The New Hampshire answer
Legal limits
First escort trigger
- Width
- 12' or morerev. · read
- Height
- over 14'rev. · read
- Length
- 90' or morerev. · read
- Rear overhang
- 15' or morerev. · read
- Gross weight
- No trigger published
What the paper costs
- Single-trip base
- $6 · caveat ↓rev. · read
- Transaction / card
- None published · caveat ↓rev. · read
- How overweight is priced
- The agency prices it; no published schedulerev. · read
- Superload above
- 149,999 lb and up · caveat ↓rev. · read
The short version: a New Hampshire single-trip permit starts at $6 before bands, overweight and the transaction charge; an escort is first required at 12' or more wide; and the load becomes a superload at over 149,999 lb. Everything below carries the New Hampshire document it came from, that document's own revision date, and the date we read it.
1. Where the load goes next
The jurisdictions this one borders, each chip carrying the fact that decides whether that crossing is the expensive one — so the row is itself a small comparison. A multi-state lane is the actual job, and from here it is one click per state rather than a return to an alphabetical index.
2. New Hampshire legal limits
Anything over one of these needs a permit. Every value links to the document that sets it.
| Measure | Legal limit |
|---|---|
| Width | 8'6"rev. · read RSA 266:12: "The driving on ways of this state of any vehicle whose width including load exceeds the limitations of this section is hereby prohibited: I. A vehicle in excess of 102 inches in width." EXCLUSIVE — "in excess of". The same section's only other dimensional provision, RSA 266:12, II, is about a passenger-type vehicle whose load "extends over the sides of the vehicle beyond the line of the fenders on the left side or extends more than 6 inches beyond the line of the fenders on the right side" — not a freight overhang limit. |
| Height | 13'6"rev. · read RSA 266:10, I: "No vehicle, except a vehicle transporting manufactured housing or modular buildings, whose total height including load is greater than 13 feet, 6 inches, shall be driven on the ways of this state." EXCLUSIVE. MANUFACTURED HOUSING AND MODULAR BUILDINGS GET 14 FT 6 IN — RSA 266:10, II: "No manufactured housing or modular building whose total height is greater than 14 feet, 6 inches, shall be transported on the ways of this state" — and the same paragraph requires a non-police escort for such a transport over 13 ft 6 in. The 14 ft 6 in figure is NOT encoded as a second conditioned row: the schema's only commodity flag is `transportingBuilding`, whose published definition (Iowa's) expressly EXCLUDES "mobile homes and factory-built structures", so it is the wrong flag and a conditioned row built on it would be a silent mis-statement. BEWARE THE INTERACTION WITH THE SUPERMOVE RULE: because Tra 304.12(c)(2) makes a load over 13 ft 6 in a supermove, EVERY overheight load in New Hampshire is a supermove. |
| Semitrailer length | 53'rev. · read RSA 266:11, II: "For a semi-trailer in a truck-tractor, semi-trailer combination, 53 feet, except that any semi-trailer in excess of 48 feet shall not be operated if: (a) The distance between the kingpin and the centerline of the rear axle or the midpoint of a tandem axle of the semi-trailer exceeds 41 feet". EXCLUSIVE. The 53 ft allowance is therefore CONDITIONAL on the kingpin setting, which is why the 41 ft figure is recorded separately in `kingpinToRearAxleIn` rather than folded in here. The section also caps a single unit vehicle or bus at "45 feet including front and rear bumpers" (RSA 266:11, I) and each trailing unit of a 2-trailing-unit combination at 28 feet (III). |
| Overall length | None published |
| Kingpin to rear axle | 41'rev. · read RSA 266:11, II(a): a semi-trailer "in excess of 48 feet shall not be operated if: (a) The distance between the kingpin and the centerline of the rear axle or the midpoint of a tandem axle of the semi-trailer EXCEEDS 41 FEET". EXCLUSIVE. New Hampshire shares this figure with Rhode Island and Vermont; Massachusetts, unusually among the five, publishes none. |
| Front overhang | None published |
| Rear overhang | None published |
| Gross weight | Not yet covered |
