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Office of the Division Engineer UPPER MISSISSIPPI VALLEY DIVISION 1124 Syndicate Trust Building 915 Olive Street St. Louis 1, Missouri APPENDIX A TO DIVISION BULLETIN No. 2 DESCRIPTION OF NAVIGATION CONDITIONS ON MISSISSIPPI RIVER BETWEEN THE OHIO RIVER AND THE GULF OF MEXICO FOREWORD Due to numerous inquiries received by this office for informa- tion concerning general navigation conditions on the Mississippi River below the Ohio River as a part of the Lakes-to-Gulf Water- way, it has been thought advisable to issue this appendix. This lower section of the river is outside the jurisdiction of this office and arties desiring more detailed information should communicate with the proper authorities as listed in Division Bulletin No. 2. The information contained herein has been, in general, obtained from the President, Mississippi River Commission, P. O. Box 80, Vicks- burg, Mississippi, who is also Division Engineer, Lower Mississippi Valley Division. oe Cairo, Illinois, to Baton Rouge, Louisiana. The navigation chan- nel of the Mississippi River between Cairo, Illinois and Baton Rouge, Louisiana, is now approximately 737 miles. Navigation in this section of the river is safe and easy throughout the year, with exception of periods when the upper portion of this reach contains floating ice and during seasons of exceptionally low stream flow, when for brief periods some difficulty is experienced by large tows. Between Cairo, Illinois and Vicksburg, Mississippi, the project channel 9' deep and 300' wide is maintained. Between Vicksburg, Mississippi and Baton Rouge, Louisiana a channel at least 11' deep and more than 800' wide is available throughout the year, except during lowest unusual stages when the project channel (9' x 100') is maintained. From December or January to June or July, when high stages of river generally prevail, a navigable channel of at least 14' depth and ample width is available from Cairo, Illinois, to Baton Rouge, Louisiana. The range between high and low water is 60.5' at Cairo, Illinois, 58.0' at U. S. Engineers' gauge at Beale St., Memphis, Tennessee, and 59.7' at Natchez, Mississippi. Maximum current velocities, which occur during the period of high stages, may be as great as 6 miles per hour. Velocities of 8 to 9% miles per hour in short stretches of constricted reaches and at bridges have been observed during extreme high-water period. At low-water stages, current velocities range from 2 to 3% miles per hour. The navigation channel is maintained by performing main- tenance dredging through the crossing bars during low water and by snagging operations to remove snags from the channel. Main- tenance of the navigation channel is also aided by the stabilization of caving banks, usually with articulated concrete revetment; con- struction of pile dikes to contract the channel and improvement dredging to correct channel alignment. Six fixed bridges cross the Mississippi River between its con- fluence with the Ohio River directly below Cairo, Illinois and Baton Rouge, Louisiana; two located at Memphis, Tennessee, one at Green- ville, Mississippi, one at Vicksburg, Mississippi, one at Natchez, Mississippi, and one directly above Baton Rouge, Louisiana. Con- trolling clearances are 59.5' above extreme high water at Vicksburg, Mississippi and 770' horizontally at Memphis, Tennessee. _ Baton Rouge, Louisiana, to Gulf of Mexico. This section of the Mississippi River, a distance of 249 miles by Southwest Pass, is navigable throughout the year. _ Information on current navigation conditions on the Mississippi _ River between Cairo, Illinois and Baton Rouge, Louisiana is issued _ Weekly during the low water season and as necessary during high _ water by the District Engineers, Memphis, Tennessee, Vicksburg, _ Mississippi and New Orleans, Louisiana through the Engineer De- _ partment "Navigation Bulletins." These bulletins may be obtained _ Upon request to the District Engineers or the President of the Mississippi River Commission, Vicksburg, Mississippi. The Presi- ent of the Mississippi River Commission also issues annually a folio of navigation maps covering the Mississippi River from Cairo, Illi- _ 'hols to the Gulf of Mexico, showing the general outline of the navi- | gation channel and approximate location of the shore aids to navi- joe These maps may be purchased from the Office of the Presi- dent, Mississippi River Commission, Vicksburg, Mississippi on the Uistrict Engineer Offices at Memphis, Tennessee, Vicksburg, Missis- _Slppi and New Orleans, Louisiana. ee | | | 235 COAST-GUARD LIFEBOAT STATIONS Maintained by the United States on the Great Lakes, Including Canadian Life-Saving Stations. LAKE SUPERIOR Duluth, Minn.