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Spring Load Limits

 

Current Postings:

Effective at 10:00 AM MST Friday, February 12, 2016, Spring Load Limit Restrictions will go into effect on US16A, SD36, SD40, SD71, SD87, SD89 and SD471 at the weight limits shown in the table below.

Spring Load Restrictions - Timing and Duration:

It is the Department's position to not implement Spring Load Restrictions any earlier than necessary. The Department monitors the daily high/low temperatures at numerous locations throughout the state. The high/low temperatures are used to calculate accumulated freeze and thaw indexes. Please be aware that this method is only one decision tool the Department uses to determine when to implement and remove load restrictions. The Department still relies heavily on the existing highway conditions and past experience of its field personnel when making the final decision of when to implement and remove load restrictions.

Authority & Guidelines:

Under the authority of SDCL 32-22-24, a Highway Maintaining Authority may restrict loads on their highways anytime during the period from February 15 to April 30. The purpose of the load restrictions is to protect the highways from break-up during the spring thaw.

Under the authority of SDCL 32-22-24, a highway maintaining authority may limit weights on highways anytime during the period from February 15 to April 30. The purpose of these load limits is to protect the highways from break-up during spring thaw. The list above shows the proposed 2015 County Highway Spring Load Limits. These limits are subject to change as conditions warrant. Actual load limit posting takes precedence over those listed here and are in effect only when the load limit signing is in place.

2016

Highway

Location

Begin/End MRM

Length

Proposed Posting

Current Posting Status

US 16A

US 385 at Custer to SD 244

26.14 to 55.76

29.6

7 Tons/Axle

Posted Feb. 12 10 a.m.

SD 36

US 16A to SD 79

36.00 to 45.01

30.7

7 Tons/Axle

Posted Feb. 12 10 a.m.

SD 40

Hayward to Cheyenne River

38.26 to 69.00

30.7

7 Tons/Axle

Posted Feb. 12 10 .am.

SD 71

Nebraska Line to 2 mi. South of Cheyenne River

0.00 to 21.00

21.0

7 Tons/Axle

Posted Feb. 12 10 .am.

SD 87

Wind Cave Nat’l Park to US 16/385

47.27 to 79.36

30.8

7 Tons/Axle

Posted Feb. 12 10 .am.

SD 89

US 16A to SD 87

58.51 to 64.58

6.0

7 Tons/Axle

Posted Feb. 12 10 .am.

SD 471

Provo to US 18

19.60 to 24.00

4.4

7 Tons/Axle

Posted Feb. 12 10 .am.

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