| Single axle | 22,400 lbundated document · read RSA 266:18, I(c)(1) and RSA 266:18-a, I(c)(1), in identical words: "22,400 pounds per axle on 3-axle single unit vehicles and on all other vehicles with axles 10 feet or more apart, including combination vehicles." THIS IS THE FIGURE FOR A GROSS NOT IN EXCESS OF 73,280 lb, AND IT IS THE PERMISSIVE ONE. The same subsections drop it for closer axles and heavier loads: 18,000 lb per axle "on axles of vehicles less than 10 feet apart, except 3-axle single unit vehicles"; and above 73,280 lb on the interstate, 20,000 lb per axle on axles more than 8 ft apart and 17,000 lb on axles not more than 8 ft apart. NEITHER CONDITION CAN BE EXPRESSED: `ContextCondition` has no gross-weight axis and no axle-spacing axis, so the 73,280 lb hinge and the 10 ft / 8 ft spacing tests are recorded here and not evaluated. That is safe only because `grossWeightLbs` is empty and every New Hampshire weight question therefore goes to manual review anyway — this figure can never silently clear a heavy load. RSA 266:18-a also defines "two axles less than 40 inches apart shall be considered as a single axle unit", and RSA 266:18-a allows a 5 percent enforcement tolerance off the interstate which the interstate schedule does not. |
| Tandem axle | Not yet covered |
3. The New Hampshire escort ladder
Not one number per dimension — the whole staircase. Each row is a condition the state actually publishes, what it requires when that condition holds, and the clause it comes from. Where a rule requires escorts and the source states no number, the row says that in the source's own words rather than reporting no requirement.
| When | What is required | Source |
|---|---|---|
| width from 12' to 14' (exclusive) | 1 certified escortAdvisory: Tra 304.17(i): "The permit office shall determine the number of non-police and state police escort vehicles required to safely effect the required traffic control of any move ... If the permit office determines that the number of escort vehicle(s) required under (c)-(g) above is inadequate for these purposes, the permit office shall require sufficient additional non-police or state police, or both, escort vehicle(s) to safely accomplish the move." The counts quoted here are the published floor, not a ceiling; the permit office may add to them on the day, and Tra 304.17(g) caps only the NON-POLICE escorts at two. |
PRIMARY. Tra 304.12 and Tra 304.18 both carry…rev. · read |
| rear overhang of 15' or more and width of 12' or more | 2 certified escorts |
PRIMARY. Tra 304.12 and Tra 304.18 both carry…rev. · read |
| height over 14' | 1 certified escort |
PRIMARY. Tra 304.12 and Tra 304.18 both carry…rev. · read |
| Does this movement require closure of a highway, or of a portion of a highway, in New Hampshire? | The count is settled; the source does not say front or rear. Published as: “Tra 304.17(h): "If the movement requires highway closure or closure of a portion of a highway, 3 state police escorts shall be required, provided that any state police escorts already required under (e)-(f) above shall be included in counting the 3 state police escorts required under this subparagraph (h)."”Cannot be reduced to a number: THREE New Hampshire State Police escort vehicles are required where the movement needs a highway closure, and the 3 is a TOTAL that absorbs any trooper already required under Tra 304.17(e) or (f). Tra 304 publishes no rate, but the Division of State Police do — $113.00 per hour per trooper on a four-hour minimum — so three troopers floor at $1,356.00. The closure itself is arranged with the permit office rather than quoted, and this rule stays subjective because no dimension decides whether a closure is needed. |
PRIMARY. Tra 304.12 and Tra 304.18 both carry…rev. · read |
| width over 14' | The count is settled; the source does not say front or rear. Published as: “Tra 304.17(f): "If the overall width exceeds 14 feet 0 inches, a total of 2 state police escorts shall be required, including any state police escorts already required under (e) above." Tra 304.17(g): "No more than 2 non-police escorts shall be required under (c) and (d) above, but any state police escort(s) required under (e) or (f) above shall be in addition to any required non-police escort(s)."”Cannot be reduced to a number: TWO New Hampshire State Police escort vehicles are required above 14 ft 0 in of width (EXCLUSIVE) — and it is a TOTAL, not an addition: Tra 304.17(f) says "including any