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BLUE OVERWEIGHT CHART


Maximum Allowable Weight Distribution for Annual Overweight
Permits on BLUE 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
27,000
Tandem Axle
46,000
Tridem Axle
57,500



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
46,000
16.00
25,600
46,000
17.00
27,000
46,000
18.00
27,000
46,000
19.00+
27,000
46,000

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
46,000










5
47,500










6
48,500










7
50,000










8
51,500
56,500









9
52,500
57,500









10
54,000
58,500









11
54,000
59,500









12
54,000
61,000
67,500








13
54,000
62,000
68,500








14
54,000
63,000
69,500








15
54,000
64,000
70,000








16
54,000
65,000
71,000
78,500







17
54,000
66,000
72,000
79,000







18
54,000
67,000
73,000
80,000







19
54,000
68,000
74,000
81,000







20
54,000
69,000
74,500
81,500
89,000






21
54,000
70,000
75,500
82,500
90,000






22
54,000
71,000
76,500
83,500
90,500






23
54,000
72,000
77,500
84,000
91,500






24
54,000
73,000
78,500
85,000
92,500
100,000





25
54,000
74,000
79,000
86,000
93,000
100,500





26
54,000
75,000
80,000
86,500
94,000
101,500





27
54,000
76,000
81,000
87,500
95,000
102,500





28
54,000
77,000
82,000
88,500
95,500
103,000
110,500




29
54,000
77,000
83,000
89,500
96,500
104,000
111,500




30
54,000
77,000
83,500
90,000
97,000
104,500
112,000




31
54,000
77,000
84,500
91,000
98,000
105,500
113,000




32
54,000
77,000
85,500
92,000
99,000
106,000
114,000
121,500



33
54,000
77,000
86,500
92,500
99,500
107,000
114,500
122,500



34
54,000
77,000
87,500
93,500
100,500
108,000
115,500
123,000



35
54,000
77,000
88,000
94,500
101,500
108,500
116,000
124,000



36
54,000
77,000
89,000
95,000
102,000
109,500
117,000
124,500
132,500


37
54,000
77,000
90,000
96,000
103,000
110,000
117,500
125,500
133,000


38
54,000
77,000
91,000
97,000
103,500
111,000
118,500
126,000
134,000


39
54,000
77,000
92,000
97,500
104,500
111,500
119,000
127,000
134,500


40
54,000
77,000
92,500
98,500
105,500
112,500
120,000
127,500
135,500
143,000

41
54,000
77,000
93,500
99,500
106,000
113,500
120,500
128,500
136,000
144,000

42
54,000
77,000
94,500
100,000
107,000
114,000
121,500
129,000
137,000
144,500

43
54,000
77,000
95,500
101,000
107,500
115,000
122,500
130,000
137,500
145,500

44
54,000
77,000
96,500
102,000
108,500
115,500
123,000
130,500
138,500
146,000
154,000
45
54,000
77,000
97,000
103,000
109,500
116,500
124,000
131,500
139,000
147,000
154,500
46
54,000
77,000
98,000
103,500
110,000
117,000
124,500
132,000
140,000
147,500
155,500
47
54,000
77,000
99,000
104,500
111,000
118,000
125,500
133,000
140,500
148,500
156,000
48
54,000
77,000
100,000
105,500
112,000
119,000
126,000
133,500
141,500
149,000
157,000
49
54,000
77,000
101,000
106,000
112,500
119,500
127,000
134,500
142,000
150,000
157,500
50
54,000
77,000
101,500
107,000
113,500
120,500
127,500
135,000
143,000
150,500
158,500
51
54,000
77,000
102,500
108,000
114,000
121,000
128,500
136,000
143,500
151,500
159,000
52
54,000
77,000
105,500
108,500
115,000
122,000
129,000
136,500
144,500
152,000
160,000
53
54,000
77,000
102,500
109,500
116,000
122,500
130,000
137,500
145,000
153,000
160,500
54
54,000
77,000
102,500
110,500
116,500
123,500
131,000
138,000
146,000
153,500
161,500
55
54,000
77,000
102,500
111,000
117,500
124,500
131,500
139,000
146,500
154,000
162,000
56
54,000
77,000
102,500
112,000
118,500
125,000
132,500
139,500
147,500
155,000
162,500
57
54,000
77,000
102,500
113,000
119,000
126,000
133,000
140,500
148,000
155,500
163,500
58
54,000
77,000
102,500
113,500
120,000
126,500
134,000
141,000
149,000
156,500
164,000
59
54,000
77,000
102,500
114,500
120,500
127,500
134,500
142,000
149,500
157,000
165,000
60
54,000
77,000
102,500
115,500
121,500
128,500
135,500
143,000
150,500
158,000
165,500
61
54,000
77,000
102,500
116,500
122,500
129,000
136,000
143,500
151,000
158,500
166,500
62
54,000
77,000
102,500
117,000
123,000
130,000
137,000
144,500
152,000
159,500
167,000
63
54,000
