The maximum speed limit in Michigan is 75mph (121km/h). regardless of speed limit signs. 20 mph: blind curves and narrow mountain highways. All rural non posted roads have a speed limit of 50mph, as per state law. Speed Limit Fact Sheet ( PDF ) Free to download, print & distribute. minimum speed limit on interstate in louisianaanson county warrant list. Other reduced speed limits do exist, but the lowest speed limit under normal conditions on New Mexico's freeways is 55mph, which can be found on two sections of Interstate 25: The first section being three miles from the Big I to Gibson Boulevard in Albuquerque, and the second being a short stretch near Raton Pass. [ 1977 ex.s. If you regularly cross state lines, youve probably noticed that the speed limits shift as soon as you cross the border. The speed limit drops from 55mph (89km/h) to 25mph (40km/h) at a traffic circle with US 378 and SC 391 in eastern Saluda County. [211] 70mph or lower speed limits have become unusual on rural Texas roads. Unless otherwise posted, the speed limit in North Carolina is:[134]. [2] Two territories in the U.S. Minor Outlying Islands have their own speed limits: 40mph (64km/h) in Wake Island, and 15mph (24km/h) in Midway Atoll. The relevance of posting the 40 mile per hour (mph) minimum speed limit on the Interstate Highway System has been increasingly called into question since the National Highway System Designation Act of 1995 repealed the federally sanctioned maximum speed limit. In Iowa, the majority of highways have a 55mph (90km/h) speed limit. 75. 10mph (16km/h) default speed limits apply, unless modified by the managing authority, on "service roads" within corporate limits. 65. The typeface of the numerals on the signs varies greatly depending on which jurisdiction made the sign, due to its non-standardized design. 63. Speed limits on 4-lane divided highways are normally 65mph (105km/h), although some stretches within cities are posted as low as 50mph (80km/h). Furthermore, GDOT has a policy of doing 510mph (8.016.1km/h) increments but never higher than 10mph. Counties and most towns must petition DOT to change a speed limit. Many of these other class roadways also had separate day and night speed limits as well. Improvements in the mid-2000s were done by SCDOT to warn motorists ahead of time for speed drops on various roadways. 65. Traffic Injury Prevention 9: 119-124, p. 122, Table II. Speed limit on any highway in Louisiana should not exceed 55 mph unless: It is a multi-lane divided highway. Posting proper speed limits smoothes the flow of traffic and aids effective law enforcement. New York law allows area speed limits. Outside of towns, these vehicles are limited to 35mph (56km/h) unless posted lower, except on the above-mentioned divided highway and parts of Centerline Road, which is limited to 40mph (64km/h). Other highways generally have speed limits of 55mph (89km/h) and in many cases much less. In 2006, the law was revised again, taking away the 'at all times' requirement and replacing it with a time-of-day system (usually school days, 7 a.m. to 5pm). Night speed limit signs are posted on some roads within Tucson city limits that do not have street lights. [233] There are a wide range of speed limits statewide, due to legislated flexibility for WSDOT in balancing the desire for transportation speed against safety considerations for any particular stretch of highway. [142] Most other rural highways, divided or undivided, have a 65mph speed limit (although some rural divided highways and some sections of undivided US 412 have a 70mph limit). Four-lane arterials by default are posted at 60mph (97km/h). This was increased to this back in August of 2015. "[116] If a speed limit sign indicated km/h, the number was circumscribed and "km/h" was written below. not . The posted truck speed limit does not apply to any auto stage towing a trailer or trucks less than 10,000 pounds gross weight. Frequent advertising campaigns on in-state radio stations remind residents of this (as of January 2013).[50]. Menu On May 10, 2019, Governor Steve Bullock signed HB 393 into law. A speed limit of 65mph is typically used on the state's four-lane divided highways, which include parts of the following roadways: A speed limit of 60mph is typically used in urban areas where a higher speed limit might be used, but traffic or geometric conditions constitute a lower speed limit, including the following areas: House Bill 3, passed during the 2008 First Extraordinary Session of the state legislature, permits speed limits up to 80mph (129km/h) on toll roads in the state; however, as of 2022[update], no such road has been constructed.