| Show THE TilE PENNSYLVANIA J ROADS ROAD'S TUNNELS TUN- TUN NELS ELS New York Tribune Work ork on the tunnels which will wi give the Pennsylvania road direct access to New ew York Cf City has reached an interesting stage T e The removal of ot earth along the route rOUle of o the twin tubes under the Hudson has advanced 80 so rapidly that It I can cnn probably be I completed In a few fei days days Between the headings in and this cl city from which excavation ha has been pushed tho the distance is feet Ceet or more mure and the engineers report that the Interval between the approaching ends of ot the tubes Is only about 1 5 feet Tunneling however Involves In much more than digging and blasting and giving to the passageway under construction construction con con- a waterproof lining The Tho most delicate and responsible part of the task Is Js aiming the bores with wih such accuracy that the they will wi fit f It p perfectly when they meet The skill ski with wih which this feature of the work under the Hudson has haa ha been prosecuted Is largely a matter mater of conjecture but doubt will wi soon be removed A test Is about lobe to lo tobe tobe be applied which Is available only when there aro arc two tubes Already that portion of tho the southern tunnel which has haH been b en pushed from the New Jerse Jersey shore overlaps o the portion of the northern tunnel from New York and the lateral distance between them ought not to be more moro than fourteen feet Hence by thrusting pipes Ipe through the he mud from Crom one to the theother theother other measuring their length and comparing the height of ot their respective live tive lve ends above the bottoms of the tho tunnels tunnel valuable Indications should b bo obtained It I should thus be possible to anticipate the actual junction of the thE tubes under the river bed and anti also to tomake tomake tomake make such deflections In iii in the course cours pursued thereafter as to Insure a satisfactory result resul Only a few weeks are arc now needed apparently for fo the virtual virtual completion completion comple comple- tion ton of or a North River section of the Pennsylvania company's tunnels but buta a great grent deal more must be done done- dOne be before before before be- be fore this will viii wi be of or any use Leaving out of consideration th the rock c cutting on on Manhattan l Island nd from the thO site of or orthe the proposed station staton on the tho West Vest Side Sile and also the opening of or the East River tunnel to Long Island CI City there still sll remain three important undertakings to be consummated The he station Itself must bo be constructed and pas passages ages must be bo cut between It and the river riverfront riverfront riverfront front and under Bergen Hill HUI each ach of or them a mile mie lon long before there will wi be bea ben a n continuous route for tracks from this city to the existing system of the company These improvements will wi hardly hardi be finished within the tho next two or three years ears and there Is ample amplo time to make alterations und under r the Hudson ludson If the need of any any should be revealed In the next few da days das s. s It is said sid that this section of or the th underground route of or the Pennsylvania Pennsylvania Pennsyl Pennsyl- vania company compan has ha been virtually finished almost a year ahead of contract contract contract con con- tract time The statement is probably probably probably ably true but in some r respects the contractors had hada a a comparatively cas easy Job Tho The silt sit of which tho the bed of oC the Hudson Is composed Is not only soft I but homogeneous In fn texture from shore to shore The Eat East River bed between Thirty fourth street and Long Island Iland CI City contains n a variety ot Df material sand material material sand cia clay gravel gra and ond Moreover r the u upper per sur sun surface surface face appears to be exceedingly Ir Ir- Ir regular These two Inequalities ha have embarrassed the engineers who are areat areat areat at work in that locality and it I is uncertain uncertain uncertain un un- un- un certain evel yet et whether the ties which have been encountered tes there have been fully CulY overcome Still Sti there Is little occasion for fol hurry hUrlY The I utilization of the East Basl River tunnel l Is Isas Isas isas as dependent on the tho com completion pic lon Of at the crosstown tunnel and tho the West Yest Side station as Is that of the North River t tunnel U n ii ci |
