APPENDIX F.

SPECIFICATIONS AND PLANS OF THE ISOLATION BUILDING ERECTED AT PROVIDENCE HOSPITAL.

GENERAL CONDITIONS.

Specifications. These specifications are intended to embrace all the material and workmanship necessary in the erection and completion of the building in all its parts, the whole to be comprised within any contract or contracts that may be made for the same. The contractor is to take no advantage of any manifestly unintentional discrepancies or omissions that may be found to exist between the plans and specifications, and in all differences or disagreements the decision of the inspector of buildings upon the plans and specifications is to be binding on the contractor.

Drawings.-The drawings referred to in this specification consist of plans, elevations, sections, and details, which will be supplemented by full-size detail drawings to be furnished as the work progresses. All these drawings are intended to cooperate with and form a part of the specification and accompanying contract. Where figures are given they are to be followed in preference to measurements by scale. Anything not shown on drawings, but mentioned in specifications, or vice versa, or anything not specifically set forth in either, but which is reasonably implied, shall be furnished or performed the same as though shown and mentioned in both. Each contractor must examine the drawings and carefully read the written and printed portions of the specifications, for every line and word is to remain in full force and virtue, unless canceled by the Commissioners of the District of Columbia before signing. All errors must be referred to the inspector of buildings for correction.

Work and materials.-The entire work to be constructed and finished in every particular in a good, substantial, and workmanlike manner, according to the annexed specifications and accompanying drawings, and to the approval and acceptance of the Commissioners of the District of Columbia. All materials are to be of the best of their several kinds in quality, as herein specified, and all labor to be performed in the best manner by skilled workmen. All work and materials must conform to laws, rules, and regulations in force in the District of Columbia. The inspector of buildings is to have full power to reject any materials or workmanship he may think unsafe, defective, or unsound, and cause the same to be immediately removed or reconstructed by the contractor, at his own cost and expense, and in case of his refusal to comply with the inspector's orders he (the inspector) is to have full power to procure materials and order it to be done by other workmen, and to charge the expense incurred thereby to the contractor, and deduct the same from the amount due, or to become due, to him. Each contractor shall provide all materials and labor necessary for the complete and substantial execution of everything described, shown, or reasonably implied, including all transportation, scaffolding, apparatus, and utensils requisite for the same.

Permits. The contractor will procure and pay for all necessary permits to enable him to properly execute the work.

Survey. Upon application the contractor will be provided with a survey of the site and drawings showing the grade levels and location of sewer and water pipes. Laying out the work.-The contractor shall lay out the work and be responsible for its correctness.

Water. The contractor shall make application and pay any charge for the use of water to carry out his work. (See Plumbing.)

Providence Hospital premises.-The contractors shall make good any damage to the hospital premises occasioned by the prosecution of this work.

Premises.-The contractors will be required, without cost to the District, to replace all pavements, etc., displaced or injured by them, and to remove from the streets and premises all surplus materials, earth, rubbish, etc., whenever so ordered by the inspector of buildings.

Fuel and stores.-The contractor is to furnish stoves and fuel to heat the building, if necessary, during the progress of the work, or when so ordered by the inspector of buildings.

Insurance.-The contractor will be required to keep the building and materials intended therefor insured against fire, for such amounts as may be required from time to time by the inspector of buildings, the policies to be made payable to the Commissioners of the District of Columbia jointly with the contractor, as their interest may appear. The policies shall be deposited with the inspector of buildings for safe-keeping.

Loss or damage.-All loss or damage arising from the nature of the work to be done, or from any unforeseen or unusual obstruction or difficulties which may be encountered in the prosecution of the same, will be sustained by the contractor.

Facilities for inspection.-The contractors shall render all due and sufficient facilities to the inspector of buildings, or anyone authorized to visit or inspect the building. Care of building.-The contractor is to have full charge of the building until completed, and must keep reliable watchmen on guard both day and night. He shall provide all necessary guards, rails, and night lights. He will be held responsible for all property that may be injured or stolen while the building is in his care, and shall bear all loss from neglect of local ordinances, and, on completion, all work must be perfect and premises broom clean.

Alterations. The inspector of buildings, with the approval of the Commissioners, is to have full power to make any alterations, additions, or reductions he may think proper in the plans signed by the contractor, without in any way interfering or lessening the agreement or contract made upon said plans and specifications, provided always that when the proposed alterations involve a change in the cost of the work the money value thereof must be agreed upon, and the price and agreement committed to writing before the alteration is commenced. When the proposed alterations involve a reduction in the cost of the work, such reduction shall be allowed the District at a fair price, and an agreement as to reductions may be entered into either before or after signing of contract. The Commissioners will not be responsible for any extra expense unless agreed beforehand as above, and will exact a fair allowance for all reductions or omissions.