[97][98]. Minimum speed limits may be posted on a road so that you may not drive slower than indicated. All neighborhoods and subdivisions in Delaware have a maximum speed limit of 25mph (40km/h) as set by state law. The speed limit on a freeway in Idaho is generally 80mph (129km/h) in rural areas and 65mph (105km/h) in urban areas. The minimum speed is usually 45mph (72km/h) when the speed limit is 55mph (89km/h), and 40mph (64km/h) when the speed limit is 50mph (80km/h). Some states and territories have lower truck speed limits applicable to heavy trucks. Speed Limits IC 9-21-5-0.1 Application of certain amendments to chapter Sec. [3][4] Unusual for any state east of the Mississippi River, much of Interstate95 (I-95) in Maine north of Bangor allows up to 75mph (121km/h), and the same is true for up to 600mi (966km) of freeways in Michigan. 32:71(B)(1), Maine carries the highest speed limit on the East Coast, with Interstate 95 carrying a 75mph (121km/h) limit between Old Town and Houlton. The State Traffic Commission typically sets speed limits following engineering studies performed by CONNDOT. Trucks are limited to 70mph (113km/h). As of March 27, 2018, the speed limit on I-90 from Randall Rd. [52] Urban freeways with speed limits of 50mph typically do not have minimum speed limits, such as on I-375 in St. Petersburg. Urban speeds are set, by default, to 30mph (48km/h). Prior to the National Maximum Speed Law that went into effect nationwide, North Carolina used to have 60mph speed limits on two-lane primary and secondary roads. Furthermore, the speed limit drops from 65mph on rural highways to 40mph (64km/h) at the approach to the CanadaUS border on Interstates 89 and 91, at Highgate and Derby Line, respectively. The speed limit in rural areas of Nebraska is 65mph unless otherwise posted, although rural divided highways and Super two highways are posted at 70mph. Are there Minimum Speed Limits in the USA Some states impose a minimum speed limit of 40mph, typically on freeways (motorways) to ensure that traffic using them keeps to a safe speed and flow of traffic. The sections are from Winnemucca to Battle Mountain and from Elko to Wells. ", "Michigan House approves 75 MPH speed limit hike", https://www.govregs.com/regulations/expand/title50_chapterI_part38_subpartC_section38.13, http://www.dot.state.mn.us/govrel/reports/2019/2018%20TH%20Speed%20Limit%20Report-final%20year%20report.pdf, "Mississippi Speed Limits, Laws, and Fines | YourMechanic Advice", http://tmn.truman.edu/theindex/2013/01/16/modot-increase-route-63-speed-limit/, "Bullock signs higher 80 mph interstate speed limit into law", FindLaw for Legal Professionals Case Law, Federal and State Resources, Forms, and Code, Official Montana Department of Transportation site, "61-8-310. As of now, the roads with an 80mph limit are: As of now, the only road with an 85mph speed limit is a 41-mile (66km) portion of Texas State Highway 130 from the northern terminus of its concurrency with US-183 (300432N 974133W / 30.075512N 97.692387W / 30.075512; -97.692387), southward to I-10 near Seguin(293648N 975235W / 29.613349N 97.876287W / 29.613349; -97.876287). The 75 zone was established by the Louisiana Department of Transportation and Development in 2011 after a 2010 bill authorized the DOTD to implement 75 zones where proven to be safe.[79][80][81][82]. Non-freeway speeds for passenger vehicles and trucks range from 55mph (89km/h) to 65mph (105km/h). In school zones, the speed limit can range from 20mph (32km/h) to 25mph (40km/h), depending on local authority. [129], The highest posted speed limit in New York is 65mph (105km/h), found only on limited-access freeways (including some state highways, most of the New York State Thruway and select Interstate Highways). POSTED SPEED LIMIT Posted speed limits (sometimes called regulatory speed limits) are those that are sign-posted along the road and are enforceable by law. Provided that no hazard exists that requires lower speed, the speed of any vehicle not in excess of the limit is deemed to be prima facie lawful. Rural two-lane roads typically have a speed limit of 55mph (89km/h) (the default limit for such roads), although FDOT is permitted to post 60mph (97km/h) on appropriately-suited highways. The highest speed limit in New Hampshire is 70mph (113km/h). Colorado Department of Transportation recently changed the speed limit from 75 to 70 mph on eastbound and . SPEED LIMIT. NC Highway 147 between NC Route 540 and I-40. Before September 1, 2011, Texas had a statutory 65mph (105km/h) night speed limit on all roads with a higher daytime limit. For more information, please contact lib-ir@fsu.edu THE FLORIDA STATE UNIVERSITY COLLEGE OF ENGINEERING EVALUATING THE RELEVANCE OF 40 MPH POSTED MINIMUM SPEED LIMIT ON RURAL INTERSTATE