Pennsylvania Code & Bulletin
COMMONWEALTH OF PENNSYLVANIA

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The Pennsylvania Code website reflects the Pennsylvania Code changes effective through 54 Pa.B. 6234 (September 28, 2024).

67 Pa. Code § 185.3. Groups of consecutive axles.

§ 185.3. Groups of consecutive axles.

 Except as provided in §  185.4 (relating to six-axle combinations) no combination registered and having a gross weight in excess of 73,280 pounds shall be driven on a highway with a weight on any group of consecutive axles in excess of the applicable weight shown on the following table:

BRIDGE FORMULA TABLE
For Determining Maximum Axle Weights When Registered
and Gross Weight Exceed 73,280 Pounds


Maximum load in pounds carried on any
Center-to-center distance ingroup of 2 or more consecutive axles
feet between the first and
last axles of any group of 2
or more consecutive axles2 axles3 axles4 axles5 axles6 axles7 axles
4 …34,000
5 …35,000
6 …36,000AXLE GROUPS IN
7 …37,000THESE SPACINGS
8 …38,000…42,000IMPRACTICAL
9 …39,00043,000
10 …40,00043,500
11 …44,500
12 …45,000…50,000
13 …46,00050,500
14 …46,50051,500
15 …47,50052,000
16 …48,000…52,500…58,000
17 …49,00053,50058,500
18 …49,50054,00059,500
19 …50,50054,50060,000
20 …51,000…55,500…60,500…66,000
21 …52,00056,00061,00066,500
22 …52,50056,50062,00067,000
23 …53,50057,50062,50068,000
24 …54,000…58,000…63,000…68,500…74,000
25 …55,00058,50063,50069,00074,500
26 …55,50059,50064,50069,50075,000
27 …56,50060,00065,00070,00076,000
28 …57,000…60,500…65,500…71,000…76,500
29 …58,00061,50066,00071,50077,000
30 …58,50062,00067,00072,00077,500
31 …59,50062,50067,50072,50078,000
32 …60,000…63,500…68,000…73,000…78,500
33 …64,00068,50074,00079,500
34 …64,50069,50074,50080,000

35 …65,50070,00075,000
36 …68,000…70,500…75,500
37 …68,00071,00076,000
38 …68,00072,00077,000
39 …68,00072,50077,500
40 …68,500…73,000…78,000
41 …69,50073,50078,500
42 …70,00074,50079,000
43 …70,50075,00080,000

44 …71,500…75,500
45 …72,00076,000
46 …77,000
47 …77,500
48 …78,000
49 …78,500
50 …79,500



51 and over …80,00080,00080,000
All distances shall be measured longitudinally to the nearest foot.






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