River, Canal and Cut

River, Canal and Cut (HM1LCB)

Location: New Site, MS 38859 Tishomingo County
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Country: United States of America
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N 34° 30.34', W 88° 19.435'

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The Tennessee-Tombigbee Waterway has three main parts. The largest section from Demopolis, Alabama, north to Amory, Mississippi, utilizes the Tombigbee River but changes and shortens the existing channel with dams, locks, and short cuts. From Amory a canal section using a chain-of-lakes construction extends to the Bay Springs Lock and Dam. The final section cuts deeply through high ground to the Tennessee River.

Waterway Statistics

Total length          234 miles (377 km)
     River section          149 miles (240 km)
     Canal section          46 miles (74 km)
     Divide cut section          39 miles (63 km)
Standard width          300 feet (91 m)
Divide cut width          280 feet (85 m)
Minimum channel depth          9 feet (2.7 m)
Lock dimensions     110 feet X 600 feet (34 m X 183 m)
Material excavated     307 million cubic yards (235 million cubic meters)

Operation of a Lock

1. Upper gates (D) and fill valve (B) are closed. Lower gates (C) are opened and towboat enters lock.
2. Lower gates (C) and drain valve (A) are closed. Fill valve (B) is opened and water level in lock rises.
3. Upper gates (D) are opened and towboat proceeds upstream. The process is reversed for towboats going downstream.
Series This marker is part of the Natchez Trace series
Placed ByNational Park Service
Marker ConditionNo reports yet
Date Added Friday, June 26th, 2015 at 2:02pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)16S E 378464 N 3819021
Decimal Degrees34.50566667, -88.32391667
Degrees and Decimal MinutesN 34° 30.34', W 88° 19.435'
Degrees, Minutes and Seconds34° 30' 20.4" N, 88° 19' 26.1" W
Driving DirectionsGoogle Maps
Area Code(s)662
Closest Postal AddressAt or near Natchez Trace Pkwy, New Site MS 38859, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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