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Louisiana Oversize Permits

Legal size/weight limits, escort thresholds, travel restrictions, and permit office contact for Louisiana.

Legal Maximum Dimensions (no permit required)

Width
8.5ft (102in)
Height
13.5ft (162in) — limit varies by route
Max semitrailer length
59.5ft
Gross Weight
80,000 lbs
Single Axle
20,000 lbs
Tandem Axle
34,000 lbs

La. R.S. 32:381: the height of any vehicle and its load shall not exceed 13 ft 6 in (162 in) — EXCEPT that a vehicle and load operating EXCLUSIVELY on the Interstate highway system may reach 14 ft (168 in). The figure shown is the limit that holds on all other Louisiana highways; the 14 ft allowance applies only if the entire move stays on the Interstate system. (§32:382 is length, not height.)

Official source for this height limit →

La. R.S. 32:382 sets 59 ft 6 in for the semitrailer — an OUTLIER above the 53 ft norm. No statutory overall limit for a tractor-semitrailer. The 65 ft (+1 ft tolerance) applies only to FOREST-PRODUCTS combinations and must not be published as the general limit.

Official source for these length limits →

Escort / Pilot Car Thresholds (see glossary for terms, certification requirements for the driver)

These escort figures are route-dependent — they can change with road classification, lane width, two-lane vs multilane, and time of day. Confirm with the permit office before dispatching.

Front escort required over
12ft wide
Rear escort required over
12ft wide
Both escorts required over
18ft wide
Height escort required over
15.8ft tall

Private (certified) escort required for loads over 12'0" (144 in) up to 16'0" wide, and for loads over 90' up to 125' long; on 2-lane highways the escort runs front, on multi-lane it runs rear. Over 16' wide requires a State Police escort; over 18' (216 in) wide requires BOTH front AND rear State Police escorts. Over 125' long requires a State Police escort (steerable/trackable dollies required). A pole truck/car (height-indicator escort) runs in front for loads over 15'10" (190 in) high on state-maintained highways (exempt if traveling only on Interstate); a line-lifting pole truck is required over 16'8" (200 in); bucket trucks required for all loads over 18' high. Not tied to gross weight.

Travel Restrictions

Night travel
Generally restricted
Weekend travel
Generally allowed
Sunday travel
Generally allowed

Permit loads generally travel sunrise to sunset only; night travel is prohibited for true oversize loads. Exception: loads that are non-projecting, legal width and length, height 14'4" or less, and GVW not over 120,000 lbs are typically not restricted at night. Saturday/Sunday daylight travel permitted. Rush-hour metro curfews for loads over 12' wide on the Interstate 7:00-9:00 AM and 3:30-5:30 PM in parts of Shreveport, Monroe, Lake Charles, Baton Rouge, and New Orleans. In New Orleans, permit vehicles may not be within 2 miles of any Mississippi River bridge 6:30-9:00 AM and 3:30-6:00 PM Mon-Fri. Prohibited in severe weather; OSOW loads banned from LA's two tunnels (Harvey US 90 Business, Houma LA 3040).

Holiday blackouts: The DOTD regulations state permit loads are prohibited on 'certain designated holidays' but do not enumerate a specific holiday list in the published rules; no official holiday list is verifiable from the 2025 regulations document.

See how Louisiana compares to every state ›

Superload Thresholds

Width over
18ft
Length over
150ft
Weight over
232,000 lbs

Louisiana does not publish a single crisp dimensional 'superload' number. Its 'Super Loads' guidelines apply to overweight configurations requiring engineered drawings, certified weights, and route/structural review. Gross combination weight over 232,000 lbs on non-designated highways (or over 254,000 lbs on all highways) requires detailed submission 4-6 weeks in advance; loads over 254,000 lbs travel only on DOTD-selected routes; loads over 900,000 lbs may require independent engineering analysis. District approval required over 18' wide, pre-approved route over 16'5" high, utility coordination over 18' high.

Estimated Permit Cost Verify before relying

Oversize-only trip permit: $10/day flat. Overweight fee matrix could not be located as an official standalone document.

Source: Louisiana DOTD — verify current fee with the permit office before budgeting a move.

Permit fee only — does not include escort/pilot-car service costs (market-rate, arranged separately) or third-party permit-service fees. This is an estimate for planning purposes, not a quote.

Get a Permit

Online portal
https://www.dotd.la.gov/lageaux.aspx
Phone
800-654-1433

LaGeaux Permit Manager (official portal). Route Planner: lageauxrp.dotd.la.gov. Trouble Board for bridge/road closures on same domain. Max single-trip GVW 254,000 lbs (RS 32:387). State Police escort required >16ft wide.

Planning a move through Louisiana?

Enter your load's exact size to see whether it needs a permit or escort here, plan a truck-legal route, or find a transporter or escort.

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