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US Army Corps of Engineers
Galveston District Website
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Gulf Intracoastal Waterway Tributaries
Gulf Intracoastal Waterway Tributaries
View larger map
Offats Bayou Channel
Offats Bayou Channel
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
East Wye/West Wye
0+00 to 24+32.53
05/12/23
Survey Map
XYZ
2
West Wye/West Wye
367+000 to 24+32.53
05/12/23
Survey Map
XYZ
3-5
Offats Bayou Channel
24+32.53 to 140+00
05/12/23
Survey Map
XYZ
Channel to Port Bolivar
Channel to Port Bolivar
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
Entrance Channel
0+00 to 64+51.33
05/22/23
Survey Map
XYZ
2
North Ferry Channel
-4+74.81 to 10+00
06/30/23
Survey Map
XYZ
3
Central Ferry Channel
-4+12.5 to 13+33.54
Survey Map
XYZ
4
South Ferry Channel
-3+94.17 to 29+02.67
Survey Map
XYZ
Chocolate Bayou Channel
Chocolate Bayou Channel
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
East Wye
0+000 to 36+79.72
06/07/23
Survey Map
XYZ
2
West Wye
0+000 to 36+79.72
06/07/23; 09/05/23
Survey Map
XYZ
3-6
Bay Channel
36+79.72 to 290+00
06/07/23
Survey Map
XYZ
7-9
Land Cut
290+00 to 434+29.46
06/07/23
Survey Map
XYZ
San Bernard River Channel
San Bernard River Channel
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
GIWW to the Gulf of Mexico
0+00 to 82+00
05/19/23
Survey Map
XYZ
2
Mile 0 to Mile 0.5
0+00 to 26+00
05/19/23
Survey Map
XYZ
3-4
Mile 0.5 to Mile 3.7
26+00 to 196+00
05/19/23
Survey Map
XYZ
5-7
Mile 3.7 to Mile 8
196+00 to 420+00
05/19/23
Survey Map
XYZ
8-15
Mile 8 to Mile 20.5
420+00 to 1080+00
05/20/22
Survey Map
XYZ
16-18
Mile 20.5 to Mile 25.2
1080+00 to 1330+00
05/10,20/22
Survey Map
XYZ
19
Mile 25.2 to Mile 26
1330+00 to 1337+48.98
05/10/22
Survey Map
XYZ
Channel to Palacios
Channel to Palacios
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
East Wye
0+00 to 34+41.06
05/02/23
Survey Map
XYZ
2
West Wye
(-)3+59.31 to 34+41.06
05/02/23
Survey Map
XYZ
3-9
Mile (GIWW) to Light 40
34+41.06 to
480+00
05/03/23; 06/28/23; 07/05,10,14,17/23
Survey Map
XYZ
10-15
Light 40 to City Basin
480+00 to 798+00
05/03/23
Survey Map
XYZ
16
City Basin
798+00 to 804+48
05/03/23
Survey Map
XYZ
17
Entrance Channel to Municipal Basin
0+00 to 6+85.15
05/03/23
Survey Map
XYZ
18
Municipal Basin
0+00 to 11+30
04/05/23
Survey Map
XYZ
Mouth of the Colorado River via By-Pass Channel
Mouth of the Colorado River via By-Pass Channel
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1-3
Mile 0 (Gulf) to Mile 1.4
-75+00 to 0+00
05/16/23
Survey Map
XYZ
4-6
Mile 1.4 to Mile 3.9
0+00 to 133+58
05/16/23
Survey Map
XYZ
7-8
Mile 3.9 to Mile 5.7
133+58 to 226+22
05/16/23
Survey Map
XYZ
9-10
Mile 5.7 to Mile 8.36 (GIWW)
226+22 to 368+10
05/17/23
Survey Map
XYZ
11
Braggs Cut
0+00 to 16+44
5/20/16
Survey Map
XYZ
Colorado River Channel
Colorado River Channel
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1-2
Mile 0 to Mile 2
0+00 to 10+903
06/01/2023
Survey Map
XYZ
3-8
Mile 2 to Mile 8
10+903 to 42+000
06/01,05/23
Survey Map
XYZ
9-13
Mile 8 to Mile 13.5
42+000 to 71+000
06/06/23
Survey Map
XYZ
14-15
Mile 13.5 to Mile 15.5
71+000 to 82+430
06/06/23
Survey Map
XYZ
16
Turning Basin
82+430 to 83+230
06/06/23
Survey Map
XYZ
Channel to Victoria and Channel to Seadrift
Channel to Seadrift
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
South Wye
0+00s to 30+00s
05/12/23
Survey Map
XYZ
2
North Wye
0+00n to 30+00n
05/12/23
Survey Map
XYZ
3
Connecting Channel to Seadrift
30+00 to 106+18
