808+000 808+000 9 9 99 9 9 9 98 88 7 7 77 87 8 88 99 99 89 9 9 99 9 9 9 8 88 77 66 66 67 79 9 8 8 7 79 8 8 77 78 99 9 9 9 9 8 9 9 8 8 8 7 7 8 8 8 9 6 6 6 5 5 5 5 5 6 7 5 5 4 4 4 3 3 3 3 3 4 4 5 5 6 6 6 5 5 5 5 6 6 6 5 4 4 4 5 4 4 4 5 6 5 6 5 5 6 5 6 6 5 6 6 5 5 5 5 5 5 6 6 7 7 6 6 6 7 6 7 7 7 6 6 6 7 7 8 8 9 9 9 99 98 88 8 7 7 87 7 7 7 7 6 6 5 6 6 66 67 66 8 8 77 78 66 66 65 5 4 5 56 66 68 7 7 76 7 7 8 9 98 8 8 8 21 21 21 21 20 20 20 20 20 20 20 20 20 20 20 19 20 20 20 19 20 19 19 19 19 19 18 19 19 18 18 18 18 18 18 1818 18 19 19 19 19 19 20 19 19 19 1919 19 18 19 19 19 19 19 19 19 20 20 20 20 20 21 21 20 20 20 21 21 21 21 21 21 20 21 21 2222 2221 2323 25 24 25 26 27 26 27 27 29 29 29 3029282830343433 35 332828 28 35 37 38 38 39 37383622 21 21 20 21 2121 2121 2221 21 21 2121 2121 22 21 21 21 19 19 19 19 20 19 19 18 18 19 19 19 18 18 18 17 17 17 17 16 16 15 14 14 12 11 10 13 1212 1110 1010 1010 1112 1214 15 1515 1515 16 16 17 18 19 20 20 21 21 21 20 20 19 19 20 18191920 26 31 32 32 31 31 3133343435343434343434322524242424211817171717241719 16 16 16 16 15 162224252625252422 22 23 23 2222 222121202121212020202020201919 18 19 1818181818181719 18 1818 1816151618211918 1819 17 17 17161516151515 15 1715141516 16 15 14 14 1313 13 15 13 12 13 15 16 16 16 18 16 15 15 15 16 16 17 17 17 17 17 18 18 18 18 19 19 20 20 20 20 20 20 20 19 19 19 18 19 18 19 20 21 21 21 21 21 21 21 21 21 21 21 22 22 22 17 15 15 15 14 14 14 14 14 15 15 16 15 15 15 15 14 15 15 14 15 15 15 15 14 13 15 15 15 14 15 15 15 15 15 15 15 15 14 14 14 13 13 14 13 14 14 13 14 14 14 14 14 14 14 14 14 15 15 16 16 17 18 17 18 17 18 18 18 18 18 18 18 18 17 17 17 16 14 14 13 14 13 12 12 12 11 12 11 10 10 11 11 10 10 10 11 12 12 13 14 15 17 18 20 20 19 19 19 20 20 24 23 29 33 34 34 34 30 31 28 25 23 30 31 24 30 35 38 39 39 36 37 37 34 34 35 37 34 33 34 35 34 34 34 34 35 34 32 30 30 26 25 25 25 25 24 23 24 25 28 27 26 27 27 27 27 27 27 26 25 25 25 25 24 24 25 24 23 21 23 22 23 23 22 22 23 22 23 22 23 22 22 22 22 22 22 22 23 23 23 23 23 23 23 25 27 28 29 28 29 30 29 29 28 27 27 27 27 26 27 28 24 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 22 22 22 22 22 23 23 22 22 22 21 21 21 21 21 21 21 22 22 22 22 22 21 21 20 20 20 20 20 20 19 20 20 20 2021 21 21 22 22 21 21 21 21 21 2020 20 20 20 20 20 21 21 22 22 22 22 22 21 21 21 21 21 22 21 21 23 22 23 23 23 23 24 24 24 24 23 23 24 24 25 25 26 35 3535353435 32 35 38 38 38 36 37 37 36 35 20 20 20 21 24 20 19 18 17 15 13 12 12 11 10 10 10 1112 1213 18 18 19 20 1919 20 18 18 17 17 16 15161615 16 1516 16 16 151516 15 151616161616 16 1616 16 1616 16 1616161616 16 16161616 16 151515 15 151519 21 22222121 202121 21 21212121 19 1919 18 1919 191919 1818 18 1818 1919 20 19191918 1818171717 17 1515 15 1717171616 14 13 15 13 JUNCTION WITH GIWW 807+0 807+0 4+00 4+00 2+00 2+00 9+00 9+00 7+00 7+00 0+00 0+00 5+00 5+00 1+00 1+00 6+00 6+00 3+00 3+00 8+00 8+00 11+00 11+00 61+00 61+00 59+00 59+00 50+00 50+00 58+00 58+00 51+00 51+00 23+00 23+00 24+00 24+00 42+00 42+00 47+00 47+00 39+00 39+00 16+00 16+00 60+00 60+00 28+00 28+00 43+00 43+00 41+00 41+00 14+00 14+00 19+00 19+00 12+00 12+00 44+00 44+00 62+00 62+00 64+00 64+00 26+00 26+00 32+00 32+00 31+00 31+00 30+00 30+00 29+00 29+00 33+00 33+00 37+00 37+00 34+00 34+00 35+00 35+00 38+00 38+00 36+00 36+00 52+00 52+00 53+00 53+00 56+00 56+00 54+00 54+00 57+00 57+00 55+00 55+00 22+00 22+00 20+00 20+00 45+00 45+00 65+00 65+00 63+00 63+00 