Extra work. The contractor must be prepared to do any extra work that may, with the approval of the Commissioners, be ordered by the inspector of buildings, and a fair time allowance will be made for such work, but both the price and time must be committed to writing, as heretofore mentioned.

Inspectors.-Inspectors will be appointed, whose duty it shall be to point out to the contractors any neglect or disregard of the specifications, plans, or contracts, but the right of final acceptance or condemnation of the work will not be waived at any time during its progress.

Contractors will be held responsible for the faithful execution of their contracts, and upon all technical questions concerning the execution of the work in accordance with the specifications and the measurements thereof the decision of the Commissioners shall be final. Ordinarily one inspector will be employed by the District for each building or other structure under contract; but if, on account of any apparent disregard of the specifications on the part of the contractor, additional inspectors should be required, they will be employed by the District at the rate of $4 per diem, in such numbers as, in the opinion of the Commissioners, may be necessary, and the cost of the same will be charged to the contractor.

Employees of contractor.-The contractor will be required to be on the work personally at all times during its progress, or to be represented by a superintendent or other agent, who shall have full authority to carry out promptly at all times the instructions of the inspector of buildings given through his representative on the work. Such instructions will be strictly limited to the proper management and quality of the work to secure prompt compliance of the terms of specifications and contract. In event of refusal on the part of such superintendent or any foreman on the work to carry out promptly such instructions, or in case any such overseer or other employee shall be dilatory in carrying out the order of the inspector, shows a tendency to slight the work, or attempts to put in material not up to the standard called for by the specifications, he shall be discharged at once by the contractor, upon the request of the inspector of buildings, and not reemployed on the work. Any person employed on the work who may be inefficient or guilty of improper conduct will be immediately discharged upon the request of the inspector of buildings, or his representative, and not reemployed on the work.

Insolent or discourteous conduct to a local representative of the District of Columbia will be sufficient cause for discharge.

Payments.-Payments will be made upon estimates approved by the Commissioners, less 10 per cent of each estimate, to be withheld until the final payment, which will only be made upon the certificate of the Commissioners that the work has been completed and properly executed to the satisfaction of the Board of Commissioners. Payments will be made in accordance with the progress of the work, but not until the building has reached the following stages: First, when the first-floor joists are all on; second, when the second-floor joists are all on; third, when the roofs are all

on and sheathed, and chimneys topped out; fourth, when the building is ready for painting and all roofs are on and the plumbing approved; fifth, when work is completed according to plans and specifications.

All excavations and ditches, and all brickwork up to the level of first floor, must be completed, and the first-floor joist on walls, within one and one-half months after date of contract.

All brickwork must be up to the level of the second floor and the second-floor joists on walls within two and one-half months after signing contract. All roofs to be on and covered and entire building ready for laying floors within three and onehalf months after date of contract. All outside work, except painting, to be finished and building ready for hanging doors within five months after date of contract. All other work to be completed within six months after date of contract.

Commence work. The work must be begun within one week after date of contract, and all completed as specified in paragraph preceding. If not so completed, the pay of all inspectors employed on the work after the time fixed for its completion will be charged against and deducted from any money that may be due, or become due, the contractor, and also the sum of $10 per diem for the same period, estimated as liquidated and fixed damages to the District of Columbia, arising from failure to complete the work at the time specified, time of completion of the contract being an essential element and consideration.

Bond.-Good and sufficient bonds to the United States, in a penal sum equal to the estimated amount of contract, with sureties to be approved by the Commissioners of the District of Columbia, undertaking and binding themselves without reservation to secure to said District, at all events, the strict and faithful performance of all the conditions in his or their contract to the satisfaction of and the acceptance by said Commissioners.

Transfer of contract.-No contract or any interest therein shall be transferred by the parties to whom the award is made. It is a condition of all the contracts that such transfers will be null and void, and will cause the contract to be annulled and the work to be given to other parties under the conditions mentioned in paragraph entitled "Commence work."

Pay of employees.-Contractors shall pay the workmen who shall be employed by them upon the work under their contract punctually, in cash current, and not in what is denominated store pay or orders.

Hours of work. The attention of bidders is called to the act of Congress approved August 1, 1892, limiting the hours of daily service of laborers and mechanics employed upon public works of the United States to eight hours in any one calendar day.

EXCAVATION.

(Refer to general clauses and conditions.)

Excavate for basement, footings, walls, piers, conduits, manholes, pipes, etc., of the dimensions and to the depth shown on drawings and required to fully carry out the work herein specified, including all pipe trenches, etc. The excavation is to be 12 inches larger all around outside than is shown on plans. The bottom of all trenches for walls, piers, etc., to be made smooth and level. Grade and tamp all other earth surfaces to the grade required and as shown on drawings. All earth taken from the excavation and not needed for filling and grading is to be removed from the premises. The grade line shown on drawings is the grade to which the surface of the premises immediately about the building is to be finished, it being at least 6 inches above the general grade of the site, the ground to be made sloping away from the building on all four sides.

