Military

APPENDIX E

THE AMERICAN TRUCKING ASSOCIATIONS, INC
SUMMARY OF SIZE AND WEIGHT LIMITS

 

This appendix contains material summarized from the Motor Carrier Advisory Service, published by the American Trucking Associations, Inc. For expanded current information including size and weight exceptions, fees, reciprocity and other state regulations governing truck operations, users should refer to the MCAS, which is available as a subscription service. For more about this service, call 1-800-ATA-LINE (Catalog #L0040).

 

Tables and information in this appendix were reproduced with permission of the American Trucking Associations, Inc., Alexandria, Virginia.

 

SUMMARY OF U.S. SIZE & WEIGHT LIMITS

 

SUMMARY OF U.S. SIZE & WEIGHT LIMITS (continued)

 

SUMMARY OF U.S. SIZE & WEIGHT LIMITS (continued)

 

SUMMARY OF U.S. SIZE & WEIGHT LIMITS (continued)

 

SUMMARY OF U.S. SIZE & WEIGHT LIMITS (continued)

 

SUMMARY OF U.S. SIZE & WEIGHT LIMITS (continued)

 

SUMMARY OF U.S. SIZE & WEIGHT LIMITS (continued)

 

DETAILED STATE ACCESS PROVISIONS
© American Trucking Associations, Inc. January 1996

The Surface Transportation Assistance Act requires states to provide reasonable access by 48-foot, 102-inch vehicles to and from the Interstate and National Network highways. Access provisions listed below are currently in effect for states not allowing access on all state roads and highways. States will provide a map and/or listing showing the permissible routes.

USDOT rules stipulate that all STAA vehicles must be allowed up to 1 mile access to terminals and to food, fuel, repairs, and rest, effective June 1, 1991. Beyond 1 mile, a carrier may request approval of a route to points of loading and unloading, to which the state must respond within 90 days.

The following states allow unlimited access for at least 48-foot, 102-inch vehicles (and to the extent the state allows them on the National Network, 53-foot trailer combinations) on state highways: Arkansas, Colorado (57-foot 4-inch semitrailers on state highways), Connecticut (48-foot, 102-inch), Hawaii, Idaho, Indiana (all public roads, local restrictions may apply), Kansas (all roads/highways), Maine, Maryland, Massachusetts (all state/local roads), Mississippi, Montana (all roads/highways), Nebraska, Nevada (all public roads: 53-foot, 102-inch; 28-foot, 6-inch), Ohio (all public roads, local restrictions may apply), Oklahoma, South Carolina, South Dakota, Tennessee, Texas (all roads/highways), Utah (all public roads, local restrictions may apply), Washington, Wyoming.

ALABAMA
Width, twin combination: All roads except county roads of less than 12-foot lane widths. Tractor-semitrailer: 53 feet - 102-inches allowed same as width.

ALASKA
Width, tractor-semitrailer, twin combination: 5 miles off federal designated and specially designated routes.

ARIZONA
Width: Access over existing truck routes to terminals and facilities for food, fuel, repairs, and rest.
Tractor-semitrailer, twin combination: All roads, depending on width (57-foot trailers on Interstate and primary roads - 10 miles off Interstate).

CALIFORNIA
Width: All roads except as posted.
Tractor-semitrailer, twin combination: Access to and from National Network allowed forservices. Movement allowed up to 1 road mile from signed interchange; terminals--movement for terminal access on state highways allowed only on signed routes (signs are: S = services, T = terminals). NOTE: Movement for terminal access on city or county roads allowed along signed routes. Contact appropriate city or county for particular provisions for unsigned routes.

CONNECTICUT
Width: All roads.
Tractor-semitrailer, twin combination: Access restricted to 1 mile off the National Network for food and fuel (beyond that, by permission from state DOT, various restrictions apply for 53-foot semitrailers).

DELAWARE
Width, tractor-semitrailer, twin combination: Interstate and all US-numbered routes except as posted. Access up to 1 mile off the Interstate and US routes for food, fuel, repairs, and terminals. Access beyond 1 mile by permit only.

DISTRICT OF COLUMBIA
Width, tractor-semitrailer: If kingpin setting is 41 feet or less, unlimited, otherwise by permit.
Twin combination: Access by permit only.

FLORIDA
Width: All roads except where posted.
Tractor-semitrailer: Unlimited.
Twin combination: All roads except where posted.

GEORGIA
Width: 102 inches on all roads with 12-foot lane width.
Tractor-semitrailer, twin combination: STAA access from National Network designated for certain routes beyond 1 mile. Additional designated routes restrict overall length to 67 feet, 6 inches.

