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Amount that can be profitably expended in fiscal year ending

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Location. The city of Johnstown is located in southwestern Cambria County, Pa., approximately 58 miles east of Pittsburgh, Pa. It is situated in a deep and comparatively narrow valley at the junction of Stony Creek and Little Conemaugh River, which unite to form the Conemaugh River. (See U. S. Geological Survey chart for Johnstown, Pa.)

Existing project. The plan of improvement provides for increasing the channel capacity by enlarging and realining the existing channels and protecting the banks with concrete pavement. Miscellaneous features of work include relocation of railroad track, highway and utilities, and alterations to sewers, drains, bridge piers, and other structures. The improvement involves about 47,300 feet of channel as follows: The Conemaugh River for a distance of 19,100 feet extending from the "Point" downstream to about 2,650 feet below the Pennsylvania Railroad bridge at Dornick Point: the Little Conemaugh River for a distance of 7,500 feet from the "Point" upstream to about 150 feet below the Pennsylvania Railroad bridge in the vicinity of Fifth Street; and Stony Creek for a distance of 20,700 feet from the "Point" upstream to about 500 feet above the Ferndale Bridge in the vicinity of the borough of Ferndale. The project is designed to accommodate discharges equivalent to those of the March 1936 flood, the maximum natural flow of record, with a minimum of overbank flow and to practically eliminate damages therefrom. The existing project was authorized by the Flood Control Acts, approved June 22, 1936, and August 28, 1937.

The estimated cost of new work, revised in 1942, is $8,670,000, of which $7,793,000 is for construction and $877,000 for rights-ofway and damages.

Local cooperation.-Section 2 of the Flood Control Act approved June 28, 1938, applies.

Operations and results during fiscal year.-New work. Some preliminary work was performed consisting of miscellaneous engineering work. In connection with the acquisition of land, flowage easements over 216.38 acres were acquired during the year.

Maintenance.-Bids were received for the removal of a bar formed at the junction of Little Conemaugh River and Stony Creek and were rejected due to unsatisfactory bids. This bar was resurveyed and the information obtained will be used in soliciting new bids for the removal of the bar under contract. In addition, repairs to a portion of footers of the slope paving below the Walnut Street bridge were partially completed.

The total costs were $140,462, of which $130,389.67 was for new work and $10,072.33 for maintenance. The total expenditures were $158,290.98.

Condition at end of fiscal year. The improved channels are fully complete. Construction was accomplished by units, consisting of units Nos. 1, 2, 3, and supplementary unit No. 2A, all in the Conemaugh River section, unit No. 4 comprising the Little Conemaugh River section, and units Nos. 5 and 6 comprising the Stony Creek section. All work necessary to the acquisition of land is approximately 96.5 percent complete. To date, about 96.3 percent of the total acreage involved has been acquired and consists of 0.60 acre in fee simple and flowage easements over 382.78 acres, the former being fully complete. Remaining work consists of miscellaneous engineering work and concluding the acquisition of land. The total costs to the end of the fiscal year were as follows: Regular funds:

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The total expenditures were $8,355,865.88, of which $8,322,442.50 was from regular funds and $33,423.38 from Emergency Relief funds.

Proposed operations.-The balance unexpended and accounts receivable on June 30, 1945, will be applied as follows:

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41, 303. 57

Total for all work

191, 948. 90

Maintenance: Removal of bar formed at junction of Little Conemaugh River and Stony Creek which obstructs the natural and flood flows, by contract (Sept. 1 to Oct. 31, 1945)

These expenditures will complete all work under the project. The additional sum of $5,400.00 can he profitably expended during the fiscal year ending June 30, 1947, as follows: Maintenance: Channel work including repair of slope paving, as required

Cost and financial summary

Cost of new work to June 30, 1945.
Cost of maintenance to June 30, 1945.

Total cost of permanent work to June 30, 1945Plus accounts receivable June 30, 1945

Gross total costs to June 30, 1945---Includes $33,423.38 from Emergency Relief funds.

1

$5,400

1 $8, 339, 939. 91

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68, 919. 31

Unobligated balance available June 30, 1945---

Amount that can be profitably expended in fiscal year ending
June 30, 1947 for maintenance

2

1 Includes $33,423.38 from Emergency Relief funds.

2 Exclusive of available funds.

13. MAHONING CREEK RESERVOIR, PA.

5, 400.00

Location. The dam site is located on Mahoning Creek in Armstrong County, Pa., 21.6 miles above the junction of the creek with the Allegheny River. It is about 611⁄2 miles southeast of New Bethlehem, Pa., and about 51 miles northeast of Pittsburgh, Pa. The reservoir is located in Armstrong, Indiana, and Jefferson Counties, Pa. (See U. S. Geological Survey charts for Rural Valley and Smicksburg, Pa.)

