LA
Louisiana oversize permit rules
What Louisiana charges for a single-trip OS/OW permit, the limits that trigger one, and the escort thresholds — read from the state’s own publication. This rule has been in effect since 2025-06-20; we last read the source on 2026-07-10.
Oversize permit
$10 per day
One price for a single-trip permit, whatever the dimensions. A 9-foot-wide load and a 16-foot-wide load pay the same.
Overweight permit
From $45
Scales with weight and axle count — there is no single figure.
A load that is both oversize and overweight pays this fee only, not both.
+ $20 Permigo service fee per permit, state fees at cost.
Legal limits
Exceed any one of these in Louisiana and you need a permit for this state.
| Limit | Interstate | Off-interstate |
|---|---|---|
| Width | 8'6" | 8'6" |
| Height | 14'0" | 13'6" |
| Length | 65'0" | 65'0" |
| Gross weight | 80,000 lbs | 80,000 lbs |
| Single axle | 20,000 lbs | |
| Tandem axle | 34,000 lbs | |
| Tridem axle | 42,000 lbs | |
| Trailer length | 59'6" |
What the permit costs
Louisiana prices a single-trip permit as flat rate. One price for a single-trip permit, whatever the dimensions. A 9-foot-wide load and a 16-foot-wide load pay the same.
Escort requirements
Thresholds by road class. Where two classes differ, the road you are actually on governs.
Multi-lane / Interstate
| Width | Requirement |
|---|---|
| Over 12'0" | 1 rear escortOver 12' to 16' wide: 1 private escort — manual p.64 verbatim: 'Escort vehicles must travel behind overwidth loads on multi-lane highways and in front of them on two-lane highways' (this tier: BEHIND the load on multi-lane highways). One escort may cover only ONE overwidth load.Over 12' wide: barred from listed interstate segments weekdays 7–9 a.m. & 3:30–5:30 p.m. in Shreveport (I-20), Monroe (I-20), Lake Charles (I-210 + I-10), Baton Rouge (I-110 + I-10 Bluebonnet–river + I-12), New Orleans (I-610 + I-10 Paris Rd–Williams Blvd); >12' wide also barred in the city of New Orleans (non-interstate) weekdays 7–9 a.m. & 3:30–6 p.m. (manual pp.38–39). |
| Over 14'0" | Not permittedLAC 73:I-309.C.2: 'Vehicles and loads over 14 feet wide are prohibited from moving on interstate highways' — the rule is in force but absent from the 2025 manual; confirm routing with the Truck Permit Office (800-654-1433) before planning a >14'-wide interstate leg. |
| Over 16'0" | 1 police escortOver 16' wide: Louisiana State Police escort REQUIRED; 'Self or private escorts shall not escort any movement in excess of 16 feet wide' (LAC §1901.B.15). LSP fee: mileage-based, $25 minimum (RS 32:387) + off-duty trooper pay — arrange via the Troop nearest the movement. |
| Over 18'0" | 2 police escortsOver 18' wide: FRONT AND REAR State Police escorts (manual p.37) + a DOTD district representative IS required (LAC §715.C; the manual softens to 'may' — the LAC is) |
| Height | Requirement |
|---|---|
| Over 15'10" | Conditions applyOver 15'10" high: height-indicator POLE TRUCK travels in front on the state-maintained system — 'Loads traveling only on Interstate highways are exempt' (manual p.37). |
| Over 16'5" | route surveyOver 16'5" high: pre-approved route from the Truck Permit Office at least 48 hours in advance (manual p.20; LAC §716 routes the authorization through district offices — the TPO-48hr practice is) |
| Over 16'8" | Conditions applyOver 16'8" high: a utility-lift pole truck (approved instruments to safely lift utility lines) is required — waivable if the route has been stripped with PVC pipe or boards, prior approval required (manual p.37). |
| Over 18'0" | Conditions applyOver 18' high: bucket truck required (possibly lower in utility-dense areas) + district-office/utility coordination; front and rear State Police escorts MAY be required (discretionary, manual p.37). |
| Length | Requirement |
|---|---|
| Over 90'0" | 1 rear escortOver 90' to 125' long: 1 private escort BEHIND the load on ALL highways ('Escort vehicles must travel behind overlength vehicles and loads on all highways', manual p.64). No length-based second-escort tier exists — one escort may even cover two overlength loads moving together. 90' is also the Monthly/Yearly Oversize Permit envelope cap. |
| Over 125'0" | 1 police escortOver 125' long: State Police escort; hauling trailers must be equipped with steerable/trackable dollys (manual p.37). |
| Weight | Requirement |
|---|---|
| Over 254,000 lbs | route survey · superload |
| Over 254,000 lbs | Marking requiredOver 254,000 lb (all highways): 4–6 weeks detailed review; fee = $15 + $0.75 per ton-mile in excess of 80,000 lb PLUS a structural-evaluation fee: $187.50 timber/concrete-slab bridges; $1,275 truss/continuous/movable + all Mississippi River structures; $750 all other (manual p.46). Loads exceeding 900,000 lb may require analysis by an independent engineering firm. LSP on weight moves is discretionary — no codified weight trigger (the old >238k police flag was uncodified). |
2-lane / non-designated
| Width | Requirement |
|---|---|