FREEWAYS By VICTOR MUCHURUZA Hawaii has a minimum speed along much of Interstate H-1 of only 10mph (16km/h) below the speed limit. Not only does the burden of proof rest upon the accused, a successful defense may involve expenses well in excess of the cost of a ticket, such as an expert witness. The top speed limit in most residential/urban and business district areas is at 30mph, and state law prohibits speed limits below 25mph on most common residential areas, though a speed limit of 25 is mainly only used in the New York City area and rarely seen outside of said area. Most Missouri lettered highways are 55mph, and in densely populated areas they can be less. Statutory minimum speed limits for passenger vehicles on interstates and other primary routes on the State Highway System . Copyright Adirondack Daily Enterprise | https://www.adirondackdailyenterprise.com | 54 Broadway, Saranac Lake, NY 12983 | 518-891-2600, No person shall drive a motor vehicle at such a slow speed as to impede the normal and reasonable movement of traffic except when reduced speed is necessary for safe operation or in compliance with law., You Know What ? Either of the following qualifies a crash as speed-related in accordance with U.S. government rules:[107]. Made with in Silicon Valley. The West Virginia Turnpike between Chelyan and Mahan, and I-77 between Princeton and Bluefield has a 60mph speed limit because of sharp curves. Speed limits on any interstate or controlled access facility on the State Highway System may be raised by NCDOT from the statutory limit, to a maximum of 70 MPH . [33][34][35][36][37], If the 85th percentile operating speed as measured by a Traffic and Engineering Survey[38] exceeds the design speed, compulsory legal protection is given to that speedeven if it is unsafe with regard to certain technical aspects such as sight distance. Such as I-285 and SR 400 in the Atlanta area was recently increased from 55mph (89km/h) to 65mph (105km/h) (with Variable speed limits on the north portion). Guam and the Northern Mariana Islands have speed limits of 45mph (72km/h). [108], Seven years later, a research study conducted by the Insurance Institute for Highway Safety, a long-time advocate of the federal National Maximum Speed Law, showed Montana's 75mph speed limit on rural Interstates was well received by motorists; traffic speed measurements taken by IIHS showed 76 percent of cars in compliance with 75mph on those roads. 70. C.(1) Any low-speed vehicle operated upon any divided highway, highway, roadway, or street shall be registered with the state of Louisiana, office of motor vehicles, in the same manner as motor vehicles intended for personal use; such low-speed vehicles shall be issued a license plate and shall be required to pay an annual registration license . In 2004, a law was passed revising Oregon's school speed limit laws. 46.2-877. In many communities, school zones are strictly enforced and speed traps in these areas are commonly employed. In 1941, a speed limit of 70mph (113km/h) was established, only to be reduced to 35mph (56km/h) during the war years (194245). As such, these stretches do not meet modern interstate highway standards, and have closely spaced interchanges, sharp curves, and/or limited sight distances. There are two 50mph areas in Louisville. Almost a decade after posting the 75mph limit, average speeds on South Dakotan rural freeways remain at or below the speed limit. A "State Speed Limit 55" sign should be installed after the curve. Two other two-lane highway sections, WY 130 from Interstate 80 south to Saratoga and US 85 from east of I-25 to Newcastle, increased to 70mph. The default limit on two-lane roads is 55mph (89km/h). The notable aspect of Virginia's current speed limit laws is that the Department of Transportation has no authority to raise speed limits above the statutory limits unless the General Assembly passes a statute permitting the change. A viewer asked, Is there A minimum speed limit on Florida highways?. [244] On I-80 in Cheyenne, I-25 in Cheyenne and Casper, and I-90 in Buffalo, the speed limit is 65mph (105km/h). Texas is the first state to lower speed limits for air quality reasons, although the lowered limits may not meaningfully improve air quality. In May 1996 legislation enacted by Governor Gary Johnson raised the absolute speed limit in New Mexico to 75mph. This rule in substance is a process for voting the speed limit by driving; and in contrast to delegating the speed limit to an engineering expert. Freeway: Interstate Highway or other state- or federally numbered road built to Interstate standards. Most two-lane roads with shoulders have a 60mph speed limit in Missouri. up to 10 mph over. The statute also allows 60mph (97km/h) speed limits on a number of specified non-limited access, multilane, divided highways.