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report to the Congress, in the absence of evidence showing that the
HENRY L. STIMSON,
Secretary of War.
Washington, January 13, 1944.
1.1.1 House of Representatives, Washington, D. C. MY DEAR MR. CHAIRMAN: 1. The Committee on Rivers and Harbors of the House of Representatives, by resolution adopted April 24,3 1941, requested the Board of Engineers for Rivers and Harbors to review the report of the Board of Engineers for Rivers and Harbors dated February 8, 1938, and transmitted to Congress by the Secretary of War, March 5, 1938, on Mississippi River at Minneapolis
, Minn. with a view to determining whether any modification in the existing project is advisable at this time. I enclose the report of the Board in response thereto.
2. I concur in general in the views of the Board and recommend modification of the project for the improvement of the Mississippi River at Minneapolis as follows:
Mississippi River, Minneapolis, Minn.: Extension of the 9-footextil channel of the upper Mississippi River navigation project to the vi-fonR cinity of the Soo Line railway bridge above the Falls of St. Anthony, in Minneapolis, in general accordance with the plans described and sud approved by the Board of Engineers for Rivers and Harbors and suppi the Chief of Engineers in their reports of February 8 and February and 26, 1938, respectively, as subsequently modified by the reports printed onde in Senate Document No. 54, Seventy-seventh Congress, first session, suppl to provide for a vertical bridge clearance of 26 feet above the estimated to t 40,000 cubic feet per second stage, the railroad bridges and other and privately owned utility structures to be modified at Federal expense vir at an estimated first cost to the United States of $8,259,000, with thad $55,000 annually for maintenance and operation of the navigation eines works; subject to the conditions that local interests contribute seljatia an 100,000 to the first cost of the improvement as a whole and provided this that responsible local agencies furnish assurances satisfactory to the the Secretary of War that they will: (a) Make the necessary alterations at the to highway bridges and publicly owned utilities, (b) furnish free of the surfa cost to the United States all lands, easements, and rights-of-way neces per me sary for the channel and lock and dam construction, and (c) furnish per il at their own expense suitable spoil disposal areas for the new work and for subsequent maintenance when and as required. Very truly yours,
REPORT OF THE BOARD OF ENGINEERS FOR RIVERS AND HARBORS
Washington, December 13, 1943.
1. This report is in response to the following resolution adopted April 24, 1941: Resolved by the Committee on Rivers and Harbors of the House of Representatives, United States, That the Board of Engineers for Rivers and Harbors created under sertion 3 of the River and Harbor Act, approved June 13, 1902, be, and is hereby, requested to review the report of the Board of Engineers for Rivers and Harbors dated February 8, 1938, and transmitted to Congress by the Secretary of War,
March 5, 1938, on Mississippi River at Minneapolis, Minn., with a view to deterbrz i mining whether any modification in the existing project is advisable at this time.
2. The Mississippi River rises in northern Minnesota and flows musoutherly about 2,450 miles to the Gulf of Mexico. Minneapolis is op: 0; located on both banks of the river in southeastern Minnesota at the
Falls of St. Anthony. About a mile below the main falls the river is i sada crossed by the lower Northern Pacific Railway bridge in Minneapolis, i tb 853 miles above the junction of the Mississippi and Ohio Rivers.
This junction is the zero of the mileage system for this report. The
Missouri River enters the Mississippi 195 miles above the mouth of proje" the Ohio. Congress, by the River and Harbor Act approved July 3, * 1930, and subsequent acts, has authorized improvement of the de Mississippi River for navigation between the mouth of the Missouri ani E River and the lower Northern Pacific Railway bridge in Minneapolis Fazito provide a channel of 9-foot depth by the construction of locks and hindams supplemented by dredging. The improvement has been com
pleted to the extent that project depth is maintained between its wird head and the lowermost lock and dam, a short distance above the
Missouri River. Within Minneapolis this section of river flows Fi through a deep gorge in which little land is suitable for river terminal
improvements. The Minneapolis municipal terminal is located in this area and is restricted in its use and further development by the
limitations of the site. Above the lower Northern Pacific Railway esa bridge, the river channel is obstructed by a rapids section 0.4 mile song, at the head of which the lower St. Anthony Falls Dam raises the
water surface about 20 feet and creates a pool 0.6 mile in length. At the upper end of this pool, St. Anthony Falls proper is surmounted by
upper dam which creates a second pool 49 feet above the lower pool. Neither dam provides for the passage of navigation, Upstream from the falls natural physical conditions are favorable for improvement of a channel for navigation and development of terminal facilities for river traffic.
