and 110 by 360 feet at Gallipolis. Dashields is a fixed dam, while Emsworth, Montgomery, and Gallipolis are fixed dams with movable crests. The remainder of the 46 dams are of the movable type, with navigable pass varying in width from 600 to 1,248 feet. In addition to the navigable pass, the movable type dams are also provided with one or more regulating weirs. At dam 41 a canal (Louisville and Portland) extends along the left bank for a distance of 2 miles, with the locks at the lower end.

Operation and care of the locks and dams were included in the project July 1, 1935, under the provisions of the Permanent Appropriations Repeal Act approved June 26, 1934.

The estimate of cost of new work (existing project) (1955) exclusive of Gallipolis locks and dam reported under the Kanawha River project, is $581,735,400. The foregoing estimate does not include expenditures on previous projects.

The following items previously included in this project are considered to be inactive and are excluded from the foregoing cost estimate: Raising crest of dam 14; construction of beartraps at dam 21; construction of additional beartraps at dams 18, 22, 23, 27, 30, 39, and 43 and construction of guard wall and guide wall extensions at locks and dams 35, 41, 44, 45, 46, 48, 49, 50, 51, and 52. The cost of these items was last revised in 1954 and was estimated to be $11,064,700.

The estimate of annual cost of operation and maintenance of locks and dams (1955) is $7,300,000.

The existing project was authorized by the following River and Harbor Acts:

Acts

June 25, 1910

July 18, 1918

Work authorized

Construction of 54 locks with movable dams, widen-
ing of the Louisville and Portland Canal to 170 feet,
and a new lock at the lower end. The act also
granted discretionary authority to the Secretary of
War to make such modifications in the project as
appeared advisable.

Elimination of locks and dams in the lower river
where the project depth of 9 feet could be satis-
factorily maintained by open channel work. Secre-
tary of War authorized to substitute fixed damns
for movable dams wherever, in his opinion, they
may be advisable.

Documents

H. Doc. 492, 60th Cong., 1st sess.

H. Doc., 1695, 64th Cong., 2d sess.

Under the authority granted in the River and Harbor Act of June 25, 1910, the Louisville and Portland Canal has been widened to 200 feet; locks and dams 40 and 42 have been eliminated; locks and dams 1 and 2 replaced by the Emsworth locks and dam; lock and dam 3 replaced by the Dashields locks and dam; and locks and dams 4, 5, and 6 replaced by the Montgomery locks and dam. Locks and dams 24, 25, and 26 were replaced by Gallipolis locks and dam which was authorized by the act of August 30, 1935, and constructed under the project for improving lower Kanawha River.

Table A contains data relative to the various features of the locks and dams included in the existing project. Table B lists the principal towns and cities along the Ohio River with their mileage below Pittsburgh, Pa.

13 125,849,639

Terminal facilities. Modern public terminals, with warehouses, equipped with operating machinery for transferring materials have been constructed by private interests at some of the larger cities and

towns.

The latest published list of terminals on the Ohio River appears in Transportation Series No. 2, 1929. The list is brought up to date each year as of June 30 and can be obtained from the division engineer, Ohio River Division, Cincinnati, Ohio.

Operations and results during fiscal year. New work: New work was performed by contract and hired labor. The costs were as follows:

New Cumberland locks and dam: Preparation of detailed construction
plans and specifications for the locks and appurtenances and design
memoranda for various relocations; initiation of land acquisition for
relocation of Ohio Route 7 and for locks site; entering into contract
agreements with owning agencies for relocation of utilities at locks
site and for paving of relocated Ohio Route 7; initiation (by con-
tract) of work on grading and drainage structures for relocation of
Ohio Route 7----
Greenup locks and dam: Completion (except for final review) of de-
tailed plans and specifications for construction of locks; acquisition
of fee and easement tracts required for locks site; completion of
preliminary work in connection with preparation of a real estate de-
sign memorandum for lands and easements required for abutment
site; construction of temporary office building (by hired labor); con-
struction of access road (by contract); construction of cofferdam for
locks (by contract)

Markland locks and dam: Completion of studies and preparation of
general design memorandum; continuation of model studies; con-
tinuation of studies and preparation of design memorandum and
construction plans and specifications__.

$841, 072

1, 843, 806

78, 942

2,763, 820

Operation and maintenance, general: The locks and dams were operated as required, and necessary repairs and improvements were made