Gulf Intracoastal Waterway - Florida’s Panhandle

Carrabelle, FL to Perdido Key, FL

From its starting point at 29° 47.533’ N / 84° 40.384’ W (MM "376.0 EHL") near Carrabelle, FL, this section of Florida’s Gulf Intracoastal Waterway runs generally in a westerly direction, ending at 30°18.549’N / 87°27.342’W (MM "170.0 EHL") near Ono Island, AL and Perdido Key, FL, a distance of approximately 206 statute miles.

Be aware of the time zone change on the GICW in the vicinity of Green Daybeacon #1 (MM "316.9 EHL") on Wetappo Creek 1.5 miles NNW of the Overstreet Bridge.



The GICW is marked with your standard Aids to Navigation. In addition, they display yellow triangles or yellow squares. When westbound along this section of the Gulf Intracoastal Waterway, marks displaying yellow triangles should be kept on your starbord hand and those marked with yellow squares should be kept to port. While typically the yellow triangles will be found on red markers and yellow squares are found on green markers, caution should be exercised around Panama City and Pensacola where the GICW intersects or coincides with channels marked by the Lateral Buoyage System.


NOAA chart coverage of this portion of Florida"s GICW between Carrabelle and Perdido Key, FL is provided by charts #11404, #11402, #11393, #11390, #11385, and #11378. These charts can be viewed by clicking on the links below:

Chart #11404 Carrabelle to Apalachicola Bay
Chart #11402 Apalachicola Bay to Lake Wimico
Chart #11393 Lake Wimico to East Bay
Chart #11390 East Bay to West Bay
Chart #11385 West Bay to Santa Rosa Sound
Chart #11378 Santa Rosa Sound to Dauphine Island

Distances and Mileages

All distances along the Florida Gulf Intracoastal Waterway are given in statute miles unless otherwise noted. Statute miles are used in order to conform to the distances shown on the small craft charts typically used along this route.

Unlike the GICW of Florida’s west coast, this portion of the GICW between Carrabelle and Perdido Key, FL is measured based on decreasing mileage when westbound (East of Harvey Lock - EHL) from (MM "376.0 EHL") to (MM "170.0 EHL".)


The Federal Project Depth for this portion of the Gulf Intracoastal Waterway provides for a channel depth of 12 feet. While every effort is made to maintain this project depth, the actual controlling depths in the channels may vary due to shoaling reducing the available water depth until maintenance dredging can be accomplished.


Bridges, Locks, and Overhead Power Lines


At last count, a total of 13 bridges cross the Gulf Intracoastal Waterway between Carrabelle and Perdido Key, FL. The fixed bridges along this route provide a minimum vertical clearances of 50’.

This list is believed to be accurate as of July 2018. If any errors or omissions are noted, please e-mail us at with any corrections or recommendations.

Open Down Arrow GICW - Florida (Panhandle) Bridge Schedule

Florida (Panhandle) Gulf Intracoastal Waterway Bridges

Mile Marker Bridge Charted Vert. Clear. Schedule Restrictions VHF
361.2 EHL St. Georges Bridge 65’ Fixed Bridge    
351.4 EHL John Gorrie Bridge 65’ Fixed Bridge    
329.3 EHL White City Bridge 65’ Fixed Bridge    
315.4 EHL Overstreet Bridge 65’ Fixed Bridge    
295.4 EHL Dupont Bridge 50’ Fixed Bridge    
284.6 EHL Hathaway Bridge 65’ Fixed Bridge    
271.8 EHL West Bay Creek Bridge 65’ Fixed Bridge Twin Spans  
250.4 EHL Choctawhatchee Bay Bridge 65’ Fixed Bridge    
234.2 EHL Mid-Bay Bridge 64’ Fixed Bridge    
223.1 EHL Brooks Bridge 50’ Fixed Bridge    
206.6 EHL Navarre Causeway Bridge 50’ Fixed Bridge    
189.0 EHL Pensacola Beach Bridge 65’ Fixed Bridge    
171.8 EHL Perdido Key Bridge 73’ Fixed Bridge    

The table above lists the bridges, their schedules, and restrictions along Florida's Panhandle route segment of the Gulf Intracoastal Waterway from it's beginning at Carrabelle, FL to the Alabama state line.

This bridge operating schedule can be downloaded for your personal and private use as a ZIP file. The file contains the schedule in Adobe (.pdf) file format.

Florida (Panhandle) GIWW Bridge Schedule - Download



Overhead Cable and Power Lines

The minimum authorized clearance of overhead cables crossing this section of the GICW is 70 feet and is found on West Bay Creek at (MM "272.5 EHL".)

Caution - Many of the overhead cables over the waterway carry high voltage, and an extra margin of safety should be allowed when the weather is threatening.


Tidal ranges are fairly small along Florida’s panhandle coast. Under normal conditions the mean range of tide averages slightly above 1.5’ at Carrabella and decreases to approximately 1.1’ at Pensacola.

The type of tide experienced in this area is typically a "Diurnal Tide" - exhibiting (1) high tide and (1) low tide each day.

Inlets and Passes

There are numerous Entrances, Inlets, or Passes between the Gulf of Mexico and this section of Florida’s Gulf Intracoastal Waterway (approximately 12.) Many of these are only suitable for the smallest of vessels with shallow draft and local knowledge, but some can be considered navigable for most vessels.

East Pass

East Pass is in the vicinity of (MM "375.0 EHL") and separates Dog Island from St. Georges Island. This pass is well marked and with depths averaging 20’.

Port St. Joe Inlet

Port St. Joe Inlet is near (MM "327.0 EHL)" via the Gulf Canal connecting Port St. Joe with the Gulf Intracoastal Waterway. The inlet is deep and well marked with buoys and ranges. The entrance is located to the NNW of Cape San Blas between St. Joseph Point and St. Andrew Point.

St. Andrews Inlet

St. Andrews Inlet, in the vicinity of mile marker "288.5 EHL" enters between Lower Grand Lagoon and Shell Island. The channel is deep and is marked by buoys and ranges to its junction with the Gulf Intracoastal Waterway.

Pensacola Inlet

The entrance to Pensacola Bay is Caucus Channel lying between Perdido Key to the west and Santa Rosa Island to the east. The entrance is over ½ mile wide and has a project depth of 35’. The channel is well marked by lighted ranges, lights, daybeacons, and buoys.

Pensacola Light (Fl 20s), 191 feet above the water is the principal mark for the entrance.

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