state police escorts already required under (e)", so a load 105 ft long and 15 ft wide needs TWO troopers and not three. They are in addition to the non-police escorts, which Tra 304.17(g) caps at two. NO RATE IS PUBLISHED anywhere in Tra 304 or RSA 266:22 and Tra 304.18(b) closes the PERMIT fee list, but the Division of State Police publish the detail rate — $113.00 per hour on a four-hour minimum — so both troopers are priced at $452.00 each, $904.00 together. THE ENGINE CANNOT SEE THE TWO. `EscortOutcome` has no position-free police count and Tra 304.17(f) states a count without a position, so this rule carries the 2 in prose and the lane floor is computed for ONE officer; the shortfall is named in the rate row’s unpriced components rather than guessed at. Note that above 15 ft 0 in of width the move is also a SUPERMOVE under Tra 304.12(c)(1) and the permit office will not issue an ordinary single-trip permit for it. |
PRIMARY. Tra 304.12 and Tra 304.18 both carry…rev. · read |
| front overhang of 15' or more or rear overhang of 15' or more | 1 certified escort |
PRIMARY. Tra 304.12 and Tra 304.18 both carry…rev. · read |
| overall length of 90' or more | 1 certified escort |
PRIMARY. Tra 304.12 and Tra 304.18 both carry…rev. · read |
| overall length of 100' or more and not (Have the New Hampshire State Police determined that weather conditions, visibility, traffic flow or other conditions do not compromise safe movement, so that the Tra 304.17(e) state police escort is not required?) | The count is settled; the source does not say front or rear. Published as: “Tra 304.17(e): "If the vehicle and load are 100 feet 0 inches or more in length, one state police escort vehicle, in addition to any non-police escort vehicle required under (c) or (d) above, shall be required, unless the state police determine that weather conditions, visibility, traffic flow, or other conditions do not compromise safe movement."”Cannot be reduced to a number: ONE New Hampshire State Police escort vehicle is required at 100 ft 0 in or more of overall length (INCLUSIVE), in addition to any non-police escort — and it is WAIVABLE by the State Police on the day. Tra 304.17(e) states the COUNT and not the POSITION, so no front/rear figure is quoted. NHDOT PUBLISHES NO RATE AND THE STATE POLICE DO: neither Tra 304 nor RSA 266:22 contains a state police escort charge, and Tra 304.18(b) forecloses any charge outside RSA 266:22 — but that closes the list of PERMIT fees, not the trooper’s bill, and the Division of State Police price the detail themselves at "a four (4) hour minimum with thirty (30) minute increments thereafter at $113.00 per hour", with oversize-load escorts named on the same page as one of the services. So the computable FLOOR for this one trooper is 4 x $113.00 = $452.00, `escortCost.ts` carries it as a cited figure, and it stays outside the permit total. |
PRIMARY. Tra 304.12 and Tra 304.18 both carry…rev. · read |
The first trigger in each dimension
| Measurement | First escort trigger | First police escort trigger |
|---|---|---|
| Width | 12' or morerev. · read | None published |
| Height | over 14'rev. · read | None published |
| Length | 90' or morerev. · read | None published |
| Rear overhang | 15' or morerev. · read | None published |
| Gross weight | None published | None published |
The same rules restated in plain sentences9 rules
- Overall width 12 ft 0 in or more and less than 14 ft 0 in — one non-police escort vehicle — PRIMARY. Tra 304.12 and Tra 304.18 both carry "Source. #10816, eff 4-23-15" (Tra 304.12's full note: "#5621, eff 5-4-93; ss by #6992, INTERIM, eff 5-5-99, EXPIRED: 9-2-99 / New. #7193, eff 1-26-00, EXPIRED: 1-26-08 / New. #10816, eff 4-23-15"). Source of the escort ladder, the supermove thresholds, the single-trip permit envelope, the route-survey triggers and the affirmative closure of the fee list at Tra 304.18(b). Tra 304.13(g), the manufactured-housing escort schedule, was NOT retrieved; nor was the third route-survey trigger at Tra 304.07(g)(3). rev. · read
