South Carolina, defenses of coast of...

South Chicago Harbor, Ill., improvement of.

Southern Branch, Elizabeth River, Va. See Elizabeth River.
Southern Pacific Company, bridge of.....

South Fork, Forked Deer River, Tenn. See Forked Deer River.
South Haven Harbor, Mich. :
Improvement of..

Survey of...

1, 7, 16, 675

1, 412; iv, 2801

I, 535

1, 424; IV, 2910

1, 434; IV, 2948

I, 480; IV, 3299
1, 403; IV, 2696

South Hero Island, Lake Champlain, Vt., improvement of channel between
North Hero Island and..

South Milwaukee, Wis., improvement of harbor at.
South Norwalk Harbor, Conn. See Norwalk Harbor.

South Pass, Mississippi River, inspection of improvement of.
Southport Harbor, Conn., survey of..

South River, N. J., improvement of

I, 25, 277; 11, 1731

Southwest Baltimore, Md., improvement of harbor of (Spring Garden).

I, 105, 986
1, 133, 1139

1, 174; II, 1307

Springdale, Pa., construction of lock and dam in Allegheny River at.. 1, 363; III, 2428
Spring Garden, Baltimore Harbor, Md., improvement of.

Improvement of channel between New Jersey and..
Stillaguamish River, Wash., improvement of

1, 174; 11, 1307

1, 1024
1, 23, 1077
I, 110, 1019

1, 100, 967

1, 308; III, 1932

1, 7, 14, 613

1, 130, 1130

Stone Bridge, Sakonnet River, R. I., increasing width and depth of draw

Stonington, Conn., construction of harbor of refuge at..

1, 511; IV, 3438

opening in..

1, 72, 904

Construction of harbor of refuge at eastern entrance..
Improvement of....

Operating and care of..

Submarine mines...

Structures built by the United States, occupancy or injury of..
Sturgeon Bay and Lake Michigan Canal, Wis.:

1, 83, 942

1, 24, 536; VI, 3981

1, 397; IV, 2671

Suisun Creek, Cal., examination of.

Sullivan Falls, Sullivan River, Me., improvement of harbor at.

Sullivan Island shore, Charleston Harbor, S. C., improvement at.
Sulphur River, La., Ark., and Tex. See Red River below Fulton, Ark.
Sumatra (barge), removal of wreck of..

Superior Bay, Minn. and Wis. :

1, 396; IV, 2660
1, 397; IV, 2666
1, 11

I, 488; IV, 3341
1, 29, 776

1, 222; 11, 1471

1, 407; IV, 2751

Harbor lines at Duluth, Minn., and Superior, Wis., modification of. 1, 23; 111, 2647
Improvement of, at Duluth, Minn., and Superior, Wis......

Superior Harbor, Wis. :

1, 386; 111, 2592

Bridge across St. Louis River to Duluth, Minn., construction of.........

Estimate for examinations, contingencies, and, of rivers and harbors..
In military departments..

Susquehanna River, Md., improvement of..

Suterville, Pa., construction of bridge across Youghiogheny River at.

Swan Creek, Ohio, construction of bridge across, at Toledo..

Suwanee River, Fla., improvement of.

Swan (schooner), examination for removal of wreck of..

I, 24
I, 524

1, 547; VI, 4131
I, 163; II, 1272

1,533

1,249; 11, 1564

1,531

1, 43, 801
1,516; iv, 3450

T.

Tallahatchie River, Miss.:

Bridge at Philipp, construction of...
Improvement of...

Tampa, Fla. :

Examination of Hillsboro Bay and River up to

Removal of wreck in Hillsboro River at....

Tampa Bay, Fla., survey of, from Port Tampa to mouth..
Tappan Zee, N. Y. See Nyack Harbor.

Tar River, N. C., improvement of ..........
Taunton River, Mass., improvement of
Tehefuncte River, La. See Chefuncte River.
Teche Bayou, La.:

Bridge at Jeanerette, construction of....

Bridge in St. Martin Parish, construction of..
Bridge at St. Martinville, construction of.....
Improvement of.

Survey of, from St. Martinville to Port Barre
Tennessee River, Tenn., Ala., and Ky.:

Chattanooga, Tenn., improvement above
Chattanooga, Tenn., to Decatur, Ala.
Decatur to Florence, Ala..

Florence to foot of Bee Tree Shoals, Ala.
Gauging...

Improvement of, and tributaries..