Existing project. This provides for the construction of a floodcontrol reservoir dam of the concrete gravity type with a gatecontrolled center spillway flanked by abutment sections joining the valley sides. The dam is 926 feet long at the top, rises 160 feet above the stream bed, and provides for the gross controlled storage of 74,200 acre-feet of water from a tributary drainage area of 341 square miles. Of this storage 69,700 acre-feet are available for flood prevention at Pittsburgh and in the upper Ohio Valley, generally. The remaining 4,500 acre-feet are in permanent storage. Two penstocks are contained in the structure for possible future

generation of hydroelectric power. The reservoir is operated as a unit of a coordinated reservoir system for the protection of Pittsburgh and the upper Ohio Valley, generally. The existing project was authorized by the Flood Control Act approved June 22, 1936. The estimated cost of new work, revised in 1938, is $6,500,000. Local cooperation.-Section 2 of the Flood Control Act approved June 28, 1938, applies.

Operations and results during fiscal year.-New work.-Some preliminary work, consisting of miscellaneous engineering work, was performed. In addition, plans and specifications for access road, landscaping and paving of existing small parking area were completed. In connection with the acquisition of land in the reservoir area, a total of 27.10 acres in fee simple and flowage easements over 18.89 acres was acquired during the year.

Maintenance (operating and care).-The reservoir was operated for the benefit of flood control, as required, and necessary repairs were made to the dam and to operators' quarters and grounds throughout the fiscal year. The Ohio River at Pittsburgh was above flood stage three times during the year, and on four other occasions rises occurred which crested between 20 and 25 feet. The three largest floods, on February 28, March 4 and March 7, 1945, crested at 27.7, 26.9 and 33.4 feet, respectively. Storage was made during each of these floods but as the intervals between floods were short, total release of the impounded water could not be effected until after the last flood. The reservoir water surface reached levels 63.9, 70 and 80.5 feet above the minimum pool on February 28, March 5, and March 8, respectively. The highest level reached during the year, on March 8, represents an impoundment of 55,400 acre-feet, or about 79 percent of the capacity available for flood control purposes. Results of reservoir operations in the reduction of flood stages at Pittsburgh, Pa., and Wheeling, W. Va., in combination with other units in the reservoir system are shown in the corresponding paragraph for Tygart River Reservoir. During the first part of July the pool was held below minimum pool to facilitate repair work. During the remainder of the year operations were routine except on the occasion of several minor rises when some water was stored and released as river conditions permitted.

The total costs were $41,554.73, of which $25,754.69 was for new work and $15,800.04 for maintenance. The total expenditures were $49,390.50.

Condition at end of fiscal year.-The dam is complete and the reservoir is in operation as a unit in the reservoir system designed for the protection and the reduction of flood heights in the upper Ohio Valley, generally. All work necessary to the acquisition of land in the reservoir area is approximately 98.2 percent complete. To date, about 99.2 percent of the total acreage involved has been acquired and consists of 2,501.10 acres in fee simple and flowage easements over 76.89 acres, the latter being fully complete. Work remaining to be done consists of preliminary work; completing a

utility settlement; completion of relocations and settlements in connection with highway relocation; concluding the acquisition of land in the reservoir area; construction of a public sanitary building and storage building; completion of landscaping, parking area, access road, and certain miscellaneous appurtenances to the dam. The total costs to the end of the fiscal year were as follows:

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The total expenditures were $6,232,233.10, of which $6,206,561.81 was from regular funds and $25,671.29 from Emergency Relief funds.

Proposed operations.-The balance unexpended and accounts receivable on June 30, 1945, will be applied as follows:

Accounts payable, June 30, 1945--

New work: Preliminary work by hired labor (July 1, 1945 to June 30, 1946)

Maintenance operating and care of dam:

Operation

Ordinary maintenance and repairs

Total, maintenance

Total for all work

$1,367.67

16, 567. 66

$17, 700.00
2, 486. 28

20, 186, 28

38, 121. 61

The additional sum of $360,000 can be profitably expended during the fiscal year 1946 to complete the new work under the project. The additional sum of $33,500 can be profitably expended during fiscal year 1947, as follows:

Maintenance (operating and care of dam):

Operation

Ordinary maintenance and repairs

Improvement and reconstruction

Total, maintenance

Cost and financial summary

1

$25, 500

4,000

4,000

33, 500

Cost of new work to June 30, 1945.
Cost of maintenance to June 30, 1945-

Total cost of permanent work to June 30, 1945---

Plus accounts receivable June 30, 1945___

Gross total costs to June 30, 1945.

Minus accounts payable June 30, 1945.

Net total expenditures..

Unexpended balance June 30, 1945

Total amount appropriated to June 30, 1945..

1 Includes $25,671.29 from Emergency Relief funds.

1 $6, 123, 385.89

1

1

99, 013. 72

1 6, 222, 399. 61 11, 201. 16

6, 233, 600.77

1,367.67

16, 232, 233. 10

26, 920.45

--- 16, 259, 153. 55

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