- Overall length 90 ft 0 in or more — one non-police escort vehicle — PRIMARY. Tra 304.12 and Tra 304.18 both carry "Source. #10816, eff 4-23-15" (Tra 304.12's full note: "#5621, eff 5-4-93; ss by #6992, INTERIM, eff 5-5-99, EXPIRED: 9-2-99 / New. #7193, eff 1-26-00, EXPIRED: 1-26-08 / New. #10816, eff 4-23-15"). Source of the escort ladder, the supermove thresholds, the single-trip permit envelope, the route-survey triggers and the affirmative closure of the fee list at Tra 304.18(b). Tra 304.13(g), the manufactured-housing escort schedule, was NOT retrieved; nor was the third route-survey trigger at Tra 304.07(g)(3). rev. · read
- Overall height greater than 14 ft 0 in — one non-police escort vehicle — PRIMARY. Tra 304.12 and Tra 304.18 both carry "Source. #10816, eff 4-23-15" (Tra 304.12's full note: "#5621, eff 5-4-93; ss by #6992, INTERIM, eff 5-5-99, EXPIRED: 9-2-99 / New. #7193, eff 1-26-00, EXPIRED: 1-26-08 / New. #10816, eff 4-23-15"). Source of the escort ladder, the supermove thresholds, the single-trip permit envelope, the route-survey triggers and the affirmative closure of the fee list at Tra 304.18(b). Tra 304.13(g), the manufactured-housing escort schedule, was NOT retrieved; nor was the third route-survey trigger at Tra 304.07(g)(3). rev. · read
- Front or rear overhang 15 ft 0 in or more — one non-police escort vehicle — PRIMARY. Tra 304.12 and Tra 304.18 both carry "Source. #10816, eff 4-23-15" (Tra 304.12's full note: "#5621, eff 5-4-93; ss by #6992, INTERIM, eff 5-5-99, EXPIRED: 9-2-99 / New. #7193, eff 1-26-00, EXPIRED: 1-26-08 / New. #10816, eff 4-23-15"). Source of the escort ladder, the supermove thresholds, the single-trip permit envelope, the route-survey triggers and the affirmative closure of the fee list at Tra 304.18(b). Tra 304.13(g), the manufactured-housing escort schedule, was NOT retrieved; nor was the third route-survey trigger at Tra 304.07(g)(3). rev. · read
- Rear overhang 15 ft 0 in or more AND width 12 ft 0 in or more — a second non-police escort vehicle (two in total) — PRIMARY. Tra 304.12 and Tra 304.18 both carry "Source. #10816, eff 4-23-15" (Tra 304.12's full note: "#5621, eff 5-4-93; ss by #6992, INTERIM, eff 5-5-99, EXPIRED: 9-2-99 / New. #7193, eff 1-26-00, EXPIRED: 1-26-08 / New. #10816, eff 4-23-15"). Source of the escort ladder, the supermove thresholds, the single-trip permit envelope, the route-survey triggers and the affirmative closure of the fee list at Tra 304.18(b). Tra 304.13(g), the manufactured-housing escort schedule, was NOT retrieved; nor was the third route-survey trigger at Tra 304.07(g)(3). rev. · read
- Overall length 100 ft 0 in or more — one state police escort vehicle in addition to any non-police escort, unless the State Police waive it — PRIMARY. Tra 304.12 and Tra 304.18 both carry "Source. #10816, eff 4-23-15" (Tra 304.12's full note: "#5621, eff 5-4-93; ss by #6992, INTERIM, eff 5-5-99, EXPIRED: 9-2-99 / New. #7193, eff 1-26-00, EXPIRED: 1-26-08 / New. #10816, eff 4-23-15"). Source of the escort ladder, the supermove thresholds, the single-trip permit envelope, the route-survey triggers and the affirmative closure of the fee list at Tra 304.18(b). Tra 304.13(g), the manufactured-housing escort schedule, was NOT retrieved; nor was the third route-survey trigger at Tra 304.07(g)(3). rev. · read
- Overall width greater than 14 ft 0 in — a TOTAL of 2 state police escorts, including any already required for length — PRIMARY. Tra 304.12 and Tra 304.18 both carry "Source. #10816, eff 4-23-15" (Tra 304.12's full note: "#5621, eff 5-4-93; ss by #6992, INTERIM, eff 5-5-99, EXPIRED: 9-2-99 / New. #7193, eff 1-26-00, EXPIRED: 1-26-08 / New. #10816, eff 4-23-15"). Source of the escort ladder, the supermove thresholds, the single-trip permit envelope, the route-survey triggers and the affirmative closure of the fee list at Tra 304.18(b). Tra 304.13(g), the manufactured-housing escort schedule, was NOT retrieved; nor was the third route-survey trigger at Tra 304.07(g)(3). rev. · read
- Movement requires closure of a highway or part of one — a TOTAL of 3 state police escorts — PRIMARY. Tra 304.12 and Tra 304.18 both carry "Source. #10816, eff 4-23-15" (Tra 304.12's full note: "#5621, eff 5-4-93; ss by #6992, INTERIM, eff 5-5-99, EXPIRED: 9-2-99 / New. #7193, eff 1-26-00, EXPIRED: 1-26-08 / New. #10816, eff 4-23-15"). Source of the escort ladder, the supermove thresholds, the single-trip permit envelope, the route-survey triggers and the affirmative closure of the fee list at Tra 304.18(b). Tra 304.13(g), the manufactured-housing escort schedule, was NOT retrieved; nor was the third route-survey trigger at Tra 304.07(g)(3). rev. · read
