Jurisdiction: Abandoned Mine Lands
2013 Completed Projects Archive
2013 Havelock C Project
This project involved the backfilling of about 2000 feet of highwalls and mine pits at a 16 acre abandoned surface mine in Hettinger County southeast of New England. Approximately 198,000 cubic yards of excavation was required for this project. The contractor was Martin Construction, Inc. of Gladstone, ND. Work was completed July 30, 2012, and the contract cost was $246,620.
2013 Richter Project
This project involved the backfilling of about 2000 feet of highwalls and mine pits at a 40 acre abandoned surface mine in Morton County northeast of Glen Ullin. Approximately 130,000 cubic yards of excavation was required for this project. The contractor was Baranko Brothers, Inc. of Dickinson, ND. Work was completed August 13, 2012, and the contract cost was $261,682.50.
2013 Beulah/Zap Phase 14 Project
The objectives of this project were to drill holes to locate underground mined workings and to pump a cementitious grout through these holes to fill the mine voids and reduce the likelihood of collapse. Approximately 6,106 feet were drilled and 7,119 cubic yards of grout were pumped into underground mine voids at this project site. The contractor for this project was B & C Concrete Pumping, Inc. of Williston, ND. Work was completed September 10, 2013, and the contract cost was $951,844.77. A separate contract was issued to Northeast Technical Services, Inc. for testing of the grout used for this project and the final cost was $36,240.
2013 Scranton/Bowman Project
The objectives of this project were to drill holes to locate underground mined workings and to pump a cementitious grout through these holes to fill the mine voids and reduce the likelihood of collapse. Approximately 15,590 feet were drilled, four monitoring wells were installed and 3,498 cubic yards of grout were pumped into underground mine voids at this project site. The contractor for this project was B & C Concrete Pumping, Inc. of Williston, ND. Work was completed January 1, 2014, and the contract cost was $858,092.14. A separate contract was issued to Northeast Technical Services, Inc. for testing of the grout used for this project and the final cost was $28,646. A separate contract was also issued to Water Supply, Inc. of Mandan, ND, for groundwater monitoring and hydrogeological consulting. This contract is ongoing.
2013 Sinkhole Filling Project
This project was conducted to fill approximately 180 dangerous sinkholes resulting from collapse of underground coal mines. Sinkholes were filled near the cities of Beulah, Zap, Richardton, Dickinson, Williston, Hanks, Noonan, Velva, Washburn, Wilton, Haynes and Scranton, North Dakota. Repairs were also made to erosion features on a reclaimed surface mine near Velva, ND. The contractor for this work was Pleasant and Sons Construction of Greenville, KY. Work was completed November 10, 2013, and the 2013 contract cost was $128,709.