Injury to training walls..

Livingston Point, Ky., improvement at.

Muscle Shoals Canal, Ala., operating and care of.

Riverton, Ala., improvement below..

Survey of mouth of ............

Tensas River, La., improvement of...

Texarkana and Fort Smith Railway Company, bridge of..

Thames River, Conn., improvement of..

The Board of Engineers..

The Dalles Rapids, Columbia River, Oreg. and Wash., construction of boat
railway to Celilo Falls...

Thimble Islands, Conn., removal of wreck at, east of Branford

I, 4, 553

1,505; IV, 3425

I, 138, 1156

Three Mile Rapids, Columbia River, Oreg. and Wash., improvement

at

Thunder Bay River, Mich. See Alpena Harbor.

Tickfaw River, La., improvement of, and tributaries..
Tillamook Bay and Bar, Oreg., improvement of.
Toledo Harbor, Ohio:

Bridge across Swan Creek, construction of.
Improvement of....

Tombigbee River, Ala. and Miss., improvement of :

Columbus to Fulton, Miss..

Demopolis, Ala., below..

Demopolis, Ala., to Columbus, Miss.

Fulton to Walkers Bridge, Miss..

Tonawanda Harbor, N. Y., improvement of..

Tongue Point, Columbia River, Oreg., removal of wreck below.

Town Creek, Brunswick County, N. C., survey of.

Town River, Mass., improvement of..

Examination of.

Tradewater River, Ky.:

Improvement of.

Treadwater River, Ky. See Tradewater River.

Trent River, N. C., improvement of..

1,505; IV, 3425

1,279; II, 1753
I, 501; IV, 3397

1, 202; 11, 1391

Triangular area between Bay Ridge and Red Hook channels, New York

Harbor, N. Y.:

Improvement of...

Bridge above Marianna, construction of ....

Tuckerton Creek, N. J., examination of, including flats at mouth.

Tug Fork, Big Sandy River, W. Va. and Ky., improvement of..

1, 125, 1117
I, 140, 1177

I, 534

1, 296; II, 1805
I, 154; II, 1230
1,375; 111, 2528
I, 530

Tuscaloosa County, Ala., construction of bridge across Warrior River in...
Twelve Mile Creek, Fla. See Orange River.

Valley Creek, Ala., canal from Black Warrior River to Birmingham, via:

Vermilion Harbor, Ohio, improvement of..

1,275; II, 1704
1,275; 11, 1704

Vermilion Bayou, La., improvement of channel, bay, and passes of.... 1, 285; 11, 1766

Vermont and Province Line Railroad Company, bridge of..
Vicksburg Harbor, Miss.:

Improvement of...

Obstruction of mouth, by small craft..

1, 456; IV, 3068

I, 535

1, 306; 111, 1927

Vidalia Harbor, La., improvement of, by Mississippi River Commis-

sion.

Bridge in Tuscaloosa County, construction of...
Canal to Birmingham, examination for..........

Canal to Birmingham, survey for.....

Improvement of, below Tuscaloosa..

Improvement of, between Tuscaloosa and Daniels Creek.

Operating and care of locks and dams above Tuscaloosa.

Warwick River, Md., improvement of......

Washington, D. C.:

Aqueduct Bridge across Potomac River, repair of.

VI, 3982

1, 367; III, 2453
1, 367; III, 2452

1, 69, 892
I, 80, 927, 928
1,240; 11, 1550

1, 366; III, 2452
1,367; 111, 2453
1, 367; III, 2452
1, 368; III, 2455
1, 213; II, 1439
I, 154; II, 1233
1, 543; VI, 4061
I, 115, 1047
I, 534
I, 223; II, 1479

I, 530
1, 275; II, 1704
1,275; 11, 1704
1, 265; 11, 1678
1, 264; II, 1667
1, 265; II, 1675
1, 166; 11, 1277

1, 536; VI, 3987

I, 7, 15, 650
1, 175; 11, 1313

Public buildings and grounds and Washington Monument. 1, 542; VI, 4025, 4032

Washington Aqueduct, increasing water supply of city of...
Washington Aqueduct, maintenance and repair of..

Washington Aqueduct, raising height of Great Falls Dam.

Washington Monument, care and maintenance of....

ENG 97-3

VI, 3981
1, 540; vi, 4018
1, 537; VI, 3991
1,540; VI, 4018
1, 542; VI, 4032

Washington, N. C.:

Improvement of harbor at....