ILLINOIS
Width, tractor-semitrailer, twin combination: Access of 5 miles on state highways and designated local roads to points of loading and unloading and to facilities for food, fuel, repairs, and rest.
Weight: Access for vehicles over 73,280 lbs on local routes if posted.

IOWA
Width, tractor-semitrailer, twin combination: Unlimited access. Livestock and stinger-steered autotransporters may leave designated system by direct route to points of pickup and delivery.

KENTUCKY
Width, tractor-semitrailer, twin combination: Unlimited access.

LOUISIANA
Width, tractor-semitrailer, twin combination: Access restricted to 10 miles to terminals and facilities for food, fuel, repairs, and rest.

MAINE
Width: All roads.
Tractor-semitrailer, twin combination: Access restricted to 2 miles in rural areas and 1 mile in urban areas; permit required for operations beyond; unlimited for trailers over 45 feet with 38-foot kingpin limit measured from rear tractor axle to rear semitrailer axle.

MARYLAND
Width, twin combination: Shortest practical route between a designated highway and a truck terminal, or point of origin or destination for cargo, or up to 1 mile to facilities for food, fuel, repairs, or rest.

MICHIGAN
Width, tractor-semitrailer, twin combination: Access restricted to 5 miles on state highways only.

MINNESOTA
Width: All roads.
Tractor-semitrailer, twin combination: Access allowed between designated highways and facilities for food, fuel, repairs, and rest, points of loading and unloading for HHG and livestock carriers, "or for the purpose of providing continuity of route." Designated highways consist of the Interstate System, divided highways having 4 or more lanes, and other state designated roads.

MISSOURI
Width, tractor-semitrailer, twin combination: Access restricted to 10 miles.

NEW HAMPSHIRE
Twin combination: Access by permit only.
Tractor-semitrailer: Allowed 1 mile off the National Network to facilities for food, fuel, repairs, and to terminals.

NEW JERSEY
Twin combination: Access up to 1 mile, free permit required for greater distances.
Tractor-semitrailer: All roads (48-foot - 96-inch combinations);102-inch equipment on state designated routes (all roads with 11-foot lane widths).

NEW MEXICO
Width: All roads.
Tractor-semitrailer, twin combination: Access (and deliveries) within 20 miles of the Interstate system and designated highways.

NEW YORK
Width: 102 inches on all highways with 10-foot lane widths (excluding New York City) and on all qualifying and access highways.
Tractor-semitrailer, twin combination: Access restricted to 1 mile on any highway from the interchange or intersection of a qualifying highway; other specified routes to be authorized by state DOT upon carrier petition.

NORTH CAROLINA
Width, tractor-semitrailer, twin combination: Access by application beyond 3 miles.

NORTH DAKOTA
Width: All roads.
Tractor-semitrailer, twin combination: Access available on all state highways; vehicles over 75 feet in overall length access via designated state highways.

OKLAHOMA
Width: No access provisions but allowed on any road having surface width of 20 feet or more (4-lane divided highways).
Tractor-semitrailer: Semitrailer length restricted to 59 feet, 6 inches with 5 miles access off National Network.
Twin combination: Semitrailer or trailer length restricted to 53 feet off the federal system with 5 miles access.

OREGON
Width, tractor-semitrailer, twin combination: Access up to 1 mile from National Network, except where posted, and on designated routes (up to 53-foot trailer).

PENNSYLVANIA
Tractor-semitrailer, twin combination: One mile from National Truck Network. No access allowed from state-approved routes. Access for 102-inch wide, 48-foot trailers, 53-foot trailers, and 28-foot, 6-inch twins allowed on previously approved routes or with written approval of state DOT through access approval process.

RHODE ISLAND
Width, tractor-semitrailer: 48-foot semitrailer all roads, 53-foot semitrailer approved routes only.
Twin combination: Access up to 1 mile off National Network, beyond 1 mile access through state DOT approval.

SOUTH CAROLINA
Width, tractor-semitrailer: All roads.
Twin combination: Up to 5 miles of network routes to facilities for food, fuel, repairs, rest, and to terminals as defined in SC Regulation 63-391(8); other access by permission.

VERMONT
Width: All roads.
Tractor-semitrailer: 48-foot - unlimited within 65 feet overall, 53 feet - 1-mile access, beyond that by route- and company-specific permit.
Twin combination: Access without permit limited to 1 mile for fuel, food, lodging, repairs.

VIRGINIA
Width, tractor-semitrailer, twin combination: Access restricted to shortest possible route not to exceed 1 mile. Access allowed on routes exceeding 1 mile with prior approval by state DOT.

WEST VIRGINIA
Width, tractor-semitrailer, twin combination: Access restricted to 2 miles including points of loading and unloading.

WISCONSIN
Width: All roads except where posted.
Tractor-semitrailer, twin combination: Access not to exceed 5 miles including points of loading and unloading or staging or vehicle assembly facilities.

