The Alaska daily empire., 1916-08-08
Engineer Hall of the Road Commission is Now in Juneau to Complete
 His Work.
PLANS BIG STRUCTURE
Bridge To Be One of the Worlds Famous Ones To Be
 Proud of.

Oliver A. Hall. designer and en. gineer for the Alaska Road Commis- sion, with headquarters at Valdez. arrived in Juneau on the Mariposa and will look over the proposed site for the Gastlneau Channel bridge between Juneau and Douglas Island with a view of determining the most economical method of handling ma terial for its construction and to make estimates Of cost
 This bridge, when completed, will be one Of the notable bridges of the world. of Q long span over what on the surface appears 10 be shallow mud flat. but which in reality Is a deep channel Of approximately 100 foot depth. necessitating main cen. tral channel span slightly over 500 feet long.
 When completed 1t will be struc- mre Of which Juneau will be proud. Serving as it will. Juneau and it's rapidly growing urban popu. lation with Douglas Island and its mining and industrial interests. and placed in such a position as to be the most prominent object seen by all steamers entering the channel, 1t will be the means of focusing the attention of tourists and others on Juneau in a way that cannot but be beneficial to the city and it's inter ests.
 The Alaska Road Commission. with Col. W. P. Richardson as it's presi- dent. is putting forth its best efforts to see this bridge built. The first cost of same. in order that it may be permanent fixture and capable of taking care of any loading that will possibly come upon 1t during che next fifty years. will undoubtedly necessitate a special appropriation from Congress. and the enthusiastic support and cooperation of the peo- pie of Juneau and Douglas Island with the Alaska Road Commission will be a great help in seeing this project brought to a successful con- clusion.
 MT. Hall is now preparing complete plans and specifications for this bridge and will upon his return 10 Valdez complete final estimates Of cost which will be submitted by Col. Richardson to the War Department and to Congress this coming winter.
 Some features of the proposed Gas tlneau Channel Bridge which may be of interest. are as follows:
 Main channel span, 5O1 feet cen ter to center of end pins. Depth Of trusses, center to center of bottom and top chords. 70 feet Total weight of steel and iron work in main channel span. about 100000 pounds.
 Provision is made for a street car track through the center Of the bridge. with two automobile and high way roadways on cantiIeyer brack- cts outside the trusses.
 The deep channel at the proposed site for this bridge precludes its erection in position on its piers as is the usual practice. This bridge will have to be erected complete on falsework placed near the shore on the tide plats. and when the bridge has been completely riveted up, bar ges will be floated lnder it, 1t will then be lifted and floated out into the stream and to it's final position over the piers This in itself will be an interesting feature in con nection with this bridge for the reason that but few bridges have heretofore been erected by this met bod and none of the size and weigh ing as much as will this one. Single pieces Of the upper chord members for this bridge weigh about SS tons each.
 Mir Hall will remain in Juneau for several days before returning to Valdez. He is at the Gastineau iio tel.
 --o--o--e-
 ..~--, .t AL .. an tt,,