77,000
102,500
118,000
124,000
130,500
137,500
145,000
152,500
160,000
168,000
64
54,000
77,000
102,500
119,000
124,500
131,500
138,500
146,000
153,500
161,000
168,500
65
54,000
77,000
102,500
119,500
125,500
132,000
139,000
146,500
154,000
161,500
169,500
66
54,000
77,000
102,500
120,500
126,500
133,000
140,000
147,500
155,000
162,500
170,000
67
54,000
77,000
102,500
121,500
127,000
134,000
141,000
148,000
155,500
163,000
171,000
68
54,000
77,000
102,500
122,000
128,000
134,500
141,500
149,000
156,500
164,000
171,500
69
54,000
77,000
102,500
123,000
129,000
135,500
142,500
149,500
157,000
164,500
172,500
70
54,000
77,000
102,500
124,000
129,500
136,000
143,000
150,500
158,000
165,500
173,000
71
54,000
77,000
102,500
124,500
130,500
137,000
144,000
151,000
158,500
166,000
174,000
72
54,000
77,000
102,500
125,500
131,000
137,500
144,500
152,000
159,500
167,000
174,500
73
54,000
77,000
102,500
126,500
132,000
138,500
145,500
152,500
160,000
167,500
175,500
74
54,000
77,000
102,500
127,000
133,000
139,500
146,000
153,500
161,000
168,500
176,000
75
54,000
77,000
102,500
128,000
133,500
140,000
147,000
154,000
161,500
169,000
176,500
76
54,000
77,000
102,500
128,000
134,500
141,000
147,500
155,000
162,500
170,000
177,500
77
54,000
77,000
102,500
128,000
135,500
141,500
148,500
155,500
163,000
170,500
178,000
78
54,000
77,000
102,500
128,000
136,000
142,500
149,500
156,500
164,000
171,500
179,000
79
54,000
77,000
102,500
128,000
137,000
143,000
150,000
157,000
164,500
172,000
179,500
80
54,000
77,000
102,500
128,000
137,500
144,000
151,000
158,000
165,500
173,000
180,500
81
54,000
77,000
102,500
128,000
138,500
145,000
151,500
158,500
166,000
173,500
181,000
82
54,000
77,000
102,500
128,000
139,500
145,500
152,500
159,500
167,000
174,500
182,000
83
54,000
77,000
102,500
128,000
140,000
146,500
153,000
160,000
167,500
175,000
182,500
84
54,000
77,000
102,500
128,000
141,000
147,000
154,000
161,000
168,500
176,000
183,500
85
54,000
77,000
102,500
128,000
142,000
148,000
154,500
161,500
169,000
176,500
184,000
86
54,000
77,000
102,500
128,000
142,500
148,500
155,500
162,500
170,000
177,500
185,000
87
54,000
77,000
102,500
128,000
143,500
149,500
156,000
163,500
170,500
178,000
185,500
88
54,000
77,000
102,500
128,000
144,000
150,500
157,000
164,000
171,500
178,500
186,500
89
54,000
77,000
102,500
128,000
145,000
151,000
158,000
165,000
172,000
179,500
187,000
90
54,000
77,000
102,500
128,000
146,000
152,000
158,500
165,500
173,000
180,000
188,000
91
54,000
77,000
102,500
128,000
146,500
152,500
159,500
166,500
173,500
181,000
188,500
92
54,000
77,000
102,500
128,000
147,500
153,500
160,000
167,000
174,500
181,500
189,000
93
54,000
77,000
102,500
128,000
148,000
154,000
161,000
168,000
175,000
182,500
190,000
94
54,000
77,000
102,500
128,000
149,000
155,000
161,500
168,500
176,000
183,000
190,500
95
54,000
77,000
102,500
128,000
150,000
156,000
162,500
169,500
176,500
184,000
191,500
96
54,000
77,000
102,500
128,000
150,500
156,500
163,000
170,000
177,500
184,500
192,000
97
54,000
77,000
102,500
128,000
151,500
157,500
164,000
171,000
178,000
185,500
193,000
98
54,000
77,000
102,500
128,000
152,500
158,000
164,500
171,500
179,000
186,000
193,500
99
54,000
77,000
102,500
128,000
153,000
159,000
165,500
172,500
179,500
187,000
194,500
100
54,000
77,000
102,500
128,000
154,000
160,000
166,000
173,000
180,500
187,500
195,000
101
54,000
77,000
102,500
128,000
154,500
160,500
167,000
174,000
181,000
188,500
196,000
102
54,000
77,000
102,500
128,000
155,500
161,500
168,000
174,500
182,000
189,000
196,500
103
54,000
77,000
102,500
128,000
156,500
162,000
168,500
175,500
182,500
190,000
197,500
104
54,000
77,000
102,500
128,000
157,000
163,000
169,500
176,000
183,500
190,500
198,000
105
54,000
77,000
102,500
128,000
158,000
163,500
170,000
177,000
184,000
191,500
199,000
Page Last Modified: 12/16/2013 2:22:41 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

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Idaho Transportation Department
3311 W. State Street ยท P.O. Box 7129
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