) and NO THRU TRUCKS (R5-2b) among the signs that tell road users "State or local statutes or ordinances exclude designated types of traffic." An EXCEPT LOCAL DELIVERY plaque (R5-2aP) may be mounted below a No Trucks or NO THRU TRUCKS sign.
• Weight limit signs. The manual says weight limit signs (R12-1 through R12-7) "shall be used to indicate a section of highway or structure that has a vehicle weight restriction" and "shall be placed at each end of the affected portion of a highway section." It also says that if an exclusion is governed by vehicle weight, a weight limit sign should be used instead of a No Trucks type sign.
• TRUCK ROUTE sign. The TRUCK ROUTE (R14-1) sign "should be used to mark a route that has been designated to allow truck traffic."
• Damaged, missing or new signs. Report a damaged or missing truck or weight limit sign under Get It Done Traffic Sign. For questions about a street's truck status, the City's Traffic Service Request page lists the Traffic Engineering Division at 619-533-3126 and [email protected]; as of November 3, 2026, the form accepts requests for new safety-related signage. Under section 85.04, a new street-wide truck prohibition is designated by City Council resolution. Broken signals and other signs are covered in our traffic signals and signs guide.

• The rule. Municipal Code section 86.0149 says: "It is unlawful for any person to park any heavy duty commercial vehicle on a street in any residence district except: (a) while loading or unloading property, or (b) when such vehicle is parked in connection with, and in aid of, the performance of a service to or on a property in the block in which the vehicle is parked, or (c) the vehicle is parked immediately in front of or along side of premises actively devoted to industry or commerce and lying contiguous to the street."
• Which trucks. The code defines a heavy duty commercial vehicle as "a commercial vehicle having a manufacturer's gross vehicle weight rating of 10,000 pounds or more," and uses the Vehicle Code's definition of a residence district. A contractor's truck working on a house on the block, or a moving truck being loaded, falls within the exceptions.
• No sign needed. The City's Enforcement and Rules page lists this among the provisions that "apply whether or not there are signs or curb markings present," stating: "Parking heavy-duty commercial vehicles in residential areas is prohibited unless the vehicle is loading or unloading goods or has a service call in the immediate vicinity."
• Unattached semi-trailers. Section 86.0137(i) makes it unlawful "to park an unattached semi-trailer or auxiliary dolly on any street except for the purpose of loading or unloading it." The City's rules page notes that camping and utility trailers are not included in that provision.
• Trucks in private driveways. Section 84.01 bars driving a commercial vehicle (for that section, one with a rated capacity over one-half ton) in, on or across a private driveway approach, sidewalk area or driveway without the owner's or occupant's consent, if a sign or markings are in place saying use of the driveway is prohibited.
• Other limits still apply. Any vehicle, including a truck, may not stay in one spot on a street for more than 72 hours; see our abandoned vehicles and 72-hour rule guide. A truck blocking your driveway, a red zone or a hydrant is covered in our blocked driveways and illegal parking guide.

Separate rules cover large vehicles of any kind, commercial or not. The code defines an oversized vehicle as one, "including any attached trailers, vehicles or loads thereon, that exceeds 27 feet in length and 7 feet in height." Under section 86.0139, oversized, non-motorized and recreational vehicles may not park on a public street between 2 a.m. and 6 a.m., or within 50 feet of an intersection at any time. Section 86.0140 exempts, among others, oversized vehicles actively loading or unloading or there to perform a service on the block, government and public utility vehicles, and commercial loading zones; section 86.0141 says the rules take effect on the posting of signs.

The permit for residents' RVs, the full list of exceptions and how these rules fit with the 72-hour limit are explained in the RVs and oversized vehicles sections of our abandoned vehicles guide and our illegal parking guide.

From the City's parking citation fine schedule, which says all fine amounts include an $11.00 California state surcharge. Late fees can be added.

• Parked trucks: Get It Done or the non-emergency line. The City's parking rules page says: "To report illegal parking in your neighborhood, call 619-531-2000 or report the parking violation online." On the Get It Done Parking form, as of November 3, 2026, the types include Oversized Vehicle and 72 Hour Violation, but there is no separate type for a heavy commercial vehicle in a residential area; choose the closest type and describe the truck. The form says parking zone reports are "reviewed for enforcement 7 days a week, 7 a.m.-8:30 p.m.," to call 619-531-2000 for urgent issues outside that time, and that response times "vary based on the volume of priority calls."
• Trucks driving where they are not allowed: police. A truck on a posted no-truck street or over a posted weight limit is a moving vehicle, so Get It Done is not the tool. The Get It Done parking page says to report other police-related issues to Police Non-Emergency at 619-531-2000, and SDPD's contact page lists 619-531-2000 or 858-484-3154 for non-emergencies. SDPD's Traffic Division is listed at 858-495-7800 ([email protected]).
• Recurring cut-through traffic. SDPD's Request Additional Patrol form is for recurring issues in a neighborhood. It notes: "This is only a request. Additional patrol will be assigned as staffing availability permits."
• Who enforces. Parking rules are enforced by the Parking Enforcement Unit of the San Diego Police Department's Traffic Division, according to SDPD's Parking Enforcement Unit Operations Manual (May 2024). The City's parking contacts page lists Police Parking Enforcement at 9265 Aero Drive, 858-495-7800. Moving violations, such as driving on a prohibited street, go to SDPD officers through the non-emergency line.
• Noise from trucks. Trash truck hours and other noise rules are covered in our noise complaints guide. For how Get It Done works in general, see our guide to reporting a problem to the City of San Diego.

• Location. The street address or block and the nearest cross street. The Get It Done parking form asks for the exact location of the vehicle.
• The vehicle. License plate and state, color, make, and type (the form offers choices such as Flat Bed, Pickup, Trailer, Van and Motorhome), any company name on the side, and whether a trailer is attached.
• Time and pattern. When you saw it, how long it has been there, and whether anyone was loading, unloading or working at a nearby property, since those are exceptions under the code. For cut-through traffic, note the days and times it happens and the direction of travel.
• Photos. The Get It Done form asks for a photo to help SDPD locate the vehicle. Include a NO TRUCKS or weight limit sign in the frame if there is one. Take photos from the sidewalk or your property.
• Do not confront drivers. Do not approach or argue with a driver, block a truck, or step into the street to take pictures. Report what you saw and let Parking Enforcement or SDPD handle it; call 911 if anyone is in danger.