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38 miles and 17 locks from Green Bay to Lake Winnebago
Locks are 35'x144' with 6' water over the sill. All bridges are wider than 35'.
Controlling vertical clearance is 32' at the Claude Allouez/WI32 Bridge at mile 7.3, but this may be reduced by two bridges for which vertical clearance data is unavailable.
(For comparison, most Mississippi locks are 110x600'; most modern barges are 35'x195' though 30'x120' barges do exist. The current locks on the Erie canal are 45'x328' with 12' of water over the sills)
http://www.charts.noaa.gov/PDFs/14916.pdf
https://www.portofgreenbay.com/bridges/
R.M. [ 1]
Green Bay
0.5
Leo Frigo Bridge/Tower Drive/I-43 fixed 119'
0.8
East River
1.1
RR bridge swing 7' normally open
1.6
Main st bridge 12' bascule [ 2]
1.9
Walnut st bridge bascule 11' or [ 3] 14.9[ 4]
2.4
Mason St/Tillman bridge 32.6' bascule
3.4
RR bridge 31' swing normally open
5.0
WI172 Fixed bridge 60'
Fox point boat launch
Perkofski boat launch
7.1
De Pere Lock hours 10-10
7.3
Claude Allouez Bridge WI32 fixed 32'
7.5
Bomier St Boat Launch
Little Rapids/Wrightstown area 13-18
13.1
Little Kaukana lock hours 10-10
reports of serious shoaling in this area
17.1
Broadway St Bridge bascule 16' BUT satellite
shows a fixed bridge with very little clearance
17.2
Wrightstown Park Boat Ramp
Near Broadway St Bridge about 1.5 miles from lock
Kaukana/Appleton/Menasha area 19-24
19.2
Rapide Croche lock Closed to navigation
22.8
Kaukana 5 lock closed as of 2018
23.1
Kaukana 4 lock closed as of 2018
23.2
Kaukana 3 lock closed as of 2018
RR bridge 14'
23.4
Kaukana 2 lock closed as of 2018
23.6
Kaukana 1 lock closed as of 2018
Catherine St. Kaukana Bridge lift 4' inop possibly until 2021
Fixed bridge WI55/Lowe St clearance unknown guess 20'
24.0
Guard lock
25.4
Combined locks Fri/Sat/Sun 11-9
footbridge
26.4
Little Chute Fri/Sat/Sun 11-9
bascule bridge 4' temporarily closed for construction
26.6
Guard lock
Madison St fixed 54'
27.3
Cedars Lock Fri/Sat/Sun 12-8
Tri-county expressway fixed 54'
Appleton
Appleton Locks 4-1 lock hours Fri Sat Sun 11-9
Upstream lockage on the odd hour
Downstream on the even hour
30.7
Appleton Lock 4
Bridge East College 54' fixed
RR swing 4'
31.3
Appleton Lock 3
South Lowe St. Bridge 3' bascule
31.6
Appleton Lock 2
South Olde Oneida St. Bascule 10'
South Oneida St. bridge Fixed 54' Skyline bridge
31.9
Appleton Lock 1
South Memorial Dr US10 bridge fixed 54'
Little Lake
Tri county expressway bridge. Under construction.
Fixed. Cl 54' old span. New span reported 51.8'
Ninth St. Boat Launch
37.0
Menasha Lock CLOSED TO NAVIGATION
Footbridge adjacent to lock (not on Navionics) (Bascule 3')
Valley Marine Mart ramp
RR bridge bascule 3'
Tayco St bridge bascule 7'
Marina
Bascule bridge 3'
Lake Winnebago
^ River Miles for locks are per NOAA. Others are approximate since there is no officially published channel line.
^ Main St., Mason St., and Mason St. bridges contact 920.492.3735 for operation
^ NOAA, Navionics
^ Port of Green Bay