{"id":7423,"date":"2026-08-22T18:35:49","date_gmt":"2026-08-22T18:35:49","guid":{"rendered":"https:\/\/gog-elec.com\/?p=7423"},"modified":"2026-08-22T18:37:19","modified_gmt":"2026-08-22T18:37:19","slug":"lighting-foundations","status":"publish","type":"post","link":"https:\/\/gog-elec.com\/fr\/blog\/lighting-foundations\/","title":{"rendered":"Fondations d'\u00e9clairage : Un guide complet des bases de poteaux d'\u00e9clairage"},"content":{"rendered":"<p>Vous avez achet\u00e9 un excellent poteau d\u2019\u00e9clairage et un ensemble de lumi\u00e8res \u2013 un poteau en acier de 25 pieds de hauteur pour votre parking avec quatre lumi\u00e8res LED. Cependant, le poteau ne remplit pas correctement sa fonction. Lorsqu\u2019il est install\u00e9 en plein air, il agit comme un levier important et subit une force due au mouvement du vent. La base du poteau d\u2019\u00e9clairage (qui est une construction en b\u00e9ton encastr\u00e9e dans le sol) est cens\u00e9e r\u00e9sister \u00e0 cette force, et si la base n\u2019est pas correctement r\u00e9alis\u00e9e, le poteau s\u2019incline.<\/p>\n<p>L\u2019article que vous \u00eates sur le point de lire sera tr\u00e8s utile pour les entrepreneurs, les gestionnaires d\u2019installations et les propri\u00e9taires lorsqu\u2019il s\u2019agit des fondations des poteaux d\u2019\u00e9clairage \u2013 ce qu\u2019elles sont, les types de fondations existants, la profondeur d\u2019installation requise, la conception technique des installations, les co\u00fbts et le processus d\u2019installation.<\/p>\n<blockquote><p>R\u00e9sum\u00e9 en bref : Une fondation d\u2019\u00e9clairage (base du poteau d\u2019\u00e9clairage) est un pieu en b\u00e9ton arm\u00e9 qui facilite le montage d\u2019un lampadaire ext\u00e9rieur. Il existe une r\u00e8gle d\u2019or : la profondeur doit \u00eatre d\u2019au moins 3 pieds avec une largeur de 2 pieds pour les poteaux jusqu\u2019\u00e0 18 pieds de hauteur, avec des profondeurs suppl\u00e9mentaires de 1 pied pour chaque tranche de 5 pieds de hauteur.<\/p><\/blockquote>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7425\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/What-Is-a-Lighting-Foundation.webp\" alt=\"What Is a Lighting Foundation\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>Qu\u2019est-ce qu\u2019une fondation d\u2019\u00e9clairage ?<\/h2>\n<p>Une fondation d\u2019\u00e9clairage (\u00e9galement appel\u00e9e base de poteau d\u2019\u00e9clairage, semelle de poteau ou fondation de poteau) sert de structure de support souterraine pour un poteau d\u2019\u00e9clairage ext\u00e9rieur. Typiquement, une fondation d\u2019\u00e9clairage est un pieu en b\u00e9ton arm\u00e9 plac\u00e9 dans un trou excav\u00e9 et \u00e9quip\u00e9 de boulons d\u2019ancrage (ou d\u2019une douille de poteau) fix\u00e9s dans le b\u00e9ton.<\/p>\n<p>Pourquoi faut-il une quantit\u00e9 aussi importante de b\u00e9ton juste pour supporter un simple poteau ? La raison est que le poteau agit comme un levier. Le vent agissant sur un poteau de 30 pieds et son luminaire provoque un moment de renversement \u00e0 la base du poteau \u2014 dans le cas d\u2019un poteau d\u2019\u00e9clairage standard avec 4 luminaires \u00e0 110 mph, ce moment peut atteindre environ 20 000 ft-lbs. La semelle en b\u00e9ton fournit un poids et une rigidit\u00e9 suffisants pour r\u00e9sister au moment de renversement, transf\u00e9rer la charge au sol environnant et fixer les boulons d\u2019ancrage en place.<\/p>\n<p>Deux m\u00e9thodes de montage des poteaux sont utilis\u00e9es :<\/p>\n<ul>\n<li>Poteau mont\u00e9 sur plaque de base (avec brides) \u2013 ce type de poteau poss\u00e8de une base plate qui est fix\u00e9e \u00e0 4 \u00e0 8 boulons d\u2019ancrage encastr\u00e9s dans un pieu en b\u00e9ton. Le plus couramment utilis\u00e9 pour les parkings et autres applications commerciales, car il simplifie le processus de remplacement du poteau.