Idaho Transportation Department
About Us Travel Services DMV Get Involved News and Information
Printer-Friendly Version
ITD Home News and Info Contact Us
 

DMV HomeOn-Line ServicesNew to Idaho?Driver ServicesVehicle ServicesMotor Carrier Services / Ports of EntryDriver Licensing OfficesVehicle Licensing OfficesOther State DMV LinksInformation for Idaho Military PersonnelManualsLinksRecent LegislationIdaho Motor Vehicle LawsAdmin. RulesVoter RegistrationDMV Historytrucking.idaho.govContact Us

BLACK OVERWEIGHT CHART


Maximum Allowable Weight Distribution for Annual Overweight
Permits on BLACK coded routes of the Route Capacity Map.
Higher axle weight limits for tandem, tridem and quad axles may be allowed if the axle spacing’s are larger.
See chart on next page for axle spacing’s and the allowed weight.
This page in Printable Format (pdf)


Single Axle
33,000
Tandem Axle
56,000
Tridem Axle
70,500

Tire
Width
Single Axle,
Single Tires
Tandem Axles,
Single Tires
8.25
13,200
26,400
9.00
14,400
28,800
10.00
16,000
32,000
11.00
17,600
35,200
12.00
19,200
38,400
13.00
20,800
41,600
14.00
22,400
44,800
15.00
24,000
48,000
16.00
25,600
51,200
17.00
27,200
54,400
18.00
28,800
56,000
19.00+
30,400
56,000

Maximum allowable weight is based on the distance in feet between the first and last axle of any group or groups of consecutive axles.

To find the weight allowed for the vehicle combination, use the number of axles and axle spacings from the number 2 axle to the last axle of the combination, add the weight for the steering axle (approximately 12,000 lbs) to this weight, to acquire the Total Gross Weight Allowed.

To find the weight allowed for self propelled vehicles, use the number of axles and axle spacings from the number 1 axle to the last axle of the combination. If axles have less than 4 tires per axle, see chart above for weights allowed.

Check the weight allowed for every internal group or groups of axles as well as total Gross Weight. At times the sum of the axle weights may be less than the Total Gross Weight Allowed. Must use most restrictive weights.

If the vehicle combination exceeds the weight allowed on any group or groups of axles, or Total Gross Weight Allowed by this chart and the route capacity map, the vehicle must operate on a single trip permit if approved.