- Gross weight above 33,400 lb — New Hampshire's overweight permit fee is banded on absolute gross weight but owed only above the vehicle's REGISTERED weight, which no weight band can express — PRIMARY. Source note: "1949, 285:1. RSA 263:64. 1971, 345:1. 1972, 55:2. 1979, 220:1. 1981, 146:1. 2006, 231:1, eff. July 1, 2006. 2023, 79:99, eff. July 1, 2023." READ IN FULL, all six paragraphs: the $6 dimensional fee (I), the over-registered-weight ladder (II), the $60 100-mile-radius permit (III), the $115 annual permit (IV), the farm-equipment exemption (V) and the revolving-fund provision (VI). Nothing else in it is a charge. rev. · read
4. New Hampshire single-trip permit fees
| Charge | Amount |
|---|---|
| Single-trip base | $6rev. · read RSA 266:22: "Before any special permit authorized by RSA 266:24 is issued, the commissioner of transportation shall collect fees as follows: I. Each permit for either over-length, over-width or over-height OR ANY COMBINATION THEREOF, $6". THE CHEAPEST OVERSIZE PERMIT IN THIS CORPUS, and dimension-blind: a 9 ft load and a 17 ft load pay the same $6, and a load over-width AND over-height AND over-length pays $6 once rather than three times — which is what "or any combination thereof" does in the sentence, and why `oversizeFeeBands` is absent. THE OTHER PRODUCTS IN THE SECTION ARE NOT SINGLE-TRIP ALTERNATIVES AND ARE NOT APPLIED: "III. Provided a special permit may be issued to a person to cover all types of moves made within a radius of 100 miles from the person's home location for a fee of $60 for each unit"; "IV. Provided further that a special annual permit may be issued to a person to cover all types of moves for a fee of $115 for each unit. Each permit issued under the provisions of this paragraph shall be issued for one year". The $60 is a FLAT SCOPE FEE for a radius product — not a mileage rate and not $60 per mile. Paragraph VI establishes a revolving fund and charges nothing. |
| Transaction / card | None publishedrev. · read AN AFFIRMATIVE ABSENCE STATED BY THE RULE ITSELF. Tra 304.18(b): "ALL PERMIT FEES SHALL BE COMPUTED IN ACCORDANCE WITH RSA 266:22 and paid prior to issuance of a permit." That sentence forecloses any charge outside RSA 266:22, and RSA 266:22 contains exactly two charges — the $6 dimensional fee and the weight ladder. There is no processing fee, no issuance fee, no service charge, no percentage and no online convenience fee, even though Tra 304.18(e) requires card payment for the electronic permitting system: "Permit fees shall be paid by credit card or debit card when the applicant uses the electronic permitting system for an online application." Tra 304.18(f) adds that "all permit fees shall be nonrefundable". NEW HAMPSHIRE IS ONE OF THE FEW STATES IN THIS CORPUS THAT STATES THE COMPLETENESS OF ITS OWN FEE SCHEDULE, which is stronger evidence than our failing to find another charge. |
| Route analysis review | $0rev. · read Tra 304.18(b): "All permit fees shall be computed in accordance with RSA 266:22." RSA 266:22 contains no route-analysis, bridge-analysis or engineering-review charge, so the STATE's fee for reviewing an engineer's analysis is zero. THE WORK IS STILL PAID FOR, BY THE APPLICANT, AND ITS COST IS NOT PUBLISHED: Tra 304.12(e) requires, "at the applicant's own expense", "a written report of an engineering inspection, performed by a professional engineer licensed in New Hampshire" plus "a confirmation from the applicable turnpike/highway district engineer, the bureau of bridge design or designees"; Tra 304.07(f) imposes the same at a lower threshold for ordinary permits, and Tra 304.07(g) requires "a physical route survey identifying the minimum clearances along the proposed route" where the height is greater than 13 ft 6 in or the length is greater than 110 ft. COULD NOT VERIFY any of those private amounts. |
| Route with no bridges | $0rev. · read The same sourced zero as `routeAnalysisFeeUsd`, and for the same sentence: Tra 304.18(b) computes every permit fee under RSA 266:22, which publishes no structure-review charge of any kind. New Hampshire draws no distinction between a route that crosses bridges and one that does not, because neither carries a state fee. |
New Hampshire has more than one permit issuer. A state total can be complete and still be missing a whole permit.