3. By the River and Harbor Act approved August 26, 1937, Congress authorized extension of the 9-foot project channel to above the Falls of St. Anthony as follows:
Mississippi River, Minneapolis, Minn.: Extension of the 9-foot channel above St. Anthony's Falls in accordance with the plan contained in House Document numbered 137, Seventy-second Congress, first session; subject to such changes therein as may be found advisable by the Chief of Engineers, and the final approval of the plan by the Board of Engineers for Rivers and Harbors, as necessary to provide adequate terminal facilities for Minneapolis. Accordingly the district and division engineers formulated a plan providing for a channel 9 feet deep and generally 150 feet wide extending from the lower Northern Pacific Railway bridge upstream to the Soo Line railway bridge, mile 857.6, near the northern limit of the city of Minneapolis, widened to 500 feet for a distance of 1,000 feet below the Lowry Avenue bridge to provide a turning basin, and for a lock with chamber 56 by 400 feet and lift of approximately 24 feet at the lower dam and lock of similar chamber dimensions and lift of about 50 feet at the upper dam. Plans for the 12 bridges involved proposed removal of 1, pier protection at 4, installation of movable spans in 2 and alteration of 5 others to provide a vertical clearance of 26 feet above high water of 1881 and 150 feet horizontal clearance except where the cost of obtaining this full horizontal dimensions would be excessive. The Board of Engineers for Rivers and Harbors in its eitl report of February 8, 1938, now under review, approved this plan for a bee construction at an estimated cost to the United States of $7,779,000 filing for new work, with $55,000 annually for maintenance, provided local interests give assurances satisfactory to the Secretary of War that they ledu will bear the cost of necessary bridge modifications and adjustments to utility structures estimated at $1,774,000 and furnish free of cost to the id t United States all lands needed for the improvement and suitable spoil disposal areas for new work and for subsequent maintenance as re-ther quired. Concurrently the Chief of Engineers stated that the plan had his approval "and that in view of the terms of the item of law prica quoted above no further action by Congress appeared to be necessary.
4. Subsequently the Committee on Commerce of the United States Senate, on January 25, 1939, adopted a resolution requesting a review of the Board's report of February 8, 1938, with a view to determining the whether any modification of the requirements for bridge clearances was advisable. The resulting review reports have been printed Senate Document No. 54, Seventy-seventh Congress, first session. The high-water profile used in the report of 1938 as a reference plane for determining the required heights for bridges was based upon a discharge of 73,500 cubic feet per second as experienced in 1881. In reviewing the report, the district engineer found that it would be impracticable and dangerous to navigate this section of improvement to with flows of more than 40,000 cubic feet per second. He therefore proposed that the vertical bridge clearance be made 26 feet above the water surface elevation with that flow, thus lowering the required bridge elevations by from 2.8 to 4.3 feet. He reconsidered the bridge changes and costs for providing the required vertical clearance above the flow line for the 1881 discharge and prepared a plan for bridge changes based upon a discharge of 40,000 cubic feet per second. The
. has be
131 general bridge changes and estimated first costs thereof for these two Del to plans as presented in Senate Document No. 54 are tabulated below:
Northern Pacific 853.00 Railroad.. Pier protection.
Third Avenue 853.95 Highway None.. it do Hennepin Ave- 854. 20
Pier protection. Ofe? Great Northern... 854.40 Railroad. Provide movable
span. itable Lowry Avenue. -- 856. 45 Highway. Raise
Under either plan the Great Northern railroad bridge, at mile 854.4, would be equipped with a movable span.