[223]. [154] Signs were erected on July 22, 2014. The only roadway in North Carolina currently with a minimum speed limit is the I-77 Express Lanes, with a minimum of 45mph. [229], Virginia law does not prescribe a fixed minimum speed limit, although a statute does authorize the posting of such limits where traffic and engineering studies indicate that they would be appropriate.[230]. Due to its enormous unpopularity, the Texas Commission on Environmental Quality examined alternatives to the 55mph speed cap. Freeways and expressways in urban areas are posted at 65mph. Cities may set their own school zone speed limits, so . School crossings with flashing yellow lights remain. [3] Drivers must also not drive so slowly that they impede the flow of traffic. Justice and Municipal Courts, Transportation Code Chapter 708. [157][158] A total of 396 miles (637km) of the Pennsylvania Turnpike system increased from 65 to 70mph (105 to 115km/h), including the extensions in Southwestern Pennsylvania. as determined by a traffic and engineering survey[32]this is the speed that no more than 15% of traffic exceeds; or (2) the prima facie limits mandated when certain criteria are met as described in the vehicle code. The minimum speed limit on Kansas Interstates is 40mph. 70 mph on rural interstate highways. Along rural freeways the limit is 75mph (121km/h) while suburban freeways are posted at 65mph (105km/h). $150. Los Alamos County alters the urban default and absolute speed limits to twenty five miles per hour and 50mph respectively, but posts signs at county lines. UDOT began a study on Monday (April 1, 2013) to place more zones on rural parts of I-15, I-80 and I-84. I-95 even as a 6 lane semi-urban built freeway, maintains a 70mph speed limit through the Florence area (as of June 2013, from just south of exit 160 to just south of exit 164, the speed limit has been reduced to 60mph, a textbook speed trap). There are several that have a speed limit of 60mph, including the following: In the urban areas of: St. Louis, Kansas City, Columbia, St. Joseph, and Springfield, the speed limit typically drops to 60mph on Interstates and freeways. Speed Limits by State 2023 Rural Interstates Speed Limits by State 2023 Show Source * All speeds are in miles per hour. The The state of Louisiana offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the past, or are current active military members. Our certified mobile mechanics perform over 600 services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools. The limits will vary between 40 and 60miles per hour, depending on traffic conditions, and could change by up to 5mph every 5minutes. Arterial roads have higher speeds and fewer access points, such as on- and off-ramps. The standard speed limit in Vermont stands at 50mph (80km/h). [200], In mid-2002, all speed limits in the HoustonGalveston area were capped at 55mph (89km/h). (Photo taken 12/9/20). Speed limits vary between states and are often different for rural interstates, urban interstates, and other types of roads. Please see our. Minimum fine. Prior to 1974, the New Hampshire Turnpike, along with rural sections of Interstates 89 and 93, were posted at 70mph (113km/h). Through school zones within 300 feet (91m), the default speed limit is 20mph (32km/h). [citation needed], Two lane state roads by default are posted at 55mph (89km/h). Many expressways and parkways in the New York City suburbs were posted as high as 65mph in the early 1970s. Please note that Hawaii speed limits vary between islands. On February 13, 2014, UDOT voted to increase the speed limit on I-80 from Salt Lake City across the Bonneville Salt Flats to the Nevada border to 80mph (129km/h). [126] There are reduced advisory speed limits for some roads during poor weather. A "thickly settled district" is an area where building structures such as residential and commercial are less than 200 feet (61m) apart for a distance of 1 mile (1.6km) or more. North of Frederick Road in Buchanan County the limit returns to 70mph until the Iowa state line. 20mph (32km/h) over limit or over 85mph (137km/h), Based on arterial and (major) collector sample data from the 2000, Speed under 25mph (40km/h) above limit and under 95mph (153km/h), and. Points are not assessed for speeds less than 10mph over the speed limit only on limited access highways, or for tickets received by Kentucky licensed drivers out of state. Be sentenced to up to 90 days of jail time. American Samoa has a maximum speed limit of 30mph (48km/h). Municipalities are normally required to seek approval from the State Traffic Commission for changes to the posted speed limits on locally owned streets after appropriate engineering studies are performed. Minimum speed limits. Due to variations in speedometer calibration, tire size, and margins of error in speed-detecting technology, its uncommon for an officer to pull a driver over for going less than five miles above the speed limit. To date, Minneapolis and Saint Paul have both adopted a citywide 20mph (32km/h) speed limit unless otherwise posted, though most major city streets are posted at 25mph (40km/h). General Provisions, Transportation Code Chapter 545. 