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Spring Load Limits

 

Current Postings:

There are no Spring Load Limit Restrictions in effect at this time.

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
PROPOSED STATE HIGHWAY SPRING LOAD RESTRICTION TABLE

Highway

Location

Begin/End MRM

Length

Proposed Posting

Current Posting Status

US 16A

US 16/385 at Custer to SD 244

26.14 to 55.76

29.6

7 Tons/Axle

 
SD 19
SD 38 to SD 34
73.73 to 96.94
23.2
7 Tons/Axle
 
SD 20
US 85 to SD 79 south
29.31 to 51.74
22.4
8 Tons/Axle
 

SD 25

SD 38 to SD 34

61.72 to 82.83

21.1

7 Tons/Axle

 
SD 26
SD 47 to SD 45
230.12 to 252.85
22.7
6 Tons/Axle
 
SD 34
SD 25 to US 81 south
365.01 to 373.12
8.1
8 Tons/Axle
 

SD 36

US 16A to SD 79

36.00 to 45.01

9.0

7 Tons/Axle

 

SD 40

Hayward to Cheyenne River

38.26 to 69.00

30.7

7 Tons/Axle

 
SD 42
US 281 to Davison County Line
280.00 to 285.88
5.8
6 Tons/Axle
 

SD 44

US 83 east to US 183

200.74 to 240.40

39.6

May Post?

 
SD 44
Winner east to SD 47
253.57 to 274.48
20.9
May Post?
 
SD 45
Platte north to I-90
27.00 to 51.59
24.5
8 Tons/Axle
 
SD 53
Clearfield north to US 18
10.98 to 26.98
16.0
May Post?
 
SD 53
Vivian south 8 miles
75.39 to 83.39
8.0
May Post?
 
SD 63
Midland south to I-90
83.48 to 96.93
13.4
7 Tons/Axle
 

SD 71

Nebraska State Line to 2 miles south of Cheyenne River

0.00 to 21.00

21.0

7 Tons/Axle

 
SD 73
SD 20 to US 12 213.45 to 241.63
28.1
6 Tons/Axle
 

SD 87

Wind Cave National Park to US 16/385

47.27 to 79.36

30.8

7 Tons/Axle

 

SD 89

US 16A to SD 87

58.51 to 64.58

6.0

7 Tons/Axle

 
SD 168
SD 79 to US 85
25.00 to 31.60
6.6
May Post?
 

SD 248

Kadoka to Murdo

162.44 to 203.87

41.4

7 Tons/Axle

 
SD 248
US 83 to Reliance
225.34 to 261.77
36.4
7 Tons/Axle
 

SD 251

Nebraska State Line to US 18

0.00 to 15.84

15.8

6 Tons/Axle

 

SD 271

Main Street in Java to Campbell County Line

166.82 to 173.74

6.9

6 Tons/Axle

 
SD 271
SD 10 to North Dakota Border
166.82 to 173.74
6.9
6 Tons/Axle
 

SD 471

Provo to US 18

19.60 to 27.50

7.9

7 Tons/Axle

 

SD 1804

SD 44 south 8 miles

112.13 to 120.16

8.0

6 Tons/Axle

 

SD 1804

Hughes/Sully County Line to US 212

265.48  to 303.30

37.8

7 Tons/Axle

 

SD 1806

US 18 north to Missouri River

15.68 to 25.75

10.0

6 Tons/Axle

 

SD 1806

SD 44 south 6 miles

42.78 to 48.55

5.9

6 Tons/Axle

 
SD 1806
Jct SD 273 north to US 83
138.45 to 180.05
41.6
7 tons/Axle
 

SD 1806

Spillway north to Mission Ridge

193.83 to 221.05

27.2

7 Tons/Axle

 

 

Note: "May Post?" indicates a situation were a road is regarded somewhat susceptible to spring thawing action and may require posting as conditions later warrant.

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