Survey of Pamlico River at and below..
Washington Aqueduct, District of Columbia. See Washington, D. C.
Washington Lake, Wash., improvement of waterway to Puget Sound.
"Washington Monument, Washington, D. C., care and maintenance of.
Wateree River, S. C., improvement of...

Water hyacinth, obstruction of navigable Southern rivers, by the.
Water-level observations:

See also Hydraulics.

Columbia River, Oreg. and Wash.
Mississippi River and tributaries...
Mississippi River at St. Paul, Minn.
Northern and Northwestern Lakes..

Waterways:

See also Canals.

1, 201; 11, 1388
1, 212; 11, 1425

1,513; iv, 3445
1,542; vi, 4032
1, 220; 11, 1465
1,25

1,507; IV, 3432
1, 23, 309; 11, 1936
1,332; 111, 2164
1, 547; VI, 4127

Albemarle Sound, N. C., to Norfolk Harbor, Va......
Beaufort Harbor, N. C., to Newbern, improvement of.
Beaufort Harbor, N. C., to New River, improvement of..
Beaufort Harbor, S. C., to Savannah, Ga., improvement of....
Chincoteague Bay, Va., to Delaware Bay, Del., improvement of...
Delaware Bay, Del., to Chincoteague Bay, Va., improvement of...
Fernandina, Fla., to Savannah, Ga., improvement of...
Keweenaw Bay to Lake Superior, Mich., improvement and
care of....

1, 195; II, 1374
1, 204; 11, 1395

1, 205; 11, 1398
1, 224; 11, 1493
1, 162; 11, 1270
1, 162; 11, 1270
1, 236; II, 1535

operating and

1,389, 390; III, 2608
1, 204; 11, 1395
1, 205; II, 1398

Newbern to Beaufort, N. C., improvement of..
New River to Beaufort, N. C., improvement of..
Norfolk Harbor, Va., to Albemarle Sound, N. C., improvement of. 1, 195; 11, 1374
Puget Sound to lakes Union and Washington, Wash.,

of

Savannah, Ga., to Beaufort, S. C., improvement of..
Savannah, Ga., to Fernandina, Fla., improvement of..
Superior Lake to Keweenaw Bay, Mich., improvement and
care of..

improvement

1, 513; IV, 3445
1, 224; 11, 1493
1,236; 11, 1535

operating and

1,389, 390; III, 2608
1, 513; iv, 3445
1,513; IV, 3445

Union Lake, Wash., improvement of waterway via...
Washington Lake to Puget Sound, Wash., via Lake Union......
Waukegan Harbor, Ill. :

Harbor line at, establishment of.
Improvement of.

West Braddock Bridge Company, bridge of..

Western Branch, Elizabeth River, Va., improvement of..
West Galveston Bay, Tex., improvement of channel in...
Westport Harbor, Conn., improvement of...
Weymouth Back River, Mass.:

Improvement of..

Survey of, from Hingham Bridge to Manu's wharf.
Weymouth Fore River, Mass., improvement of

White Lake Harbor, Mich., improvement of...........
White River, Ark.:

Gauging

Improvement of.

Survey of, from Batesville to Buffalo Shoals.

Survey of Buffalo Fork..

White River, Ind. :

Improvement of.

Survey of...

Wickford Harbor, R. I., improvement of..

Wicomico River, Md., improvement of...

Willamette River, Oreg.:

Improvement of, above Portland..

Improvement of, below Portland

Willapa River and Harbor, Wash., improvement of

I, 24; IV, 2786
1, 405; IV, 2706
I, 533

I, 191; II, 1365
1, 295; II, 1804
I, 96, 961

I, 58, 849

1, 65, 873

1, 58, 849
I, 429; iv, 2926

1, 23, 309; III, 1936
1,312; 11, 1971
1, 316; III, 1992
1, 317; II, 1994

1,368; 111, 2456
1,372; 111, 2483
I, 75, 913
I, 168; 11, 1280

I, 506; IV, 3429
1, 503; IV, 3407
1,508; IV, 3434

1, 6, 22, 570
1, 6, 22, 574
1, 5, 22, 562

1,22
1, 4, 22, 559
1,486; IV, 3335

Woodbury Creek, N. J., rebuilding dike in Delaware River at.......... 1, 152, 639; 11, 1223

Woods Hole Channel, Mass., improvement of..
Wrecks, removal of..