30 mph: residential areas. Outside of the municipal limits, two-lane state and federal highways have a speed limit of 55mph (89km/h) unless otherwise posted, and 2 lane county roads have a speed limit of 45mph (72km/h) unless otherwise posted. On April 12, 1996, speed limit of 65mph allowed on rural interstates based on engineering studies. Our certified mobile mechanics perform over 600 services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools. I-385 has a 55mph speed limit at its terminus within the Greenville area. [47] In May 2015, the state of Delaware increased the speed limit on Interstate 95 from 55 to 65mph (89 to 105km/h) between the Maryland state line and the I-495 interchange. Some states have lower limits for trucks, some also have night and/or minimum speed limits . For clarity, Texas's environmental speed limits (ESLs) or their prospective ban did not apply to a substantial portion of NTTA roadways. Interstate 293's speed limit through downtown Manchester falls to 50mph (80km/h) as it runs along the Merrimack River, but increases to 55mph (89km/h) on either side of the city center. If the road is built to freeway standards, such as US20 between I-35 and Dubuque, it may have a minimum speed limit, but otherwise four-lane roads carry no minimum limit so slow-moving farm vehicles may use the roadway. Never drive so slowly that it becomes unsafe for traffic on the road. In 2018, these split speed limits on I-75 and I-40 in Roane and Loudon counties southwest of Knoxville were increased back to 70. In 2019 the West Virginia Legislature passed a resolution allowing WVDOT to raise speed limits on interstates to 75mph based on safety and traffic studies. Speed restrictions", "NCDOT, Strategic Highway Corridors, Facility Types and Control of Access Definitions", North Carolina Department of Transportation, "NCDOT, Strategic Highway Corridors, Facility Types and Control of Access Definitions: Expressways", "Speed limits rising to 70 mph for some state roads Sunday", "Speed limit on U.S. 30 bumped to 70 mph", "Rhode Island Division Of Motor Vehicles: General Information", "S.C. Code Of Laws Title 56 Chapter 5 Uniform Act Regulating Traffic On Highways", "What are the speed limits in South Dakota? Central business districts (CBDs) are posted at 30mph (48km/h). The maximum speed limit in Colorado is 75mph (121km/h) on rural Interstate highways and the toll road portion of SH 470 (E-470), although Interstate 70 in the Rocky Mountains has a 65mph (105km/h) limit because of steep grades and curves and a 50mph (80km/h) limit at the east and west ends of the Eisenhower Tunnel. in Des Plaines has been increased to 70mph, and from Mt. Flat rate pricing based on labor time and parts, Hand-picked, community-rated professionals, Trusted mechanics, rated by thousands of happy car Some other states have a hybrid system: speed limits may be prima facie up to a certain speed or only on certain roads. The National Park Service is responsible for highway maintenance and speed enforcement on the Parkway. Other states that allow 75 mph include Arizona, Arkansas, Colorado, Kansas, Louisiana, Maine, Nebraska, New Mexico, and North Dakota. The restrictions lower the truck speed limit to 55mph and restrict them to the right lane for the entire length of the elevated freeway. However, School speed limits may be set as high as 30mph to as low as 20mph. Other expressways that branch off of the main ones leaving downtown, such as The Edens Expressway and The Bishop Ford Expressway, also carry a 55mph limit. Title 18 Vehicle and Traffic (March 1997), chapter 22 "Moving Violations", New Mexico Statutes Chapter 66 Article 7 part 4, 5122. Interstate 495, which forms a bypass around Wilmington, features variable speed limit signs for environmental purposes. In this state, going 15 mph or more over the speed limit is automatically considered reckless driving. minimum speed limit on interstate in louisiana. Generally there is no minimum on interstates to allow for slow moving farm equipment. Possible prison time. Examples of 70mph limits are found on controlled-access portions of US 51 and SR 22, SR 111, SR 386, and SR 396. Anyone may