05/12/23
Survey Map
XYZ
4
Seadrift Turning Basin
106+18 to 109+18.40
05/12/23
Survey Map
XYZ
Channel to Victoria
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
Easterly Connecting Wye Channel
0+00 to 42+56
09/08/23
Survey Map
XYZ
2
Westerly Connecting Wye Channel
0+04 to 42+56
09/05/23
Survey Map
XYZ
3-13
Mile 0 (GIWW) to Mile 11
5+00 to 581+00
04/19/23; 08/07,14,18/23; 09/05,18,25/23
Survey Map
XYZ
14-16
Mile 11 to Mile 14
581+00 to 740+00
04/19/23
Survey Map
XYZ
17-30
Mile 14 to Mile 29
740+00 to 1540+00
05/10/23
Survey Map
XYZ
31-37
Mile 29 to Mile 34.7
1540+00 to 1837+46
05/10/23
Survey Map
XYZ
38
Turning Basin
0+00 to 7+13.26
05/10/23
Survey Map
XYZ
Alternate Route via Lydia Ann Channel
Alternate Route via Lydia Ann Channel
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1-6
Aransas Bay Light 49 to Light 83
1236+611 to 1278+523.11
08/21/23
Survey Map
XYZ
7-9
Light 83 to Corpus Christi Ship Channel
1278+523.11 to 1298+920
08/18/23
Survey Map
XYZ
Aransas Pass
ARANSAS PASS
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1 - 5
Channel
0+00 to 324+42
09/07/23
Survey Map
XYZ
6
Turning Basin
0+00 to 22+00
09/06/23
Survey Map
XYZ
7
La Quinta Extension (San Patricio Basin)
22+00 to 29+00
09/06/23
Survey Map
XYZ
8
Conn Brown Harbor
29+00 to 50+00
09/06/23
Survey Map
XYZ
Channel to Port Aransas
Channel to Port Aransas
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
Approach Channel
2+00 to 8+88
09/06/23
Survey Map
XYZ
2
Harbor Basin
8+88 to 14+27
09/07/23
Survey Map
XYZ
3
Anchorage Basin
0+00 to 9+00
09/07/23
Survey Map
XYZ
Channel to Port Mansfield
Channel to Port Mansfield
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1-2
Entrance Channel
-4+000 to 0+000
04/15/23
Survey Map
XYZ
3
Mile 0.7 to Mile 1.3
0+000 to 3+000
03/07/23
Survey Map
XYZ
4-5
Mile 1.3 to Mile 3
3+000 to 12+000
03/07/23
Survey Map
XYZ
6-8
Mile 3 to Mile 6
12+000 to 28+000
03/07/23
Survey Map
XYZ
9-11
Mile 6 to Main Channel (GIWW)
28+000 to 45+036.15
03/09/23
Survey Map
XYZ
12
North East Wye
41+256 ne to 44+014 ne
03/09/23
Survey Map
XYZ
13
South East Wye
41+256 se to 43+994 se
03/09/23
Survey Map
XYZ
14
North West Wye
0+023 nw to 2+980 nw
03/09/23
Survey Map
XYZ
15
South West Wye
0+000 sw to 2+980 sw
03/09/23
Survey Map
XYZ
16
Main Channel to Turning Basin
2+980 to 7+720
03/09/23
Survey Map
XYZ
17
Turning Basin
7+720 to 9+550
03/09/23
Survey Map
XYZ
18
Shrimp Basin
9+550 to 11+000
03/09/23
Survey Map
XYZ
19
Small Craft Basin
0+000 to 1+496
03/09/23
Survey Map
XYZ
Channel to Harlingen
Channel to Harlingen
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
North Wye
5+01n to 39+720n
08/08/23
Survey Map
XYZ
2
South Wye
0+00 to 50+00
08/08/23
Survey Map
XYZ
3-8
Mile 0 to Mile 8
50+00 to 420+00
03/23/23
Survey Map
XYZ
9-17
Mile 8 to Mile 20
420+00 to 1060+00
03/21/23
Survey Map
XYZ
18-21
Mile 20 to Mile 25.9
1060+00 to 1364+50
04/17/23
Survey Map
XYZ
22
Turning Basin
1364+50 to 1369+50
04/17/23
Survey Map
XYZ
Port Isabel Small Boat Harbor
Port Isabel Small Boat Harbor
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
Entrance Channel
0+063 to 7+500
04/06/23
Survey Map
XYZ
2
Harbor Basin
7+500 to 9+337
04/06/23
Survey Map
XYZ
3
Basin
9+337 to 10+500
04/06/23
Survey Map
XYZ
Port Isabel Side Channels
PAGES
CHANNEL
Station to Station
Survey Date(s)
PDF Map
XYZ Data
1
60 Foot Channel
0+00 to 17+00
05/03/23
Survey Map
XYZ
2
125 Foot Channel
17+00 to 54+75.9
05/03/23
Survey Map
XYZ
3
125 Foot Channel South Leg
38+17.51 to 52+96
05/03/23
Survey Map
XYZ