<\/li>\n<li>Poteau directement enterr\u00e9 dans le b\u00e9ton \u2013 ce type de poteau a son f\u00fbt encastr\u00e9 dans la semelle en b\u00e9ton. Il offre un aspect plus soign\u00e9 mais complique la proc\u00e9dure de remplacement du poteau.<\/li>\n<\/ul>\n<p>Pour le contexte \u00e9lectrique des poteaux d\u2019\u00e9clairage \u2014 le c\u00e2blage, les disjoncteurs et les commandes qui alimentent le luminaire \u2014 nos guides sur <a href=\"https:\/\/gog-elec.com\/fr\/blog\/uk-voltage-vs-us\/\" rel=\"nofollow\">Diff\u00e9rences de tension UK vs US<\/a> et <a href=\"https:\/\/gog-elec.com\/fr\/blog\/different-types-of-electrical-sockets\/\" rel=\"nofollow\">types de prises \u00e9lectriques<\/a> couvrent les normes associ\u00e9es que les circuits d\u2019\u00e9clairage doivent respecter sur diff\u00e9rents march\u00e9s.<\/p>\n<h2>Types de fondations de poteaux d\u2019\u00e9clairage<\/h2>\n<p>Les fondations d\u2019\u00e9clairage existent en plusieurs configurations, chacune adapt\u00e9e \u00e0 diff\u00e9rents types de poteaux et conditions de site :<\/p>\n<table>\n<thead>\n<tr>\n<th>Type<\/th>\n<th>How It Works<\/th>\n<th>Meilleur pour<\/th>\n<th>Co\u00fbt typique<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Pieu en b\u00e9ton coul\u00e9 + boulons d\u2019ancrage<\/strong><\/td>\n<td>Trou excav\u00e9 rempli de b\u00e9ton arm\u00e9 ; boulons d'ancrage coul\u00e9s en place avec un gabarit<\/td>\n<td>Poteaux standards pour parkings et rues (15-40 pieds)<\/td>\n<td>$200-$800 (b\u00e9ton), $500-$2,000+ main-d'\u0153uvre<\/td>\n<\/tr>\n<tr>\n<td><strong>Enterrement direct<\/strong><\/td>\n<td>F\u00fbt de poteau encastr\u00e9 directement dans le b\u00e9ton sans plaque de base<\/td>\n<td>Poteaux r\u00e9sidentiels, d\u00e9coratifs et plus petits<\/td>\n<td>$150-$500 (b\u00e9ton), moins de mat\u00e9riel<\/td>\n<\/tr>\n<tr>\n<td><strong>Fondation en b\u00e9ton pr\u00e9fabriqu\u00e9<\/strong><\/td>\n<td>Base en b\u00e9ton fabriqu\u00e9e en usine livr\u00e9e et plac\u00e9e dans un trou pr\u00e9par\u00e9<\/td>\n<td>Installations plus rapides, projets r\u00e9p\u00e9titifs, temps froid<\/td>\n<td>$400-$1,200 par base, main-d'\u0153uvre plus rapide<\/td>\n<\/tr>\n<tr>\n<td><strong>Pieux h\u00e9lico\u00efdaux \/ \u00e0 vis<\/strong><\/td>\n<td>Ancres \u00e0 vis en acier enfonc\u00e9es dans le sol, poteau mont\u00e9 dessus<\/td>\n<td>Sols meubles, sites sans b\u00e9ton, poteaux temporaires ou portables<\/td>\n<td>$300-$1,000 par pieu<\/td>\n<\/tr>\n<tr>\n<td><strong>Bases lest\u00e9es \/ portables<\/strong><\/td>\n<td>Blocs lourds en acier ou b\u00e9ton, sans excavation<\/td>\n<td>\u00c9clairage temporaire, chantiers, \u00e9clairage \u00e9v\u00e9nementiel<\/td>\n<td>$500-$3,000 par base<\/td>\n<\/tr>\n<tr>\n<td><strong>Fondations \u00e0 rupture contr\u00f4l\u00e9e<\/strong><\/td>\n<td>Base fragile con\u00e7ue pour se rompre en cas d'impact<\/td>\n<td>Poteaux en bord de route o\u00f9 le risque d'impact v\u00e9hicule est pr\u00e9sent<\/td>\n<td>+$200-$800 par rapport au standard<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>L'option la plus courante pour l'\u00e9clairage commercial et municipal permanent est le pieu en b\u00e9ton utilisant des bases en b\u00e9ton avec boulons d'ancrage. Cette option est la plus pr\u00e9visible structurellement et la plus conforme aux normes requises.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7426\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/How-Deep-Should-a-Light-Pole-Foundation-Be.webp\" alt=\"How Deep Should a Light Pole Foundation Be\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>Quelle doit \u00eatre la profondeur d'une fondation de poteau d'\u00e9clairage ?