 

LONGER/HEAVIER COMBINATIONS/TURNPIKE/TOLL ROAD OPERATIONS

© American Trucking Associations, Inc. January 1996

The operations outlined below are authorized by rules and regulations of the state and are subject to change with little or no notice. The notations do not describe twin 28-foot combinations on the Interstate, but rather longer vehicles (doubles and triples) not prescribed in the Surface Transportation Assistance Act. All US turnpikes allow twin 28-foot, 6-inch combinations. Detailed information concerning the required permits and fees may be obtained from individual state agencies.

ALASKA--Longer doubles allowed year-round on National Network and permit routes, restricted to axle weights under Formula B. Triple trailer combinations allowed on specified routes during the summer months on a permit basis. Longer doubles having maximum 48-foot trailer and/or combined trailer length not to exceed 95 feet are allowed on the National Network year-round. Triples have a maximum 28-foot, 6-inch trailer, 120-foot overall length, weight governed by bridge formula. Certain other power unit and driver certification requirements apply.

ARIZONA--Longer doubles combinations and triple trailer combinations are allowed only on I-15, and are subject to 129,000 lbs GVW and 105 feet in length. Longer doubles also allowed on certain routes entering Arizona from border states that allow longer doubles (limited access in Arizona); triples--certain routes entering Arizona from border states, 92-foot overall length, 121,000 lbs on 9 axles, 123,500 lbs on 10 axles.

COLORADO--The state allows the operation of twin 48-foot turnpike doubles, 48-foot - 28-foot, 6-inch Rocky Mountain doubles, and 28-foot, 6-inch triple trailer combinations on Interstates 25, 70 (not all), 270, 76, and 225. Overweight permit is obtained from DOT in Denver with a tractor-specific annual fee. Designated facility must be within 10 miles of Interstate. Vehicles must comply with axle weight limitations and GVW is limited by Formula B, Table A or 110,000 lbs whichever is least.

FLORIDA--The Florida Turnpike Authority allows twin 48-foot trailers to operate on the turnpike, subject to 116-foot length and 147,000 lbs GVW limitations.

IDAHO--Doubles combinations limited to 48-foot trailer length, 105-foot overall length, and 105,500 lbs GVW under annual permit. Triple trailer combinations limited to 105-foot overall length and 105,500 lbs GVW.

INDIANA--The Indiana Toll Road Commission will authorize the movement of twin 48-foot, 6-inch trailer combinations not exceeding 127,400 lbs GVW on the toll road. Contact the commission in Granger for permit information. Triple trailer combinations are allowed on the toll road only subject to 28-foot trailer length, no overall length limit, and 127,400 lbs GVW.

KANSAS--The Kansas Turnpike Authority allows turnpike doubles and triple trailer combinations subject to 119-foot overall length limit and 120,000 lbs GVW. Triples combinations subject to driver and equipment standards, and specific routing (motor freight truck terminals within 5-mile radius around Goodland to Colorado border on I-70; motor freight truck terminals in Baxter Springs to Oklahoma border on US 69); permits issued by Kansas DOT. Kansas DOT also issues special permits for access to turnpike from a motor freight truck terminal within a 20-mile radius from the eastern toll booth and within a 10-mile radius from any other toll booth.

MASSACHUSETTS--The Massachusetts Turnpike Authority allows twin 48-foot trailer combinations under an annual permit. Gross weight cannot exceed 127,400 lbs and equipment must be certified. No triple trailer combinations are allowed.

MONTANA--Rocky Mountain doubles, 81-foot combined trailer length (maximum 48-foot semitrailer), no overall length limit. Triples combinations, 105-foot length (using cab-over tractor), 110-foot (conventional), 28-foot, 6-inch trailer; operations limited to Interstates and within 2 mile radius of services or terminal (authorization required beyond 2 miles).

NEBRASKA--The state will allow triple trailer combinations not exceeding 105 feet in overall length as long as the trailers are empty and the carrier maintains $1 million in insurance. Such combinations are permitted west of Highway 50 and must originate from a staging area no more than 6 miles from the Interstate. Turnpike doubles maximum 105 feet, Rocky Mountain doubles maximum 95 feet. GVWs from 80,000 lbs to 95,000 lbs allowed with special permit up to 10 days.

NEVADA--The state will allow twin 45-foot trailers or combinations not exceeding 48 feet for the first trailer and 42 feet for the second trailer (heavier trailer in the lead) and triple trailer combinations subject to a 105-foot overall length and 129,000 lbs GVW.

NEW YORK--The New York Thruway Authority allows twin 48-foot turnpike doubles subject to 114-foot overall length, 143,000 lbs GVW, and equipment and driver certification. No triple combinations are allowed.