Fill in around foundation walls and minor walls after the cement is dry and walls are scaffold high above first-floor level, and fill in all pipe trenches. All filling to to be well rammed and puddled; in case of pipe trenches, every foot in height to grade line. The trenches for concrete to be cut exact depth and width of concrete base, and if cut wider and deeper than required they must be filled solid with

concrete.

CEMENT AND SAND.

All cement to be used upon this building will be furnished to the contractor by the District of Columbia, at its property yards in bagsthe bags; to be returned by the contractor or charged against him at the rate of 10 cents each. All natural cement used shall be that known under the District specifications as Class B. The cement furnished to the contractor will be charged against him at the rate of $1 per barrel for natural cement, Class B, and $2.50 per barrel for Portland cement. The sand is to be as sample in inspector of buildings' office.

Concrete footings.-All concrete footings to be of thickness shown and 12 inches wider than thickness of wall resting on same, and composed of natural cement one

part, clean sharp sand two parts, and broken stone in 2-inch cubes four parts-all to the required standard of the engineer department. The same to be thoroughly incorporated and deposited in trenches in layers, and rammed until the cement is flushed to the top. Level off and leave undisturbed till thoroughly set. protection to be given to prevent freezing, as may be directed. Any concrete affected by frost or damaged in any way must be removed.

Proper

Concrete floors.-The contractor to lay a bed of concrete 4 inches thick over basement floor at the proper level, and at bottom of manholes of steam conduit, areas, etc. The basement and area floors to be finished with a top coat of pure Portland cement and sand 1 to 14, well rubbed in before concrete is set and blocked off in squares, as required for similar work in surface department. All portions to be troweled smooth. Concrete for all this work to be composed of natural cement one part, clean sharp sand one part, and clean branch gravel two parts, and to be properly graded to cesspools.

The floor of the open-air cross corridor in both first and second stories to be of concrete, filled in top of the hollow tile segmental arches, and finished with Portland cement as above specified, great care being taken to make a perfect joint at junction of walls and floor and everywhere about stairways.

The contractor will tear down at point indicated on plat, sheet No. 14, as much of brick wall as may be necessary to give easy access to the premises from E street southeast, and all excavated material, etc., is to be taken out at this point. This specification does not call for any outside paving or grading other than a cleaning up and general smoothing of the ground surface, and leaving everything in the same condition and as good as before work was begun.

BRICKWORK.

All brickwork is to be laid up in dimensions as shown with brick and mortar as specified, with all joints tight and solid, and neatly struck or pointed as specified. All brick to be laid wet in dry weather and dry in freezing weather, as per building regulations. All brickwork to be well bedded, tied in every fifth course, worked in regular bond with full flush joints, except where otherwise specified. All walls and piers are to be made level, to come up to an exact height, to have all necessary openings shown; all offsets to bring the walls to the proper thickness on each story are to be made at the tops of beams. Bed all frames solidly, underpin all sills with mortar after the walls have set, point close to all openings and projections; build brick discharging arches over all openings, all brickwork to be carried up simultaneously. Carefully back up all stone and tie in the same; turn arches over all necessary openings in foundations for all pipes, etc.; fill solidly in between all timbers. Build wood blocks in brick work when necessary to give nailing for frames, architraves, etc. Leave openings, as shown, in foundation walls, to enable passage from one part of building to another.

Brick footings.-All footings to be constructed and stepped up as shown on drawings, using good, straight, sound arch brick, bedded and jointed solidly in cement. Foundation walls.-All foundation walls to grade line and brickwork about manholes and area walls are to be constructed of straight, hard-burned arch brick laid in cement mortar, bonding the work every fifth course. All surfaces of walls below grade coming in contact with the earth to have the joints neatly struck. Basement walls to be plastered on outside from footing to grade line with Portland cement one-half inch thick.

Main walls. All walls above grade line to be constructed of straight, sound, wellburned brick laid in lime mortar, joints to be struck, except where otherwise specified. No salmon or soft brick will be permitted to be used, and for every such brick found in the walls the contractor shall forfeit to the District the sum of $5. The fireplace fronts, hearths, sides, and backing to be of selected red pressed brick and to be constructed simultaneously with the other work; tuck joints, white mortar. All partition walls to be carried up to underside of roof boards.

Erterior walls.-All exterior walls, chimneys, open-air cross-corridor walls, and porte-cochere, both inside and out, parapet walls, and vestibules are to be laid up with hand-made selected red brick, as per sample in the office of the inspector of buildings, with neatly struck joints, not exceeding one-fourth inch in thickness, all joints to be colored with Pecora brown mortar color, or equal, all to be approved by the inspector of buildings before being put in place. The exterior surfaces of all walls as above specified will show a heading course to every five courses of stretchers. The recessed panels and pierced work of parapets will be carefully done, as shown. The Greek fret forming frieze to front of building to be done in the most workmanlike manner, especial care being taken to make the pattern work out exactly.