<\/h2>\n<p>C'est une question \u00e0 laquelle chaque installateur souhaite conna\u00eetre la r\u00e9ponse. Heureusement, la r\u00e9ponse suit la r\u00e8gle empirique standard de l'industrie.<\/p>\n<ul>\n<li>Normes minimales : Le rapport profondeur\/largeur de 3 pieds par 2 pieds a toujours \u00e9t\u00e9 utilis\u00e9 pour les poteaux jusqu'\u00e0 18 pieds de hauteur. La r\u00e8gle d'\u00e9chelle stipule qu'il faut ajouter plus de profondeur pour chaque 5 pieds que le poteau d\u00e9passe le minimum de 18 pieds. Par exemple, si le poteau mesure 28 pieds de haut, 4 pieds de fondation seront n\u00e9cessaires en profondeur (3 + 1), tandis qu'un poteau de 33 pieds n\u00e9cessiterait 5 pieds de profondeur.<\/li>\n<li>Formule d'ing\u00e9nierie : Les fondations de poteaux doivent mesurer environ 10%-15% de la hauteur du poteau plus 2 pieds, soit une profondeur similaire \u00e0 la r\u00e8gle d'\u00e9chelle.<\/li>\n<li>Diam\u00e8tre : Le diam\u00e8tre de la fondation doit \u00eatre d'environ deux pieds pour les poteaux plus petits et de trois pieds pour les installations de poteaux hauts et expos\u00e9s au vent fort.<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>Hauteur du poteau<\/th>\n<th>Profondeur recommand\u00e9e de la fondation<\/th>\n<th>Diam\u00e8tre \/ largeur de la fondation<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>8-12 ft (residential)<\/td>\n<td>2.5-3 ft<\/td>\n<td>1.5-2 ft<\/td>\n<\/tr>\n<tr>\n<td>15-20 ft (parking \/ landscape)<\/td>\n<td>3-3.5 ft<\/td>\n<td>2 ft<\/td>\n<\/tr>\n<tr>\n<td>25-30 ft (commercial parking)<\/td>\n<td>4-5 ft<\/td>\n<td>2-2.5 ft<\/td>\n<\/tr>\n<tr>\n<td>35-40 ft (roadway \/ area)<\/td>\n<td>5-6.5 ft<\/td>\n<td>2.5-3 ft<\/td>\n<\/tr>\n<tr>\n<td>60-80+ ft (high mast)<\/td>\n<td>8-12 ft+<\/td>\n<td>4-6 ft (engineered individually)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Critical consideration: the foundation must be deep enough to be below the frost line, which can vary based on your location. In northern states, frost depth can range from around 30 to 48 inches or deeper in Canada. If the base is above the frost line, it will move upward due to freeze-thaw cycles, which may lead to a pole slowly leaning downwards, which is one of the most common cases of premature failure in colder climates. It is very important to check your local codes regarding frost depth in your area.<\/p>\n<h2>What Determines the Foundation Size?<\/h2>\n<p>These numbers are merely the starting point. The real base will be calculated by the structural engineer for you specific pole and place, depending on the following factors:<\/p>\n<table>\n<thead>\n<tr>\n<th>Facteur<\/th>\n<th>Effect on Foundation<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Pole height<\/td>\n<td>Taller pole = longer lever = deeper, wider foundation<\/td>\n<\/tr>\n<tr>\n<td>Fixture weight and arm length<\/td>\n<td>Heavier or wider fixtures increase overturning moment<\/td>\n<\/tr>\n<tr>\n<td>Wind speed rating (ASCE 7)<\/td>\n<td>90 mph standard, 110 mph coastal, 130 mph hurricane zones \u2014 higher wind = bigger base<\/td>\n<\/tr>\n<tr>\n<td>Soil bearing capacity<\/td>\n<td>Weak soils (clay, fill, organic) need larger foundations or piles<\/td>\n<\/tr>\n<tr>\n<td>Frost depth<\/td>\n<td>Foundation must reach below frost line in cold climates<\/td>\n<\/tr>\n<tr>\n<td>Effective projected area (EPA) of fixtures<\/td>\n<td>More luminaire surface = more wind load<\/td>\n<\/tr>\n<tr>\n<td>Breakaway requirements<\/td>\n<td>Roadside poles may need frangible foundations or hinges<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>For a typical parking lot application, the engineer will define the overturning moment with the use of a pole&#8217;s effective projected area for the local design wind speed and calculate required concrete pier and anchor bolts to resist the overturning moment with the required safety factor. Always follow the foundation drawings from the manufacturer, containing complete data about the diameter of nuts, implemented bolts, and the concrete amount.