21+00 21+00 48+00 48+00 40+00 40+00 27+00 27+00 10+00 10+00 17+00 17+00 25+00 25+00 15+00 15+00 13+00 13+00 18+00 18+00 46+00 46+00 49+00 49+00 95°58'30"W 95°59'0"W 28°41'0"N 28°41'0"N 28°41'30"N 28°41'30"N μ Colorado River: Mile 0 to Mile 2 Colorado River: Mile 0 to Mile 2 " ) 32+00 29+00 101+00 108+00 52+00 80+00 115+00 113+00 71+00 141+00 92+00 78+00 16+00 36+00 54+00 133+00 34+00 106+00 66+00 89+00 111+00 44+00 26+00 130+00 127+00 19+00 12+00 9+00 7+00 97+00 95+00 83+00 76+00 59+00 47+00 86+00 135+00 139+00 74+00 124+00 50+00 4+00 99+00 118+00 23+00 61+00 39+00 811+000 810+000 807+000 809+000 -11ft. -11ft. -14ft. -14ft. COLORADO COLORADO RIVER RIVER GIWW GIWW MOUTH MOUTH OF THE OF THE COLORADO COLORADO MOUTH OF THE MOUTH OF THE COLORADO COLORADO COLORADO COLORADO RIVER RIVER GIWW GIWW Texas Texas U.S. Army Corps of Engineers Galveston District Dredging Reach Extent Regional Extent Service Layer Credits: Sources: Esri, HERE, DeLorme, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, MapmyIndia, © OpenStreetMap contributors, and the GIS User Community Esri, DeLorme, GEBCO, NOAA NGDC, and other contributors Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community Coordinate System: NAD 1983 StatePlane Texas South Central FIPS 4204 Feet Projection: Lambert Conformal Conic /Datum: North American 1983 NOTES: 1. HORIZONTAL COORDINATES ARE REFERENCED TO TEXAS STATE PLANE COORDINATE SYSTEM, SOUTH CENTRAL ZONE NAD83 US SURVEY FEET. 2. ELEVATIONS ARE REFERENCED TO MEAN LOWER LOW TIDE (MLLW) DATUM. 3. THIS PROJECT WAS DESIGNED BY THE GALVESTON DISTRICT OF THE U.S. ARMY CORPS OF ENGINEERS. THE INITIALS AND SIGNATURES AND REGISTRATION DESIGNATIONS OF INDIVIDUALS APPEAR ON THESE PROJECT DOCUMENTS WITHIN THE SCOPE OF THEIR EMPLOYMENT AS REQUIRED BY ER1110-1-8152. 4. THE INFORMATION DEPICTED ON THIS SURVEY MAP REPRESENTS THE RESULTS OF SURVEYS MADE ON THE DATES INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING THE GENERAL CONDITIONS EXISTING AT THAT TIME. THESE CONDITIONS ARE SUBJECT TO RAPID CHANGE DUE TO SHOALING EVENTS. A PRUDENT MARINER SHOULD NOT RELY EXCLUSIVELY ON THE INFORMATION PROVIDED HERE. REQUIRED BY 33 CFR 209.325 5. FOR THE MOST UP TO DATE INFORMATION PLEASE CHECK OUR WEBSITE AT: HTTP://WWW.SWG.USACE.ARMY.MIL/MISSIONS/NAVIGATION/HYDROGRAPHICSURVEYS/ 6. NOAA BATHYMETRY CONTOURS PRODUCED FROM HISTORIC BATHYMETRIC (HYDROGRAPHIC) SURVEYS CONDUCTED BY THE NOAA NATIONAL OCEAN SERVICE/COAST SURVEY, AVAILABLE FROM THE NATIONAL GEOPHYSICAL DATA CENTER. SURVEYS VARY AS TO SOUNDING DENSITY, ACCURACY OF DEPTH, ACCURACY OF NAVIGATION, ZERO DATUM, DATE OF SURVEY AND TYPE OF INSTRUMENTATION. 0 1 0.5 Miles Dredging Reach Extent 0 300 600 150 Feet Hydrographic Survey Extent 0 - 10 10 - 15 15 - 20 20 - 25 25 - 30 30 - 50 NOAA Bathymetry (DREDGING REACH EXTENT) MLLW > 1 1 - 3 3 - 5 5 - 7 7 - 9 9 - 11 11 - 13 13 - 15 < 15 Aids to Navigation ^ _ Lights # * Red Side Aids " ) Green Side Aids X W Mooring Buoy Channel Features Channel Dimensions Channel Center Line Channel Station Lines HYDROGRAPHIC SURVEY U.S. ARMY ENGINEER DISTRICT CORPS OF ENGINEERS GALVESTON, TEXAS COLORADO_RIVER Station: 0+00 to 10+500 Mile 0 to Mile 2 MATAGORDA, TEXAS Print Date: 9/9/2017 Mapped by: m3odnrvk Scale: 1:2,400 Additional Imagery: © DigitalGlobe Inc. Side Slope Ratio: (Rise : Run) Authorized Depth: -11ft. Page: 1 of 16 Map: : Additional Info Survey Date(s): 09 September 2017