NORTH DAKOTA--The state allows 75-foot Rocky Mountain doubles, 110-foot triples, and 110-foot turnpike doubles at GVWs up to 105,500 lbs on Interstates (with permit) and on state designated highways.

OHIO--The Ohio Turnpike Authority will allow a tractor-semitrailer and short doubles combination no longer than 75 feet or turnpike doubles up to 90 feet without a permit. Both are subject to 127,000 lbs GVW. Combinations exceeding 90 feet must obtain an operating permit, which includes mileage-based fees. Special permission required on doubles travel.

OKLAHOMA--The state allows triple 29-foot trailer combinations up to 90,000 lbs on Interstate and 4-lane highways (5-mile access) permit required. Also allows Rocky Mountain and turnpike doubles up to 90,000 lbs on Interstate and 4-lane highways (5-mile access) permit required.

OREGON--Allows triple trailer combinations up to 105 feet overall under either a single trip or an annual permit, but trailers must be consistent in size to within 6 feet, and gross weight cannot exceed 105,500 lbs. Also allows doubles combinations with a maximum trailer length of 40 feet, combined trailer length of 68 feet, and 105,500 lbs GVW. Both double and triple trailer combinations allowed on designated highways only.

PENNSYLVANIA--The Pennsylvania Turnpike Authority will allow twin 28-foot, 6-inch trailers on the turnpike, subject to an overall length of 85 feet and 100,000 lbs GVW. Triple trailer combinations are not allowed.

SOUTH DAKOTA--Triples: 110 feet overall, 129,000 lbs maximum GVW, allowed on Interstates plus designated state highways; turnpike doubles and Rocky Mountain doubles: 110 feet overall, 129,000 lbs maximum GVW allowed on Interstates plus designated state highways; triple trailer lengths limited to 28 feet, 6 inches and double trailer lengths limited to 48 feet with offtracking requirements. Single trip permit required for above listed combinations.

UTAH--Under annual permits, triple trailer combinations not exceeding 105 feet in overall length, truck and two-trailer combinations with trailers of equal length not exceeding 95 feet in overall length, Rocky Mountain doubles not exceeding 98 feet in overall length, and twin trailer combinations not exceeding 105 feet in overall length may be operated on the Interstate and designated highways. Under quarterly or annual permits, two-unit combinations not exceeding 77 feet in overall length or Formula B may be operated on all highways. Also under quarterly or annual permits, three-unit combinations up to 92 feet in overall length with gross weight determined by Formula B limits may be operated on all roads. Utah also allows 129,000 lbs under permit. Autotransporters with two stinger-steered trailers not exceeding 105 feet in overall length on the Interstate may obtain annual permits.

WASHINGTON--The state will allow doubles, trailers with a combined trailer length of 68 feet, provided that if the trailer-trailer length exceeds 61 feet with or without load, the vehicle must be operated under permit. Twin 28-foot, 6-inch trailers may operate at 61 feet without permit. No triple trailer combinations are allowed.

WYOMING--Rocky Mountain doubles with the combined length of trailers not exceeding 81 feet and meeting required axle gross weights are legal statewide. Wyoming allows over 117,000 lbs GVW under special permit for non-Interstate highways.

 

INTERSTATE/NATIONAL NETWORK ALLOWABLE GROSS WEIGHT
(FEDERAL BRIDGE FORMULA)

© American Trucking Associations, Inc. January 1996

GROSS WEIGHT LAW

States have adopted the Federal Bridge Formula for travel on the Interstate and other public highways either by formula (Formula B) or by chart (Table B), with the exception of the states found at Table A. Variations may occur due to rounding language adopted or not adopted by the respective state. Table B appears as provided by the Federal Highway Administration.

 

FORMULA B:W = 500 (LN/N-1 + 12N + 36)

W = maximum weight in pounds carried on any group of two or more axles computed to nearest
500 pounds.
L = distance in feet between the extremes of any group of two or more consecutive axles.
N = number of axles in group under consideration

 

 

* 68,000 may be carried on tandem axles spaced at least 36 feet apart.
NOTE:States that have a "table" in their law [See Type of Restriction on page] may have slight weight differences for selected axles/distances due to rounding.
NOTE:All states applying Table B or Formula B restrict Interstate highways to 80,000 lbs (except those with grandfather rights).
NOTE:The higher 8-foot tandem weight is not a requirement of Formula B, but rather is an interpretation by the federal government, and has not necessarily been adopted by individual states

 

TABLE: A ALLOWABLE LOADS

© American Trucking Associations, Inc.January 1996

 

 

TABLE: A ALLOWABLE LOADS (continued)

 

TABLE: A ALLOWABLE LOADS (continued)

 

TABLE: A ALLOWABLE LOADS (continued)

 

 

 



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