<\/p>\n<h2>Foundation Components: Anchor Bolts, Rebar &amp; Concrete<\/h2>\n<p>Poured lighting foundations have three basic structural components:<\/p>\n<ul>\n<li>Anchor bolts: Standard anchor bolts are 4-8, 1-1.5 inch bolts fixed into the concrete through a positioning template (bolt ring). The diameter of the bolt circle is about 3-5 times as wide as the pole base diameter. The bolts should be placed in a fixed manner since even a slight displacement makes it impossible to lay the pole base plate correctly.<\/li>\n<li>Reinforcement: Rebar and its ratio that makes the strengthening system equal about 0.3-0.5. This material carries loading which can\u2019t be borne by plain concrete.<\/li>\n<li>Concrete: It is a mixed construction material with C28 of about 3000-4000 psi. The solidification of the concrete with this grade should proceed for 7-14 days before the pole is put in place.<\/li>\n<\/ul>\n<p>Accessories are also crucial\u2014a handhole outlet in the concrete base of the pole for wiring, a grounding lug connected with the base (from the NEC point of view) and, in some cases, a socket for the photo control device.The grounding electrode connection is a code requirement \u2014 learn more in our article on <a href=\"https:\/\/gog-elec.com\/fr\/blog\/what-are-the-4-types-of-electrical-outlets\/\" rel=\"nofollow\">electrical outlet and grounding basics<\/a>.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7427\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/Step-by-Step-Installation-Process.webp\" alt=\"Step-by-Step Installation Process\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>Step-by-Step Installation Process<\/h2>\n<p>The standard procedure for performing a poured concrete lighting foundation goes as follows, as executed by trained crews:<\/p>\n<ul>\n<li>Find out where the utilities run and obtain the permits. Contact your local utility locating service to come before any digging, and ensure that all building\/electricity permits are fulfilled.<\/li>\n<li>Dig your hole to specified depth and size, plus an allowance for forms. Observe if there are some voids, and should any be found, stop and consult an engineer.<\/li>\n<li>Install the rebar cage into the hole, keeping it off the bottom of the hole on blocks or spacers to keep it in the middle and at the proper depth.<\/li>\n<li>Properly fix the anchor bolt template to the right depth, especially after leveling it vertically, to ensure that the bolts it holds will be properly aligned.<\/li>\n<li>Before pouring concrete, install electrical conduit upstands, taking care of appropriate bends and with weather-resistant fittings.<\/li>\n<li>Pour concrete and vibrate it to remove air bubbles around the rebar and bolts. Grade the surface to the required height and slope.<\/li>\n<li>Check if the bolts are moving after the concrete is poured, the concrete has not yet hardened.<\/li>\n<li>Cure the concrete for a period of 7 to 14 days, keeping it damp with water. Do not attach the pole too soon.<\/li>\n<\/ul>\n<p>If you are doing this yourself, be honest about your skill level \u2014 anchor bolt alignment and concrete work are unforgiving. For a lighting fixture to work correctly once powered, the electrical connections must also be sound; our <a href=\"https:\/\/gog-elec.com\/fr\/blog\/how-to-replace-a-light-switch\/\" rel=\"nofollow\">light switch replacement guide<\/a> et <a href=\"https:\/\/gog-elec.com\/fr\/blog\/led-dimmer-switch-compatibility\/\" rel=\"nofollow\">guide de compatibilit\u00e9 des variateurs LED<\/a> show the level of care the electrical side deserves.