- New Hampshire municipalities — selectmen of towns and city councils — A move that uses town or city ways or bridges may need that municipality's own authority as well as the NHDOT permit. RSA 266:24, I expressly preserves the power: "This section shall not be construed to limit the powers of the commissioner of transportation, selectmen of towns and city council of cities to make rules for the protection and to prevent the abuse of ways and bridges as provided by RSA 236:1, RSA 47:17 and RSA 41:11.". We do not hold this authority's fee schedule, so the leg goes to review rather than being quoted short. N.H. RSA 266:22 — Permit Fees
5. How New Hampshire prices overweight
The agency prices it; no published schedule. RSA 266:22, II: "Each permit for vehicle and load over-weight, fee based on the following schedule: vehicle and load OVER REGISTERED WEIGHT but not exceeding 50,000 pounds, $5.50; 50,001 pounds to 60,000 pounds, $6.50; 60,001 pounds to 70,000 pounds, $7.50; 70,001 pounds to 80,000 pounds, $8.50; 80,001 pounds to 90,000 pounds, $9.50; 90,001 pounds to 100,000 pounds, $10.50; and for each additional 10,000 pounds $2 shall be added to the above rate." THE BANDS ARE ABSOLUTE GROSS FIGURES — not excess over a legal limit, which is the OPPOSITE of Maine's model and must never be cross-applied — and the permit is owed only where the gross exceeds THE VEHICLE'S REGISTERED WEIGHT. That base is a fact about the truck's registration, not about the load: two identical 95,000 lb loads owe $10.50 and nothing at all according to whether the unit is registered for 80,000 lb or for 100,000 lb. A `WeightBand` floor is a constant, and `ContextCondition`'s `registeredGrossWeight` leaf compares the registered weight to a constant rather than to the load's gross, so neither can express "over registered weight". The figures are complete and a human can price the permit from this sentence; the ENGINE cannot decide whether it is owed. Note also that the step changes size at 100,000 lb — $1.00 per 10,000 lb below it, $2.00 per 10,000 lb above — and that the extrapolation is unbounded with no stated maximum.
There is no weight schedule to print, and under this model there is not supposed to be one.
6. New Hampshire seasonal posting windows
A permit priced against an unposted-road assumption in March is simply wrong, and wrong in the expensive direction. This is the window we watch, the basis for that window in the state's own orders or statute, and the authority that posts it.
New Hampshire is not in the seasonal-restriction registry, so we hold no posting window for it and are not inventing one.
7. New Hampshire's superload threshold
Above one of these, the state stops issuing over the counter and prices the move after an engineering review.
| Trigger | Threshold |
|---|---|
| Gross weight | over 149,999 lbrev. · read Tra 304.12(c)(3): "The weight exceeds 149,999 pounds." ENCODED EXACTLY AS WRITTEN AND DELIBERATELY NOT "CORRECTED" TO 150,000. "Over 149,999 lb" and "150,000 lb or more" describe the same set of WHOLE pounds and differ at 149,999.5 lb, which is precisely the distinction `Threshold.inclusive` exists to preserve — so this is `{ value: 149_999, inclusive: false }` and not `{ value: 150_000, inclusive: true }`. Vermont, by contrast, writes its engineering-inspection trigger as "One hundred fifty thousand (150,000) pounds or more", which IS inclusive at 150,000; the two states are a clean illustration of why the flag is stored. |
| Width | over 15'rev. · read Tra 304.12(c)(1): "The vehicle and load exceeds 15 feet 0 inches in width or exceeds 110 feet 0 inches in length, or both." EXCLUSIVE. Contrast Vermont, whose equivalent width trigger is "Fifteen feet (15') or more" and therefore inclusive at 15 ft. |
| Height | over 13'6"rev. · read Tra 304.12(c)(2): "The load exceeds a height of 13 feet 6 inches." EXCLUSIVE — AND THIS IS THE TRIGGER MOST EASILY MISSED, because it sits at exactly the LEGAL height. Any load that needs an over-height permit in New Hampshire is therefore also a SUPERMOVE, which is a far lower bar than the 15 ft of width or 110 ft of length in (c)(1) and the 149,999 lb in (c)(3). |
| Length | over 110'rev. · read Tra 304.12(c)(1): "exceeds 110 feet 0 inches in length". EXCLUSIVE. Note New Hampshire publishes no LEGAL overall combination length at all, so 110 ft is a permit/supermove threshold rather than a limit on lawful operation. |
| Short axle spacing | Not yet covered |
8. Route survey and bridge review
The dimensions at which New Hampshire triggers a physical route inspection or an engineering review, and what the agency charges to review it.