Jack arches and other arches.-All jack arches and other arches over door, window, and other openings to be of selected press brick, as per sample in office of the

inspector of buildings. These brick to be ground to the true radins given and set with white mortar tucked joints, not over one-eighth inch in thickness and neatly tooled. The bricks forming the Greek fret pattern to be press brick similar to the arch bricks. Over all windows behind the jack arches and over locker openings there will be relieving cast-iron lintels, as shown. Over all other openings there will be relieving arches of brick. The jack arches to have camber of one-fourth inch to the foot.

Molded bricks.-All molded and ornamental brick shown on drawings, except those capping out chimneys, to be those of the Philadelphia and Boston Face Brick Company's make, or equal thereto, and to be of the catalogue numbers, as shown. These molded and ornamental brick will be gray in color. Samples of these brick to be submitted to the inspector of buildings immediately after acceptance of bid.

Reveals.-Reveals of windows will show 4 inches of finished brickwork outside of hanging stiles. The brickwork over window openings will be supported back of the press-brick jack arches on cast-iron lintels.

Water-table course.-The water-table course will consist of gray molded brick, Philadelphia and Boston Face Brick Company, of numbers shown, or equal thereto. Chimneys.-Construct the chimneys as shown on the drawings. The chimneys must be built entirely clear of the framing, all flues to run to the top independently. All flues to be as shown and smoothly plastered inside from bottom to top. The bricklayer will leave openings, carefully made, in all flues where indicated, one near the floor and one near the ceiling line of each story, for the ventilating registers. Chimneys above roofs to be of same brick as for exterior walls. The molded cap and plinth on top to be of the catalogue number shown. The bricks above the flue openings to be supported on a layer of heavy building slate bedded in cement. The chimneys to be capped on top with a similar layer of building slate, with a thick layer of pure Portland cement on top, nicely graded to shed the water. Bricks topping out chimneys to be laid in pure cement. The projecting crown mold of chimney to be protected on top with cement sloped back to shed water. In each of the ventilating flues of all wards, toilet rooms, etc., having direct, indirect radiators, as marked on plans, build in cast-iron frame door, etc., 8 by 8 inches, same as over fireplaces, to be located at a point above lowest ventilating register opening. Fireplaces. The fireplaces to be faced with red press brick, as shown, the backing and hearths to be of similar material, all laid in cement, with tucked joints not over one-eighth inch in thickness. This brick work to be thoroughly bonded to the backing and to be constructed simultaneously with the other work and to be carefully protected by boards from damage.

Form the fireplaces with arches, ground to radius shown, on wrought-iron bars turned up at each end. Bars to be three-eighths by 14 inches. Turn trimmer arches to all hearths and level up to receive finished brick hearths.

Over each fireplace build in cast-iron frame 8 by 8 inches. Frame to have door with catch and knob.

Mantel shelf to be of slate with 10-inch projection and returned at ends to form stop for plaster. Shelf to have molded nosing and to be 1 inch thick.

Manholes.-Build brickwork about two manholes shown on plat. The manhole to consist of an upright vitrified terra-cotta pipe 2 feet in diameter, set on a cement foundation 4 inches thick. This upright pipe to be intersected by two lines of 18inch vitrified terra-cotta pipes at right angles to each other. The brickwork to be built up to surround and brace the points of intersection so as to make a tight joint. All the brickwork to be laid in cement. Manhole to have wrought-iron cover placed on top and made water-tight.

Areas.-Construct the areas, as shown, of arch brick, the walls to be 13 inches thick, laid in cement and coped with granite coping, bush-hammered six-cut work. Coping to be 1 inch wider than wall it rests upon.

Brick sills.-Brick sills, where shown, to be laid in cement mortar, colored to match the other joints.

Steps. Prepare for steps in north vestibule by turning segmental arches of brick 4 inches thick on the rake of the steps. Fill in on this vaulting and form brick risers for steps, the treads to consist of rubbed bluestone 3 inches thick, slightly projecting over face of riser.

Terra cotta.-Furnish and set the terra-cotta work as shown on the scale and detail drawings. The terra cotta to exactly match in color the sample submitted, all in strict accordance with detail drawings. Material for all terra cotta to be carefully selected clay left in perfect condition after burning and uniform in color. All pieces to be perfectly straight and true and with mold of uniform size where continuous. No warped or discolored pieces will be allowed. The contractor to furnish a sufficient number of overpieces, so as to avoid all delay. Terra cotta to be ordered immediately after contract is signed.

Modeling. All work shall be carefully modeled in strict accordance with detail drawings.