Under the plan based upon sw providing 26-foot clearance above the flow line for 40,000 cubic feet
per second, the Northern Pacific bridge at mile 855.8 would not be provided with a movable span. It is estimated that the annual costs for maintenance and operation for each of these bridges would be increased by $6,000 if converted to movable span structures and that the maintenance costs of the remaining bridges would not be increased. For either plan city-owned sewers, water mains, and pumping plant intakes would require alterations at an estimated first cost of $46,000 and a privately owned submarine power cable would need to be lowered at an estimated cost of $48,000. In the reports printed in Senate Document No. 54, Seventy-seventh Congress, first session, the Board of Engineers for Rivers and Harbors and the Chief of Engineers approved the plan for bridge changes to provide 26 feet vertical clearance above the flow line of 40,000 cubic feet per second discharge and stated that in view of the terms of the act authorizing the project no further action by Congress appeared necessary. The most recent estimate of the cost to the United States for the improvement is $8,259,000 with $55,000 annually for operation and maintenance. No construction has been undertaken.
5. As summarized from the above, the estimated first cost to local interests for the required alteration of bridges and utilities is as follows: Alteration of city-owned highway bridges.
$604, 000 Alteration of city-owned utilities
Total for city-owned structures.-
Total for non-city-owned structures.
1, 583, 000
In addition local interests would be required to operate and maintained the movable span of the Great Northern railroad bridge at mile 854.4 at br an estimated annual cost of $6,000 and to furnish free of cost to the ha É United States all lands needed for the improvement and suitable spoil an disposal areas for new work and for subsequent maintenance as he required.
6. The city of Minneapolis is greatly interested in the improvement.cat At a public hearing held by the district engineer at Minneapolis local sin interests indicated that they do not at this time advocate any modifi- bied cation of the project plan in regard to the works included. They use desire consideration of a change in the nature of the local cooperation to required. No reduction in the amount of local cooperation so as to inco reduce the cost to them is requested. They point out, however, that al difficulties in furnishing the local cooperation could be avoided by that modification of the items required. No particular difficulties arise insan connection with furnishing the required lands and spoil disposal areas to and with alteration of the highway bridges and city-owned utilities. However, the city expects that it will need to be responsible for seeing to it that all the conditions of local cooperation are met. This presents legal problems and requires that the city act as an intermediary between the United States, the several owners of the railroad bridges, and the owner of the submarine power cable. In preference to being involved in these matters it suggests that it be permitted to make a suitable cash contribution to the cost of the improvements as a whole.
7. The Board has given careful consideration to the advisability of modifying the conditions of local cooperation as desired by the city of Minneapolis. Because of the large local benefits of the improvement, it is of the opinion that no reduction should be made in the amount of the local cooperation required and notes that local interests do not advocate a reduction in the costs to them. At the time the plan was approved by the Board, it was not definitely known that the city would be the agency to furnish the funds needed for meeting the requirements. The city has now considered its ability to be the responsible agency and advised that fulfillment of the requirements of a suitable local contribution will be facilitated if the nature of the requirements are modified. This will not increase the estimated cost to the United States and the Board knows of no sufficient reason why modification of the terms should not be made. It will enable the United States to deal direct with the owners of the railroad bridges to be modified and with the owner of the submarine power cable. After review of the matter the Board concludes that suitable local cooperation will be provided for if local interests are required to make the necessary alterations to highway bridges and publicly owned utility structures, to contribute $1,100,000 to the first cost of the improvement as a whole and to furnish at their expense all lands needed and spoil disposal areas for new work and subsequent maintenance.
8. Accordingly, the Board recommends modification of the project for the improvement of the Mississippi River at Minneapolis 88 follows:
Mississippi River, Minneapolis, Minn.: Extension of the 9-foot channel of the upper Mississippi River navigation project to the vicinity of the Soo Line railway bridge above the Falls of St. Anthony, iD