| Over 12'0" | 1 front escortOver 12' to 16' wide: 1 private escort — manual p.64 verbatim: 'Escort vehicles must travel behind overwidth loads on multi-lane highways and in front of them on two-lane highways' (this tier: in FRONT of the load on two-lane highways). One escort may cover only ONE overwidth load.Over 12' wide: barred from listed interstate segments weekdays 7–9 a.m. & 3:30–5:30 p.m. in Shreveport (I-20), Monroe (I-20), Lake Charles (I-210 + I-10), Baton Rouge (I-110 + I-10 Bluebonnet–river + I-12), New Orleans (I-610 + I-10 Paris Rd–Williams Blvd); >12' wide also barred in the city of New Orleans (non-interstate) weekdays 7–9 a.m. & 3:30–6 p.m. (manual pp.38–39). |
| Over 16'0" | 1 police escortOver 16' wide: Louisiana State Police escort REQUIRED; 'Self or private escorts shall not escort any movement in excess of 16 feet wide' (LAC §1901.B.15). LSP fee: mileage-based, $25 minimum (RS 32:387) + off-duty trooper pay — arrange via the Troop nearest the movement. |
| Over 18'0" | 2 police escortsOver 18' wide: FRONT AND REAR State Police escorts (manual p.37) + a DOTD district representative IS required (LAC §715.C; the manual softens to 'may' — the LAC is) |
| Height | Requirement |
|---|---|
| Over 15'10" | 1 front escort · height poleOver 15'10" high: height-indicator POLE TRUCK travels in front on the state-maintained system — 'Loads traveling only on Interstate highways are exempt' (manual p.37). |
| Over 16'5" | route surveyOver 16'5" high: pre-approved route from the Truck Permit Office at least 48 hours in advance (manual p.20; LAC §716 routes the authorization through district offices — the TPO-48hr practice is) |
| Over 16'8" | Conditions applyOver 16'8" high: a utility-lift pole truck (approved instruments to safely lift utility lines) is required — waivable if the route has been stripped with PVC pipe or boards, prior approval required (manual p.37). |
| Over 18'0" | Conditions applyOver 18' high: bucket truck required (possibly lower in utility-dense areas) + district-office/utility coordination; front and rear State Police escorts MAY be required (discretionary, manual p.37). |
| Length | Requirement |
|---|---|
| Over 90'0" | 1 rear escortOver 90' to 125' long: 1 private escort BEHIND the load on ALL highways ('Escort vehicles must travel behind overlength vehicles and loads on all highways', manual p.64). No length-based second-escort tier exists — one escort may even cover two overlength loads moving together. 90' is also the Monthly/Yearly Oversize Permit envelope cap. |
| Over 125'0" | 1 police escortOver 125' long: State Police escort; hauling trailers must be equipped with steerable/trackable dollys (manual p.37). |
| Weight | Requirement |
|---|---|
| Over 232,000 lbs | route survey · superloadOver 232,000 lb on NON-DESIGNATED highways: detailed submission (drawings, axle detail, kingpin locations, CG, route map, proof alternate modes are impossible, owner weight certification) 4–6 weeks in advance; rail/waterway must be used where adequate except first/last-mile (manual pp.19, 47; the Aug-2023 LAC still prints 238,000 — stale, the 2025 manual is what the TPO enforces). 232,001–254,000 lb runs statewide on DOTD-selected, majority-interstate routes; >120k with 12' group spreads: tandem 45k / steering 13k allowed. |
| Over 254,000 lbs | Marking requiredOver 254,000 lb (all highways): 4–6 weeks detailed review; fee = $15 + $0.75 per ton-mile in excess of 80,000 lb PLUS a structural-evaluation fee: $187.50 timber/concrete-slab bridges; $1,275 truss/continuous/movable + all Mississippi River structures; $750 all other (manual p.46). Loads exceeding 900,000 lb may require analysis by an independent engineering firm. LSP on weight moves is discretionary — no codified weight trigger (the old >238k police flag was uncodified). |
Movement restrictions
| Restriction | In Louisiana |
|---|---|
| Night travel | Daylight hours only |
| Weekends | Not specified |
| Holidays | Restricted |
Movement hours (manual 2025 pp.38–39, verified 2026-07-10)
| Load | Window |
|---|---|
| Any oversize dimension (outside the envelope) | sunrise → sunset (NWS), 7 days; 55 mph cap |
| Exemption envelope: no projections · legal W/L · ≤14′4″H · ≤120,000 lb | 24/7 — night AND holidays allowed |
| Holidays (loads outside the envelope) | restricted on TPO-designated days — no codified list; call 800-654-1433 opt 1 |
| >12′ wide — 5 metro interstate clusters | barred weekdays 7–9 a.m. & 3:30–5:30 p.m. (Shreveport, Monroe, Lake Charles, Baton Rouge, New Orleans) |
| Any permit load — NOLA Mississippi River bridges | barred within 2 mi / crossing, weekdays 6:30–9 a.m. & 3:30–6 p.m. |
| Weather | no movement in heavy rain/fog/ice/snow or continuous low visibility; wind stops mobile homes |
| Tunnels | Harvey (US 90B) + Houma (LA 3040): OS/OW prohibited entirely |
Where these permits come from
If you file yourself, this is the office you are dealing with. Check the linked page — some states issue OS/OW permits through their highway patrol or revenue department rather than the DOT.
| Louisiana permit office | |
|---|---|
| Permit office | 800-654-1433 |
| [email protected] | |
| Permit portal | LaGeaux (Safehaul Permit Manager) — lageauxpm.dotd.la.gov; Route Planner, Trouble Board, and the Posted-Bridges map live inside it. ('LaTRUCC' does not exist.) |
| Information | Official page |
RS 32:380/381/382/386/387/387.1 (live legis.la.gov, incl. RS 32:382 retrieved for the first time) + LADOTD 'Regulatio… · legis.la.gov · in effect since 2025-06-20 · source read 2026-07-10. Fees and rules change; the linked document is always the authority.