<\/p>\n<h2>How Much Does a Light Pole Base Cost?<\/h2>\n<p>Foundation costs vary by region, soil, and pole size. Here are typical 2025-2026 figures per pole:<\/p>\n<table>\n<thead>\n<tr>\n<th>Item<\/th>\n<th>Typical Cost Range<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Concrete footing materials (mix, rebar, bolts, template)<\/td>\n<td>$200-$800<\/td>\n<\/tr>\n<tr>\n<td>Excavation and labor<\/td>\n<td>$500-$2,000+<\/td>\n<\/tr>\n<tr>\n<td>Engineering \/ stamped foundation drawings<\/td>\n<td>$200-$1,000<\/td>\n<\/tr>\n<tr>\n<td>Permits<\/td>\n<td>$50-$300<\/td>\n<\/tr>\n<tr>\n<td><strong>Total installed foundation<\/strong><\/td>\n<td><strong>$1,000-$4,000 per pole<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Complete pole + fixture + install (reference)<\/td>\n<td>$1,500-$7,000+ per pole<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Big jobs (more than 10 poles) usually get discounts of 15 to 25 percent on materials and labor costs per pole. Using precast foundations can save labor but will cost more per unit, and therefore might be something to consider for identical poles.<\/p>\n<h2>Frost Line and Cold-Climate Considerations<\/h2>\n<p>The frost line plays a particularly critical part in defining the depth of foundations in colder climates. Without extending below the frost line, a concrete pier will always lift up and move from season to season as frost builds up in the soil. Typical frost line depths:<\/p>\n<ul>\n<li>Southern US: 0\u201312 inches<\/li>\n<li>Mid-Atlantic: 24\u201336 inches<\/li>\n<li>Northern US: 36\u201360 inches<\/li>\n<li>Extreme northern regions (Alaska, Northern Canada): 60\u2013120 inches or more<\/li>\n<\/ul>\n<p>People in the regions with deep frost sometimes either go for direct burial of their poles or install the prefabricated and precast ones. In fact, it is common for contractors to pour foundations in late autumn because they will dry out prior to winter.<\/p>\n<h2>Alternatives to Poured Concrete<\/h2>\n<p>The conventional technique is using poured concrete; however, there are three alternatives which are good for specific situations.<\/p>\n<ul>\n<li>Prefabricated foundations made of concrete \u2014 ready to use and good to use in cold weather (no curing on place), for construction projects using this technology and on sites that are hard to form. Higher price compared to poured foundations, but installations of these foundations are quicker.<\/li>\n<li>Helical screw piles \u2014 metal screws used in this method are driven into the ground with the help of machines. The method is suitable in weak soil, at places with high groundwater tables, or in places that can\u2019t be excavated. This method is often used for temporary illumination and solar panel construction sites.<\/li>\n<li>Weighted portable bases \u2014 metal constructions that hold poles without excavating soil. This method is widely used in temporary lighting installations on construction sites.<\/li>\n<\/ul>\n<p>Each of the approaches provides the possibility to sacrifice the firmness of the construction in favour of quickness and convenience; it is very important to check with the pole manufacturer about the possibility of such substitutions regarding the project.