| Measurement | Inspection / review trigger |
|---|---|
| Width | Not yet covered |
| Height | over 13'6"rev. · read Tra 304.07(g): "The permit office shall require the applicant to provide, at the applicant's expense, a physical route survey identifying the minimum clearances along the proposed route, taking into consideration all physical obstructions, if: (1) The height of the vehicle, object, or vehicle and load is greater than 13 feet 6 inches". EXCLUSIVE. Tra 304.07(f) separately requires an engineer's structural report, "except as otherwise provided in Tra 304.12(c) for a supermove", "based on safety considerations, including the particular route ... unless the permit office has on file current engineering information applicable to the proposed route". |
| Length | over 110'rev. · read Tra 304.07(g)(2): "The length of the vehicle, object, or vehicle and load is greater than 110 feet." EXCLUSIVE. A THIRD TRIGGER EXISTS AT Tra 304.07(g)(3) AND WAS NOT CAPTURED — see `routeInspection.widthIn`, which is empty for that reason. |
9. Police escorts
New Hampshire State Police publishes a rate. One officer costs at least $452 before mileage.
What the schedule does not price4 items
- THE OFFICER COUNT IS PUBLISHED AND THE FLOOR BELOW IS FOR ONE. Tra 304.17(f): "If the overall width exceeds 14 feet 0 inches, a total of 2 state police escorts shall be required." Tra 304.17(h): "If the movement requires highway closure or closure of a portion of a highway, 3 state police escorts shall be required." The counts carry no position, so no front/rear figure reaches this engine and the floor must be multiplied by the count Tra 304.17 gives for the actual load — $904.00 for two troopers, $1,356.00 for three.
- Hours beyond the four-hour minimum are billed in thirty-minute increments at the same $113.00, and the hours actually worked are set on the day.
- Late cancellation: "Details cancellations must be made by the contractor at least twelve (12) hours in advance of the scheduled start time. If the contractor does not meet this requirement, the contractor shall be responsible for a 4-hour minimum payment per trooper requested." — $452.00 per trooper for cancelling inside twelve hours.
- The 100 ft length trooper is WAIVABLE on the day: Tra 304.17(e) requires it "unless the state police determine that weather conditions, visibility, traffic flow, or other conditions do not compromise safe movement". A waived trooper costs nothing, so the floor can also turn out to be zero on that one trigger — which is a reason it is reported rather than added to the permit total.
10. When you can move it
Holiday, curfew and night-travel windows are not yet encoded for New Hampshire. The seasonal picture — which is a different question — is in section 6 above.
Why those windows are absent rather than estimated
They are not guessed at here. What we do publish is the seasonal weight-restriction picture, with the date we last read each state's own bulletin — a curfew invented from a plausible pattern is worth less than an honest gap, because a reader cannot tell the two apart on the page.
11. Permit office
The agency behind each figure above is linked from that figure. We publish no per-state permit-office phone number.
Why there is no phone number here
We are not publishing per-state permit-office phone numbers yet, and the reason is worth stating: the two seed lists available for them are both demonstrably stale — the federal one gives two different states the same phone number — and a wrong number on a page like this costs somebody a morning. The agency behind each figure above is linked from that figure, which is the part we can stand behind today.
12. What this does not include
Named rather than gestured at, because each of these can exceed the permit itself. Every item is listed; open one for why it is excluded.
Line haul, fuel and driver time
This is a permit fee, not a freight rate.
Civilian pilot car rates
We hold no rate data, and the two commercial sites that publish market rates disagree by nearly a factor of two on the same service.
