2012 Spring Load Limit Restrictions

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. 2012 State Highway Spring Load Restriction Map  (Proposed) Statewide Spring Load Restriction Summary Report Mileage Posted In Each State Highway Region State Highway Changes From 2011 Summary of Dates when Spring Load Restrictions were placed and removed on State Highways 2012 County Highway Spring Load Limits Report 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 2012 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. 2012 STATE HIGHWAY SPRING LOAD RESTRICTION TABLE   Highway Location Begin/End MRM Length Proposed Posting Current Posting Status SD 10 US 83 to SD 47S 203.22 to 224.24 21.0 6 Tons/Axle Not Posted US 16A US 385 at Custer to SD 244 26.14 to 55.76 29.6 7 Tons/Axle Not Posted SD 19 SD 44 to SD 42 54.17 to 64.49 10.3 May Post? Not Posted SD 20 Jct US 85/SD 20 to Reva 29.31 to 51.74 22.4   May Post? Not Posted SD 20 Perkins/Ziebach Co. Line to SD 73 103.03 to 111.25 8.2 May Post? Not Posted SD 25 SD 38 to SD 34 61.72 to 82.83 21.1 6 Tons/Axle Not Posted SD 36 US 16A to SD 79 36.00 to 45.01 9.0 7 Tons/Axle Not Posted SD 40 Hayward to Cheyenne River 38.26 to 69.00 30.7 7 Tons/Axle Not Posted SD 44 Scenic to Region Boundary 88.04 to 107.53 19.5 May Post? Not Posted SD 71 Nebraska State Line to 2 miles south of Cheyenne River 0.00 to 21.00 21.0 7 Tons/Axle Not Posted SD 75 SD 20 north to North Dakota Border 213.65 to 242.99 29.3 May Post? Not Posted SD 87 Wind Cave National Park to US 16/385 47.27 to 79.36 30.8 7 Tons/Axle Not Posted SD 89 US 16A to SD 87 58.51 to 64.58 6.0 7 Tons/Axle Not Posted SD 130 1 mile east of US 12 to SD 271 194.0 to 200.0 6.0 6 Tons/Axle Not Posted SD 248 Cactus Flats to Reliance 131.26 to 251.08 119.8 May Post? Not Posted SD 251 Nebraska State Line to US 18 0.00 to 15.84 15.8 6 Tons/Axle Not Posted SD 271 Main Street in Java to Campbell County Line 166.82 to 173.74 6.9 6 Tons/Axle Not Posted SD 471 Provo to US 18 19.60 to 27.50 7.9 7 Tons/Axle Not Posted SD 1804 SD 44 south 8 miles 112.13 to 120.16 8.0 6 Tons/Axle Not Posted SD 1804 Hughes/Sully County Line to US 212 265.48  to 303.30 37.8 May Post? Not Posted SD 1806 US 18 north to Missouri River 15.68 to 25.75 10.0 6 Tons/Axle Not Posted SD 1806 SD 44 south 6 miles 42.78 to 48.55 5.9 6 Tons/Axle Not Posted SD 1806 Spillway north to Mission Ridge 193.83 to 221.05 27.2 May Post? Not Posted   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.