--On Min 5 1 : Duluth Ship Cu Point, about % mile southerly from Eagle Harbor, Mich.--On east side of harbor. a Marais, Minn.--At south end of gravel pit on east side of arbor, oo Marais, Mich.--West of harbor entrance. i Mich.--Near inner end of U. S. breakwater, near light. e unising, Mich.--On south side of Sand Point. ortage, Mich.--Near the lake shore on easterly side of northerly end of the Upper Canal, Keweenaw Waterway. Vermilion, Mich.-- Ten miles west of Whitefish Point light. Bie so Point, MichAbout 800 feet ENE. of Whitefish Point LAKE MICHIGAN Beaver Island, Mich.--Near St. James light in harbor, north end. Calumet, Ill.--See South Chicago. Charlevoix, Mich.--South side of Pine River entrance to harbor. Chicago, Ill.--One _on west side of yacht harbor, Jackson Park. One on south side of entrance to Chicago River, at north end of inner breakwater. See also South Chicago. Frankfort, Mich.--North side of entrance to harbor. Grand Haven, Mich.--North side entrance of Grand River. Holland, Mich.--South side entrance of Black Lake. Kenosha, Wis.--In the harbor, on Washington Island, east side. Kewaunee, Wis.--North side of entrance to harbor. Ludington, Mich.--North side of entrance to harbor. Manistee, Mich.--N orth side of entrance to harbor. Michigan City, Ind.--Kast side of entrance to harbor. Milwaukee, Wis.--In McKinley Park, north end of north breakwater. Muskegon, Mich.--South side of entrance to harbor. Plum Island, Wis.--Near northeast point of island, about 2% miles northwest of Pilot Island Light. Racine, Wis.--North side of Root River, near light. St. Joseph, Mich.--North side of harbor entrance. Sheboygan, Wis.--Near inner end of old north pier stub. roe ie Ill--On lake front in southerly part of Calumet ark. wae ie Island, Mich.--Southeast side of island, %4 mile north of light. Sturgeon Bay Canal, Wis.--At easterly entrance, on north side. Two Rivers, Wis.--North side of entrance to harbor. Wilmette, Ill.--North side of harbor entrance. LAKE HURON Bois Blanc Island, Mich.--At Walker's Point, east side of island. Hammond, Mich.--On east point of Hammond Bay. Harbor Beach, Mich.--In the water to the west of the northerly end of the dredged anchorage area. Mackinac Island, Mich.--In the northwesterly part of harbor. Middle Island, Mich.--On north end of the island, about % mile northwest of light. Port Huron, Mich.--On west side of entrance to St. Clair River, near Fort Gratiot Light. Southampton, Ont.--On the east breakwater, opposite Chantry Island. Tawas, Mich.--Near the lighthouse. Thunder Bay Island, Mich.--On the west side of the island, about 5 mile west of light. : Detroit River--At Belle Isle Light, near upper end of the island. LAKE ERIE Ashtabula, Ohio.--East side of harbor, 400' north of bridge. | Buffalo, N. Y.--On the south pier at the mouth of Buffalo River. Cleveland, Ohio.--On the west pier, entrance of Cuyahoga River. Erie, Pa.--On north side of entrance of Erie Harbor. Fairport, Ohio.--On west side entrance of Grand River. Lorain, Ohio.--East side entrance of Black River. Marblehead, Ohio.--On Point Marblehead, near the quarry docks. Point Pelee, Ont.--Near the south extremity of the point. LAKE ONTARIO Charlotte, N. Y.--East side of entrance to harbor. : Fort Niagara, N. Y.--East side of entrance to Niagara River. Galloo Island, N. Y.--In Gill Harbor, east side of northerly end of island. Oswego, N. Y.--West side entrance of Oswego River. : Toronto, Ont.--At the north side of harbor. Sub-stations at various points on water front.