Show the st louis louls bridge the dimensions of thelridge the bridge exceed that of any similar structure in existence true suspension bridges have been built with spans of over 1030 1000 feet but no arch the most roost substantial of all bridges has a span of festas feet as the conter conten center centen arch of this bridge lias has while on either bido sido ido side P is a span of feet the whole length of the bridge and its approaches is feet the foundation ot of the eastern abutment dier pier had to be sunk to the eno enormous rinous depth of feet 6 0 inches lelow below low water mark before it could rest on the solid rock by an ingenious andee believe belleve novel arrangement of the immense steel tubes which form the arches and support the road foad roadways ways above the principle of expansion and contraction by heat beat and cold is so taken advantage Z 0 of r that in hot weather the tee expansion will throw the burden of support on one set of these tubes while the i others will wil be released and maybe to removed oved in case of repair baing needed and replaced and the contraction during cold weather wea will so relieve the other set that they in turn may be removed the bridge is in two stories stones the lower noor hoor carrying double railroad rafi raff road tracks the upper a magnificent highway 75 feet wide on which are four tracks for street railroad cars or ordinary vehicles and oil on each side a capacious road for foot passengers the whole cost including the tu tunnel neiel which though made by another company is virtually part of the bridge is about when the whole scheme is completed the bridge the tunnel under the city and alid h a union depot erected in millcreek Mill creek valley tile the convenience and certainty with which western terji connections can be made must add greatly to the business of st louis louls our |