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7428\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/Common-Mistakes-and-How-to-Avoid-Them.webp\" alt=\"Common Mistakes and How to Avoid Them\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>Common Mistakes and How to Avoid Them<\/h2>\n<table>\n<thead>\n<tr>\n<th>Mistake<\/th>\n<th>Consequence<\/th>\n<th>Prevention<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Anchor bolts misaligned<\/td>\n<td>Pole base plate won&#8217;t fit; re-drilling or re-pouring required<\/td>\n<td>Use a rigid template; verify alignment before and after pour<\/td>\n<\/tr>\n<tr>\n<td>Foundation above frost line<\/td>\n<td>Frost heave tilts the pole over winters<\/td>\n<td>Check local frost depth; extend below it<\/td>\n<\/tr>\n<tr>\n<td>Mounting pole before concrete cures<\/td>\n<td>Cracking, bolt movement, unstable base<\/td>\n<td>Wait 7-14 days; test cure strength if rushed<\/td>\n<\/tr>\n<tr>\n<td>Skipping rebar<\/td>\n<td>Foundation cracks under wind load<\/td>\n<td>Always use engineered rebar cage<\/td>\n<\/tr>\n<tr>\n<td>Pouring into frozen or soft soil<\/td>\n<td>Structural failure or settlement<\/td>\n<td>Geotechnical check; stop work if soil is poor<\/td>\n<\/tr>\n<tr>\n<td>No grounding bond<\/td>\n<td>Code violation; electrocution risk<\/td>\n<td>Bond grounding lug per NEC<\/td>\n<\/tr>\n<tr>\n<td>Undersized for wind zone<\/td>\n<td>Pole leans or fails in a storm<\/td>\n<td>Use the ASCE 7 wind speed for your area<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Inspection and Maintenance<\/h2>\n<p>After installation, lighting foundations will require periodic maintenance.<\/p>\n<ul>\n<li>Check annually for leaning poles, cracking or spalling concrete, loose or corroded anchor bolts and rusting of base plates.<\/li>\n<li>In coastal areas, perform an inspection every six months because salt corrosion of anchored steel occurs much sooner.<\/li>\n<li>Check the torque of bolts every year and re-torque if it is loose.<\/li>\n<li>Replace foundations if concrete is cracked through, bolts corroded to an unsafe level, or poles are noticeably out of plumb.<\/li>\n<\/ul>\n<h2>Questions fr\u00e9quemment pos\u00e9es<\/h2>\n<h3>What are the four types of foundations?<\/h3>\n<p>In construction, there are four types of traditional foundations such as: strip foundation (continuous concrete strip under the walls supporting the load), pad foundation (separate concrete pads below particular columns or poles \u2013 as used for light poles), raft or mat foundation (solid slab used for spreading the weight over a significant area) and pile foundation (drivenpile or bored pile, which brings the weight to denser soil). Light pole bases are mainly pad foundations but can be improved with pile foundations in weak soils.<\/p>\n<h3>How deep should a light pole foundation be?<\/h3>\n<p>According to standard rules, the depth of pole foundations should be 3 feet for poles with a height up to 18 feet, and one more foot for every 5 additional feet of pole height \u2014 meaning that the 25 to 30-foot poles would require a total depth of 4 to 5 feet, and the 35 to 40-foot ones would need about 5 to 6.5 feet. In the regions with freezing temperatures, the foundations have to be built below the frost line, which is normally 30-48 inches deep. It is always important to comply with the manufacturer&#8217;s foundation designs.<\/p>\n<h3>What is the typical cost of a concrete light pole base?<\/h3>\n<p>The price range for components of an ordinary business light pole base (such as mortar, anchor bolts, steel reinforcement) is generally $200-800. The entire installed cost of each light pole after taking into account ground excavation, labor, licenses, and engineering is usually $1,000-$4,000. If installing more than 10 poles at one time, the cost savings can be 15-25%.<\/p>\n<h3>What is the best type of foundation for a pole barn?<\/h3>\n<p>For the construction of a pole barn, the rule of thumb is to utilize pressure-treated posts that are set in concrete or gravel pier foundations. Utilizing the frost line as a guide, the entire post should be planted below the frost line if you happen to live in a cold climate. If, due to the weight of your barn, you need something more solid than a pier foundation, you can have your poles mounted on a concrete slab. This method is dissimilar to the foundation of a light pole because a pole barn has a roof and side load structures rather than wind-driven forces that would topple a tall pole.