The connecting bays and inflowing rivers are being provided with navigable channels of 200, 300 and 500 feet in width. Hillsboro Bay and river and Manatee River are navigable for several miles. Saint Petersburg is on the west shore of Tampa Bay eight and three-quarters miles from Port Tampa. That part of the bay is called Bayboro Harbor connected by a channel 200 feet wide and 10 feet deep with the wide waters of Tampa Bay. Its tonnage in 1917 was 22,151 tons. Clearwater Harbor eight miles long and from one-half to one and three-quarters miles wide and Boca Ceiga Bay are shallow sounds hut navigated by small vessels. The lower reaches of Anclote crystal. Withlocoochee and Suwannee rivers are navigable for small vessels. The latter has been improved up to Ellaville, 135 miles above its mouth, and has a channel 150 feet wide and five feet deep for the first 75 miles, and one 60 feet wide and four feet deep for the remaining 60 Alabama — The Montgomery, Ala , dis trict includes 18 rivers and harbors Carra belle Harbor, Apalachicola Bay and river, the lower and upper Chipola, Flint and Chatta hoochee rivers, the canal 36Y2 miles long con necting Apalachicola River, which is a large stream, and Saint Andrew's Bay and the en trance to Saint Joseph's Bay are all navigable waterways with channels of different widths and depths. They are being improved. Choc tawhatchee Bay, 20 or more miles long, is navi gable. Choctawhatcbee River has a navigable channel from its mouth up to Geneva, Ala., a distance of 96 miles. Its tributary, the Holmes River, is to be made navigable from its mouth up to Vernon, a distance of 25 miles. Black water River will have a channel 100 feet wide and nine feet deep up to Milton, a distance of 10 miles. Escambia River, miles long in Florida, and Conecuh, 235 miles long in Ala bama, is the same river and is to have a navi gable channel from its mouth to Patsaliga Creek, a distance of 147 miles, unless the pres ent project be modified.
Pensacola Harbor is 13 miles low and is five miles wide. It joins Escambia, East and Blackwater hays and Santo Rosa Sound on the southeast. Pensacola Harbor has a channel 500 feet wide from the Gulf of Mexico and 28 feet deep. It is equipped with several wharves, a terminal railway and warehouses. Its tonnage in 1917 was 524,058 tons. The Alabama River formed by the confluence of the Coosa and Tallapoosa rivers, miles above Montgomery, unites with the Tombigbee River, 44 miles above Mobile. to form the Mobile River. The Alabama, whose width is from 400 to 700 feet, and Coosa rivers are being improved so as to have a continuous channel four feet deep up to Wetumpa on the Coosa, a distance of 321.6 miles. Vessels of three feet draft may now navigate the river all the year as far as Montgomery where there are some terminal facilities and whose port tonnage in 1917 was 94.356 tons. The Coosa River, formed by the Oostanaula and Etowah rivers, is being im proved by the construction of a channel 100 feet wide and four feet deep and of seven darns and seven locks 40 to 52 feet wide and 176 to 280 feet long at various points, rendering the river navigable for miles above its mouth, 22' "i miles above Montgomery. Its tonnage in
1917 was 15,744 tons.
The Mobile, Ala., district includes 14 risers and harbors. Into Mobile Harbor flows Mobile Riser. A channel 300 feet wide and deep has been constructed from the ocean up Mobile Bay for miles to the riser and thence up Mobile Riser in front of the city of Mobile for fise miles to Chickasaw Creek. In the bay it is 200 feet wide and in the river 300 feet wide. Wharves and piers line the west shore of Mobile Riser for two and one-fourth miles. The city owns a wharf and pier in the upper end of the bay 8,300 feet long and 300 feet wide. Mobile tonnage in 1917 was 1,816.284 tons. Black Warrior River, a tributary of the Alabama Riser, has been dredged. and 17 dams and 18 locks has e been c(mstructed to afford slackwater nasigation for 332V, miles from its mouth to Sanders Ferry on the Mulberry Fork of the Black WArrior Riser and to Nichol) Shoals on the Locust Fork of the same riser. The entire length of the section to be improved is miles to Sanders Ferry and 42354 miles to Nichols Shoals. The channel is 1()3 feet wide and six feet deep. The locks are 52 feet wide, about 282 feet long with a depth of six and one-half feet of water over mitre sills. The tonnage on that part of the improved waterway in use in 1917 was 580,728 tons. The Tombigbee River is shallow, having a channel two feet in depth, though in some sections it is six feet deep and all the way 100 feet wide from Demopolis to its mouth, a distance of 185 miles. In 1917 the tonnage thereon was 445,458 tons. Front Demopolis, Ala, to Columbus, 149 miles, which is 230 miles from its mouth, the Tombigbee is to have a channel six feet deep by dredging and by the construction of dams and locks. From Columbus to Walkers Bridge, 169 miles, it is to have a high-water channel, which is more or less hazardous.
Mississippi and Louisiana— Pascagoula Harbor and Gulfport Harbor have both been improved, the former having a channel 300 decreasing to 153 feet in width and a depth of 25, decreasing to 22 feet in depth four miles up Dog River. It had a tonnage in 1917 of 199,817 tons and the latter (Gulfport Harbor) has a channel 26 feet deep and 300 feet wide made through Slip Island Pass and one 19 feet deep and 1,320 feet wide for an anchorage basin one half mile long. It had a tonnage in 1917 of 345.688 tons. Both ports have limited terminal facilities. Leaf and Chickasahay rivers have been cleared of obstructions and are navigable, the former for low water navigation 78 miles above its mouth and the latter for rafts 75 miles above the outlet. Those two rivers unite to form the Pascagoula River flowing into Mississippi Sound. That river has a channel of seven feet depth from the mouth of Dog River to Dead Lake. 32 miles and of three feet depth above that point for tO miles. Biloxi Harbor, Saint Louis Bay, Wolf, Jordan, East including ncluding Lake Borgne, and Pearl rivers near the Gulf of Mexico have been d and are navigable for vessels of small dredged but different draft for limited distances. Pearl River is to have a navigable depth of two feet from its mouth to Rockport, a distance of 246 miles.