Route-survey engineering
The agency's review fee is shown where the state publishes one; the engineer's own fee is a private cost with no schedule.
Bonds and escrow
Set per move by the agency, and in at least one state the escort is billed at actual cost against it.
Utility coordination and line lifts
Arranged with each utility, priced by each utility.
Second-issuer permits
A toll, bridge or city authority inside the same state issues its own permit, and a state total that omits it is missing a whole permit.
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13. Every source behind this page (6)
Every document behind New Hampshire6 sources
- N.H. Code Admin. R. Tra 304 — Permits (Tra 304.03, 304.07, 304.12, 304.17 "Escort Vehicles", 304.18 "Fees") — State of New Hampshire Department of Transportation (agency rules, via the General Court rules host) — PRIMARY. Tra 304.12 and Tra 304.18 both carry "Source. #10816, eff 4-23-15" (Tra 304.12's full note: "#5621, eff 5-4-93; ss by #6992, INTERIM, eff 5-5-99, EXPIRED: 9-2-99 / New. #7193, eff 1-26-00, EXPIRED: 1-26-08 / New. #10816, eff 4-23-15"). Source of the escort ladder, the supermove thresholds, the single-trip permit envelope, the route-survey triggers and the affirmative closure of the fee list at Tra 304.18(b). Tra 304.13(g), the manufactured-housing escort schedule, was NOT retrieved; nor was the third route-survey trigger at Tra 304.07(g)(3).
rev. · read - N.H. RSA 266:10 — Height — State of New Hampshire, General Court — PRIMARY, the state's own statute host. Source note: "1949, 85:1. RSA 263:66. 1981, 146:1. 2004, 182:1, eff. July 31, 2004." Source of the 13 ft 6 in height, the 14 ft 6 in manufactured-housing allowance and the statutory non-police escort for manufactured housing over 13 ft 6 in.
rev. · read - N.H. RSA 266:11 — Length — State of New Hampshire, General Court — PRIMARY. Source note ends "2004, 182:2, eff. July 31, 2004." Read in full: source of the 53 ft semitrailer, the 41 ft kingpin-to-rear-axle distance, the 45 ft single unit, the 28 ft trailing units and the 110 ft manufactured-housing transport — and of the AFFIRMATIVE ABSENCE of any overall combination length cap.
rev. · read - N.H. RSA 266:12 — Width — State of New Hampshire, General Court — PRIMARY. Source note ends "1989, 48:1, eff. June 18, 1989." Source of the 102 in width. Read in full; publishes no overhang limit for freight — its only overhang provision, RSA 266:12, II, is about a passenger-type vehicle's load extending past the fender line.
rev. · read - N.H. RSA 266:18 (Weight on Interstate and Defense Highway System) and RSA 266:18-a (Weight on Non-Interstate and General Highway System) — State of New Hampshire, General Court — PRIMARY. Two parallel schedules hinged on 73,280 lb. RSA 266:18-a is at https://gc.nh.gov/rsa/html/XXI/266/266-18-a.htm and the chapter index at https://gc.nh.gov/rsa/html/XXI/266/266-mrg.htm. The research did NOT capture these sections' own "Source." lines, so this document states no date here. The combination weight tables (Tables II/III and the subparagraph (h) formula) were NOT transcribed; RSA 266:18-b and RSA 266:18-d were NOT read at all.
undated document · read - N.H. RSA 266:22 — Permit Fees — State of New Hampshire, General Court — PRIMARY. Source note: "1949, 285:1. RSA 263:64. 1971, 345:1. 1972, 55:2. 1979, 220:1. 1981, 146:1. 2006, 231:1, eff. July 1, 2006. 2023, 79:99, eff. July 1, 2023." READ IN FULL, all six paragraphs: the $6 dimensional fee (I), the over-registered-weight ladder (II), the $60 100-mile-radius permit (III), the $115 annual permit (IV), the farm-equipment exemption (V) and the revolving-fund provision (VI). Nothing else in it is a charge.
rev. · read
Questions
How much is an oversize permit in New Hampshire?
The single-trip base is $6, before the dimension bands, the overweight component and the transaction charge. The base alone is rarely what is paid.
When does New Hampshire require a pilot car?
The first width trigger is 12' or more.
What is a superload in New Hampshire?
New Hampshire's published gross-weight superload line is over 149,999 lb. It is not 80,000 lb; that is the federal legal gross limit, not a superload threshold.