Mine Index 0122 Brewerton Coal Company, Brewerton No. 81 Mine

Mine Index Number: 0122

Company Name:	Brewerton Coal Company
Mine Name:	Brewerton No. 81 Mine
Start Date:	1901	End Date:	December 1938
Type of Mine:	Underground
Total acres shown:	765
Acres after map date:	25	General Area of mining acres shown:

Shaft, Slope, Drift or Tipple Location(s)

Type	County	Township-Range	Section	Part Section

Main shaft

Sangamon

15N 5W

11

650 FSL, 440 FWL

Geology

		Thickness (ft)
Seam	Depth (ft)	Min	Max	Ave	Mining Method

Springfield

235

5.0

6.0

5.5

RPP

Geological Problems Reported

The roof was 8 inches to 3.5 ft of black shale that required heavy timbering (every 4 ft) and usually came down anyway, especially near the horsebacks. If the shale was less than 1.5 ft thick, it was pulled down by the miners. In some areas, large dark calcareous concretions were present. Above the shale was a 6 inch to 4 ft limestone that had an uneven contact with the shale beneath. Occasional rolls and inverted conical projections of the limestone protruded down into the coal. Clay horsebacks were “everywhere”, and could be expensive to cut through, especially if they were hard. Charcoal and pyrite were present in lenses and bands in the upper part of the coal seam throughout the mine. The underclay was about 12 ft thick and heaved 4 to 5 inches, but no serious squeezes took place.

Production

Company

Mine Name

Date

Production (tons)

Jefferson Coal Company (add)	Jefferson (add)	1901-1905	383,878

OGara Coal Company (add)	Jefferson (add)	1905-1907	220,072

OGara and King Coal Company (add)	Jefferson (add)	1907-1908	84,018

T. J. OGara Coal Company (add)	Jefferson (add)	1908-1913	392,707

Middle States Coal Company (add)	Mid States No. 26 (add)	1913-1916	52,311

Sangamon County Coal Company (add)	Jefferson (add)	1916-1922	1,264,156

Brewerton Coal Company (add)	Brewerton No. 81 (add)	1922-1925	956,919

Brewerton Coal Corporation (add)	Brewerton No. 81 (add)	1926-1932	443,891

Jefferson Coal Mining Company (add)	Jefferson No. 81 (add)	1933-1936	169,231

Jefferson Mine Employees (add)	Jefferson No. 81 (add)	1937-1938	18,998

Brewerton Coal Company (add)	Brewerton No. 81 (add)	1938-1938	113,720

Total Production: 4,099,901

Production Notes

Coal Report production (if available)

Sources of Data

Source Map

Map Date

Original Scale

Digitized Scale

Map Type

Microfilm, document 351217

2-22-1938

1:2400

1:5196

Not final

Annotated Bibliography (Data source - brief description of information)

Coal Reports - Production, ownership, years of operation.

Directory of Illinois Coal Mines (Sangamon County) - Mine names, mine index, ownership, years of operation.

ENR Document 85/01 - Mining method.

Mine notes (Sangamon County) - Mine type, shaft location, seam, depth, thickness, geologic problems.

Microfilm map, document 351217, reel 03134, frames 409-410 - Shaft locations, mine outline.