<\/p>\n<h2>R\u00e9f\u00e9rences<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.ledlightexpert.com\/infopage.asp?extra=1&amp;page=78\" rel=\"nofollow noopener\" target=\"_blank\">LED Light Expert \u2014 Light poles: selection &amp; installation guide (footing depth rules)<\/a><\/li>\n<li><a href=\"https:\/\/www.lightpole.com.cn\/light-pole-street-light-street-lamp-news\/835.html\" rel=\"nofollow noopener\" target=\"_blank\">Xinze Light Pole \u2014 Parking facility lighting pole engineering guide<\/a><\/li>\n<li><a href=\"https:\/\/www.ym-lighting.com\/news\/industry-news\/does-the-hole-require-a-concrete-pour-when-installing-a.html\" rel=\"nofollow noopener\" target=\"_blank\">Yangming Lighting \u2014 Does a light pole installation require a concrete pour?<\/a><\/li>\n<li><a href=\"https:\/\/www.lightpole.com.cn\/light-pole\/610.html\" rel=\"nofollow noopener\" target=\"_blank\">Xinze Light Pole \u2014 Structural and photometric design of exterior vertical supports<\/a><\/li>\n<li><a href=\"https:\/\/www.asce.org\/\" rel=\"nofollow noopener\" target=\"_blank\">ASCE 7 \u2014 Minimum design loads for buildings and other structures<\/a><\/li>\n<li><a href=\"https:\/\/www.nfpa.org\/codes-and-standards\/nfpa-70\" rel=\"nofollow noopener\" target=\"_blank\">NFPA 70 \u2014 National Electrical Code (NEC)<\/a><\/li>\n<\/ul>\n<h2>Conclusion<\/h2>\n<p>The foundation used in outdoor lighting is the unsung hero of every outdoor lighting task. The pedestal made of cement is designed to resist wind pressure, frost heaving, and many years of operation. You just have to remember certain conditions concerning its design: for all poles that are under 18 feet high, the base should be dug to 3 feet deep, while one extra foot should be added for every additional 5 feet of height. In cold regions, the foundation has to be below the frost line. The concrete used should have the strength of 3,000-4,000 psi, and the structure has to be reinforced using special rods and installed with anchor bolts correctly. The price of installation of such bases may vary from $1000 to $4000 and you should never hurry in making the concrete hard.<\/p>\n<p>The rule to remember when pouring cement for this type of foundation is simple: follow the drawings provided by the manufacturer, use data about wind pressure and frost in your country, and double-check the location of anchor bolts before the concrete sets!<\/p>","protected":false},"excerpt":{"rendered":"<p>You bought a great light post and light set \u2013 a 25 foot high pole made of steel for your parking lot with four LED lights. However, the pole does not perform its proper function. When the pole is installed in the open air, it acts like a large lever and experiences force due to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7424,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-7423","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/posts\/7423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/comments?post=7423"}],"version-history":[{"count":3,"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/posts\/7423\/revisions"}],"predecessor-version":[{"id":7431,"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/posts\/7423\/revisions\/7431"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/media\/7424"}],"wp:attachment":[{"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/media?parent=7423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/categories?post=7423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gog-elec.com\/fr\/wp-json\/wp\/v2\/tags?post=7423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}