request an increase by contacting their local Transportation Cabinet office and specifying the roadway to be raised. Virginia is the only state, along with the District of Columbia, that prohibits the use of radar detectors. Initial studies found that lower speed limits could provide roughly 1.5% of the emissions reductions required for Clean Air Act compliance. These signs typically display a 65mph (105km/h) speed limit, but this limit changes to 55mph (89km/h) on days when air quality is a concern. [155] On July 23, 2014, PennDOT announced the speed limit will be increased to 70mph on I-80 between interchange 101 in DuBois, Clearfield County and milepost 189 in Clinton County and on I-380 between interchange 8 (MP 10) near Mount Pocono, Monroe County and the junction with I-84 in Lackawanna County, on or around August 11, 2014, as a pilot project. Statutory speed limits in Florida are as follows:[52]. There are some interstate and US highway freeways with a 60mph (97km/h) speed limit, generally in urban or mountainous regions. In all rural areas in Oregon, the speed limit is 55 unless otherwise posted.[148]. With a maximum of that type you definitely need some type of minimum speed. No person shall drive a vehicle slower than such minimum speed limit except when necessary for safe operation or in compliance with law. [77] Other four-lane, non-limited access divided highways have a speed limit of 70mph, with 65mph on two-lane undivided roads, and 55mph on township roads. If you're within 10 MPH of the posted speed limit, your minimum fine will be $115. [156] On March 15, 2016, the Pennsylvania Turnpike Commission approved raising the speed limit on the remaining 65mph (105km/h) sections of the turnpike to 70mph (115km/h); sections that were posted at 55mph (89km/h) would retain that speed limit. Fines for speeding are at least $50 by law. Although the maximum posted speed limit in the state is 70mph (113km/h), state law allows a maximum posted speed of 75mph (121km/h) (for possible raising of speed limits in the future) on rural freeways. The speed limit on Interstate 93 through Franconia Notch State Park falls to 45mph (72km/h) where the highway narrows to one lane in each direction, but rises back to 70mph (113km/h) (in 10mph (16km/h) increments going south) once the highway leaves Franconia Notch. The 70-mph provision was added to Section 46.2-870 via an amendment effective on July 1, 2010. Overview of the speed limits on roads in the United States, A standard sign indicating a speed limit of 80mph (129km/h), a night-time speed limit of 65mph (105km/h), and a truck speed limit of 55mph (89km/h), Sign showing 65mph (105km/h) maximum and 40mph (64km/h) minimum, Night speed limit sign with nonreflective backing for day limit such that headlights at night render only the night limit visible, Minimum speed limits and night speed limits. At night time and also uncommon on the East Coast, the default speed limit is 45mph (72km/h) outside a business or residential district. Violators may be required to attend traffic school, and/or may be able to have their speeding fine reduced by attending these classes. down by the river said a hanky panky lyrics. Texas law generally prescribes a statutory speed limit of 70mph (113km/h) for any rural road that is numbered by the state or federal government (United States Numbered Highways and Interstate Highways)whether two lane, four lane, freeway, or otherwise60mph (97km/h) for roads outside an urban district that are not federal or state highways, and 30mph (48km/h) for streets in an urban district.[185]. States may also set separate speed limits for trucks and night travel along with minimum speed limits. For new construction and reconstruction projects on local roads and streets, the designer should attempt to provide minimum lengths of at least 500 ft. This speed creep may continue until the 85th percentile operating speed is comparable to speed psychologically perceived as uncomfortably hazardous. [199] However, follow-up studies found that the actual reduction is far less: With both of these facts combined, it is possible that the speed limit reductions only provide a thousandth of the total emissions reductions necessary for Clean Air Act compliance. Speeding laws in Louisiana. In February 2014, the state Assembly passed a bill that would raise the speed limit from 75 to 80mph (121 to 129km/h) on certain freeway segments that would meet safety standards. 55 mph on any highway in Louisiana unless otherwise stated. These speed limits are generally considered to be grandfathered in, per a policy from NCDOT stating new speed limits below 25mph "will generally not be approved.
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