In addition to the work in the tunnels, the construction of the Henry Street station, with its elevator shaft, which involved the removing of the core of material between the tunnels already driven under Clark street for a distance of 600 feet, has progressed rapidly and is now practically completed. The construction of this station in tunnel 90 feet below the surface required great care, on account of the heavy nature of the ground, and the buildings overhead which would have been affected by any movement of the ground. A critical point of the work was the construction of the passageway from the elevator shaft across the north tunnel and above the island platform. The steel is now completely erected and the pouring of the concrete cloistered arches nearly completed.

The percentages of the principal items of work completed are as follows:

About 90 per cent of the total estimated value of the work is complete.

The following tabulation gives the work done under the principal items of construction on each section of the Park Place,

William and Clark Street subway, Route No. 48, and the total value of work estimated, from the beginning of construction to December 31, 1917:

Sewer Work:-Route No. 48, Section No. 1.-Sewer work on this section is complete. During the year 1,269 linear feet of sewers were built, making a total of 1,689 linear feet of sewers constructed to December 31, 1917. Record drawings for this section are now in course of preparation.

Route No. 48, Section No. 2.-On this section also sewer work is complete, 1,063 linear feet of sewers having been constructed during the year, or a total of 4,543 linear feet constructed to December 31, 1917. Record drawings of the new sewer on John street from William street to Pearl street were completed and the sewer turned over to the President of the Borough of Manhattan for future maintenance and control.

Station Finish:- Route No. 48, Sections Nos. 1 and 2.- Contract for station finish work for these sections was let to John B. Roberts on June 4, 1917. Contract price, $139,919.22.

Work was started on this contract and is progressing favorably. The hollow tile work has been completed. The stairway construction and plastering at the Wall Street station have been completed. The rough plumbing at the Fulton and Wall Street stations has been completed. All of the electric conduits have been placed.

The following tabulation gives the work done under the principal items of this contract, from the beginning of construction to December 31, 1917, and the total estimated value of work completed during the same period:

Track Installation: Route No. 48, Sections Nos. 1, 2 and 3.This work is covered by a contract let to Messrs. Engel & Hevenor on October 18, 1916, the approximate price of the complete contract being $229,440.50. This contract also includes work on Routes Nos. 4 & 38, Sections Nos. 1-A and 1 to 6-A, inclusive, and on Route No. 33, part of Section No. 3. Work on this route from Chambers street and West Broadway to Wall Street station is now practically complete.

The following tabulation gives the work done under the principal items of this contract, from the beginning of construction to December 31, 1917, and the total estimated value of work completed during the same period:

EASTERN PARKWAY LINE AND EXTENSIONS

The Eastern Parkway line, known as Route No. 12, is a fourtrack extension of the First Subway in Brooklyn. It extends from Atlantic avenue under Flatbush avenue and Eastern parkway to Buffalo avenue. It is divided into four sections, Nos. 1, 1-A, 2 and 3. The Nostrand Avenue branch of this line has two tracks and extends in subway from Eastern parkway to Flatbush avenue. It is known as Route No. 29, and is divided for construction purposes into two sections, Nos. 1 and 2. The Livonia Avenue branch line, known as Route No. 31, is a three-track elevated line. It will extend easterly from Buffalo avenue and Eastern parkway via East 98th street and Livonia avenue to New Lots avenue. An elevated extension, known as Route No. 57, is also proposed on Utica avenue from Eastern parkway to Flatbush avenue. It is proposed to build Route No. 57 as an assessment proposition, the cost to be assessed on the property benefited by its construction. The Brighton Beach connection between the Fourth Avenue subway and the Brighton Beach line extends from St. Felix street and Fulton street under St. Felix street, the Long Island Railroad terminal and Flatbush avenue to the Brighton Beach line. For convenience, parts of this New York Municipal Railway line have been included with contracts for Interborough Rapid Transit sections Nos. 1 and 1-A of Route No. 12. Sections Nos. 1-B and 2-A of Route No. 12 contain New York Municipal Railway tracks exclusively and will be described later.

Plans: Route No. 12, Section No. 1.- This section is divided into two parts: The two-track Brighton Beach connection, beginning at a point under Fulton street and extending under St. Felix street, the Long Island Railroad terminal, and thence under Flatbush avenue to a point about 274 feet south of St. Mark's avenue, is included in Section No. 1 of this route, except that portion under The Long Island Railroad Company's property between Hanson place and Atlantic avenue; this latter portion is known as Section No. 1-B and will be described under the New York Municipal Railway lines. The other portion of this section includes a four-track subway, beginning at the end of the existing subway at Flatbush and Atlantic avenues and extending under Flatbush

avenue to a point about 274 feet south of St. Mark's avenue. The contractor for Section No. 1 of Route No. 12 is the Cranford Company. Date of contract, July 16, 1914. Contract period, 30 imonths. Summary of contractor's bid, $2,195,296.25.

The contract drawings have been changed to provide for a future connection between the Fulton Street Elevated line and the Fourth Avenue subway at Fulton and St. Felix streets.

All plans were completed and shop drawings checked prior to 1917. Studies are now being made of a modification in the arrangement of the stairs leading from the subpassageway at the easterly end of the Atlantic Avenue station of the present subway by providing a stairway leading directly into the Long Island Railroad enclosure.

Estimates have been prepared for tentative apportionment of cost of construction of this section and Section No. 1-A, which sections are to be operated jointly by the New York Municipal Railway Corporation and the Interborough Rapid Transit Company, and plans are under way indicating the portions of the combined structure to be maintained by each company.

Route No. 12, Section No. 1-A.- This section includes a portion of the four-track Eastern Parkway line and the two-track Brighton Beach connection, extending from a point under Flatbush avenue to a point at about the center of Prospect Park plaza. Contractor, Cranford Company. Date of contract, May 4, 1914. Contract period, 30 months. Summary of contractor's bid, $2,225,519.25.

Working drawings were completed and shop drawings checked prior to 1917.

Slight changes have been made in the arrangement of the ventilation in Prospect Park plaza to conform to the plans of the Park Department.

Estimates have been prepared for tentative apportionment of cost of construction of this section and Section No. 1, which sections are to be operated jointly by the New York Municipal Railway Corporation and the Interborough Rapid Transit Company, and plans are under way indicating the portions of the combined structure to be maintained by each company.

Route No. 12, Section No. 2.- This is a four- track structure