Axle Space
in Feet
2
Axles

3
Axles
4
Axles
5
Axles
6
Axles
7
Axles
8
Axles
9
Axles
10
Axles
11
Axles
12
Axles

4
56,000










5
58,000










6
59,500










7
61,000










8
62,500
69,500









9
64,500
70,500









10
66,000
72,000








11
66,000
73,000









12
66,000
74,500
82,500








13
66,000
75,500
83,500








14
66,000
76,500
84,500








15
66,000
78,000
86,000








16
66,000
79,000
87,000
95,500







17
66,000
80,500
88,000
96,500







18
66,000
81,500
89,000
98,000







19
66,000
83,000
90,000
99,000







20
66,000
84,000
91,500
100,000
109,000






21
66,000
85,500
92,500
101,000
110,000






22
66,000
86,500
93,500
102,000
111,000






23
66,000
88,000
94,500
103,000
112,000






24
66,000
89,000
95,500
104,000
113,000
122,000





25
66,000
90,500
97,000
105,000
114,000
123,000





26
66,000
91,500
98,000
106,000
115,000
124,000





27
66,000
93,000
99,000
107,000
116,000
125,000





28
66,000
94,000
100,000
108,000
117,000
126,000
135,500




29
66,000
95,500
101,000
109,000
118,000
127,000
136,000




30
66,000
96,500
102,500
110,000
119,000
128,000
137,000




31
66,000
98,000
103,500
111,000
120,000
129,000
138,000




32
66,000
99,000
104,500
112,000
121,000
130,000
139,000
148,500



33
66,000
99,000
105,500
113,000
122,000
131,000
140,000
149,500



34
66,000
99,000
106,500
114,500
123,000
131,500
141,000
150,500



35
66,000
99,000
108,000
115,500
124,000
132,500
142,000
151,500



36
66,000
99,000
109,000
116,500
124,500
133,500
143,000
152,000
161,500


37
66,000
99,000
110,000
117,500
125,500
134,500
144,000
153,000
162,500


38
66,000
99,000
111,000
118,500
126,500
135,500
144,500
154,000
163,500


39
66,000
99,000
112,000
119,500
127,500
136,500
145,500
155,000
164,500


40
66,000
99,000
113,500
120,500
128,500
137,500
146,500
156,000
165,500
175,000

41
66,000
99,000
114,500
121,500
129,500
138,500
147,500
157,000
166,500
176,000

42
66,000
99,000
115,500
122,500
130,500
139,500
148,500
158,000
167,000
176,500

43
66,000
99,000
116,500
123,500
131,500
140,500
149,500
158,500
168,000
177,500

44
66,000
99,000
117,500
124,500
132,500
141,500
150,500
159,500
169,000
178,500
188,000
45
66,000
99,000
119,000
125,500
133,500
142,500
151,500
160,500
170,000
179,500
189,000
46
66,000
99,000
120,000
126,500
134,500
143,500
152,500
161,500
171,000
180,500
190,000
47
66,000
99,000
121,000
127,500
135,500
144,000
153,000
162,500
172,000
181,500
191,000
48
66,000
99,000
122,000
128,500
136,500
145,000
154,000
163,500
172,500
182,000
191,500
49
66,000
99,000
123,000
129,500
137,500
146,000
155,000
164,500
173,500
183,000
192,500
50
66,000
99,000
124,500
131,000
138,500
147,000
156,000
165,000
174,500
184,000
193,500
51
66,000
99,000
125,500
132,000
139,500
148,000
157,000
166,000
175,500
185,000
194,500
52
66,000
99,000
126,500
133,000
140,500
149,000
158,000
167,000
176,500
186,000
195,500
53
66,000
99,000
127,500
134,000
141,500
150,000
159,000
168,000
177,500
186,500
196,000
54
66,000
99,000
128,500
135,000
142,500
151,000
160,000
169,000
178,000
187,500
197,000
55
66,000
99,000
130,000
136,000
143,500
152,000
161,000
170,000
179,000
188,500
198,000
56
66,000
99,000
131,000
137,000
144,500
153,000
161,500
171,000
180,000
189,500
199,000
57
66,000
99,000
132,000
138,000
145,500
154,000
162,500
171,500
181,000
190,500
200,000
58
66,000
99,000
132,000
139,000
146,500
155,000
163,500
172,500
182,000
191,000

59
66,000
99,000
132,000
140,000
147,500
156,000
164,500
173,500
183,000
192,000

60
66,000
99,000
132,000
141,000
148,500
157,000
165,500
174,500
183,500
193,000

61
66,000
99,000
132,000
142,000
149,500
157,500
166,500
175,500
184,500
194,000

62
66,000
99,000
132,000
143,000
150,500
158,500
167,500
176,500
185,500
195,000

63
66,000
99,000
132,000
144,000
151,500
159,500
168,500
177,500
186,500
196,000

64
66,000
99,000
132,000
145,000
152,500
160,500
169,000
178,000
187,500
196,500

65
66,000
99,000
132,000
146,000
153,500
161,500
170,000
179,000
188,500
197,500

66
66,000
99,000
132,000
147,500
154,500
162,500
171,000
180,000
189,000
198,500

67
66,000
99,000
132,000
148,500
155,500
163,500
172,000
181,000
190,000
199,500

68
66,000
99,000
132,000
149,500
156,500
164,500
173,000
182,000
191,000
200,000

69
66,000
99,000
132,000
150,500
157,500
165,500
174,000
183,000
192,000


70
66,000
99,000
132,000
151,500
158,500
166,500
175,000
184,000
193,000


71
66,000
99,000
132,000
152,500
159,500
167,500
176,000
184,500
194,000


72
66,000
99,000
132,000
153,500
160,500
168,500
177,000
185,500
194,500


73
66,000
99,000
132,000
154,500
161,500
169,500
177,500
186,500
195,500


74
66,000
99,000
132,000
155,500
162,500
170,000
178,500
187,500
196,500


75
66,000
99,000
132,000
156,500
163,500
171,000
179,500
188,500
197,500


76
66,000
99,000
132,000
157,500
164,500
172,000
180,500
189,500
198,500


77
66,000
99,000
132,000
158,500
165,500
173,000
181,500
190,500
199,500


78
66,000
99,000
132,000
159,500
166,500
174,000
182,500
191,000
200,000


79
66,000
99,000
132,000
160,500
167,500
175,000
183,500
192,000



80
66,000
99,000
132,000
161,500
168,500
176,000
184,500
193,000



81
66,000
99,000
132,000
162,500
169,500
177,000
185,500
194,000



82
66,000
99,000
132,000
164,000
170,500
178,000
186,000
195,000



83
66,000
99,000
132,000
165,000
171,500
179,000
187,000
196,000



84
66,000
99,000
132,000
165,000
172,500
180,000
188,000
197,000



85
66,000
99,000
132,000
165,000
173,500
181,000
189,000
197,500



86
66,000
99,000
132,000
165,000
174,000
182,000
190,000
198,500



87
66,000
99,000
132,000
165,000
175,000
182,500
191,000
199,500



88
66,000
99,000
132,000
165,000
176,000
183,500
192,000
200,000



89
66,000
99,000
132,000
165,000
177,000
184,500
193,000




90
66,000
99,000
132,000
165,000
178,000
185,500
194,000




91
66,000
99,000
132,000
165,000
179,000
186,500
194,500




92
66,000
99,000
132,000
165,000
180,000
187,500
195,500




93
66,000
99,000
132,000
165,000
181,000
188,500
196,500




94
66,000
99,000
132,000
165,000
182,000
189,500
197,500




95
66,000
99,000
132,000
165,000
183,000
190,500
198,500




96
66,000
99,000
132,000
165,000
184,000
191,500
199,500




97
66,000
99,000
132,000
165,000
185,000
192,500
200,000




98
66,000
99,000
132,000
165,000
186,000
193,500





99
66,000
99,000
132,000
165,000
187,000
194,500





100
66,000
99,000
132,000
165,000
188,000
195,500





101
66,000
99,000
132,000
165,000
189,000
196,000





102
66,000
99,000
132,000
165,000
190,000
197,000





103
66,000
99,000
132,000
165,000
191,000
198,000





104
66,000
99,000
132,000
165,000
192,000
199,000





105
66,000
99,000
132,000
165,000
193,000
200,000





Page Last Modified: 12/16/2013 2:20:39 PM

Division of Motor Vehicles / Commercial Vehicle Services
Ports of Entry- (208) 334-8688
Motor Carrier- (208) 334-8611
Overlegal Permits- (208) 334-8420
or 1-800-662-7133

CVS@itd.idaho.gov

About Us | Traveler Services | DMV | Projects | News And Info | Reader-Friendly | Privacy & Security
Idaho Transportation Department
3311 W. State Street ยท P.O. Box 7129
Boise, ID 83707-1129