Monroe County, FL
100 public highway bridges
Monroe County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Monroe County, Florida contains 100 public highway bridges. Roughly 33% are rated “Good,” 58% “Fair,” and 7% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Condition Distribution
All Bridges (100)
US 1 (SR 5)
UnknownOver: NAVAL BASE BLVD
NORTH OF KEY WEST (MM8.0), Monroe, FL
Palm Avenue
UnknownOver: Garrison Bight
0.2 Mile W of US-1, Monroe, FL
US 1 (SR 5)
FairOver: CHANNEL #5
FIESTA-CRAIG KEY (MM 71), Monroe, FL
US 1 (SR 5)
FairOver: LONG KEY CHANNEL
LONG KEY (MM 63.2), Monroe, FL
116th Street
FairOver: Venice Waterway
200Ft. S of US 1 MM 52.9, Monroe, FL
US 1 (SR 5)
FairOver: CHANNEL #2
MATECUMBE KEY (MM 73.0), Monroe, FL
Watson Road
FairOver: Bogie Channel
3.5 Mi E of SR 5(MM 30.5), Monroe, FL
Valois Blvd.
FairOver: Canal
200Ft. E of CR-905, Monroe, FL
US 1 (SR 5)
FairOver: MOSER CHANNEL
MARATHON KEY (MM 40-46.6), Monroe, FL
FLEMING KEY ROAD
FairOver: GARRISON BIGHT
1.5 KM N OF US 1, Monroe, FL
112th Street
FairOver: Caloosa Channel
100Ft. S of US-1 MM 52.7, Monroe, FL
Card Sound Road
FairOver: I.C.W.W
11.0 Miles SE of US 1, Monroe, FL
Yellow Tail Road
FairOver: Un-Named Canal
40Ft. N of Aviation Blvd., Monroe, FL
US 1 (SR 5)
FairOver: NILES CHANNEL
SUMMERLAND KEY (MM 25.5), Monroe, FL
MAIN PARK ROAD
FairOver: BUTTONWOOD CANAL
37.33 MILES FROM PARK ENT, Monroe, FL
Duck Key Drive
FairOver: Duck Key Channel
0.5 Mile E of US1 MM 61.1, Monroe, FL
CR 905A
FairOver: Steam Boat Creek
1.6 Miles N of CR 905, Monroe, FL
Old State Road 4A
FairOver: Sugarloaf Creek
5 Mi. E & S of US-1 MM 17, Monroe, FL
Sadowski Cswy.
FairOver: Beamer's Channel
0.2Mi. E of US-1 (MM53.5), Monroe, FL
Boca Chica(CR-941)
FairOver: Geiger Key Cut
2.8Mi S of SR-5 (MM 10.7), Monroe, FL
Bahama Road
FairOver: Doug's Canal
200Ft S/O US1 at MM 98.4, Monroe, FL
Caribbean Drive
FairOver: Summerland Key Cove
100Ft. E of US1 At MM24.5, Monroe, FL
Beach Road
FairOver: Calley Slough
US-1 MM 102, Monroe, FL
Fern Avenue
FairOver: Joe's Canal
230Ft. North of Watson Bl, Monroe, FL
MAIN PARK ROAD
FairOver: TAYLOR SLOUGH
0.9 MILES FROM PARK ENTRA, Monroe, FL
MAIN PARK ROAD
FairOver: TAYLOR SLOUGH
1.1 MILES FROM PARK ENTRA, Monroe, FL
US 1 SB (900016)
FairOver: BIG SPANISH CHANNEL
BAHIA HONDA KEY (MM 36.0), Monroe, FL
US 1 NB (900045)
FairOver: BIG SPANISH CHANNEL
BAHIA HONDA KEY (MM 36.0), Monroe, FL
Duck Key Drive
FairOver: Toms Harbor Channel
50Ft. E of US-1 MM61, Monroe, FL
Park Entrance Road
FairOver: Little Crawl Key Channel
220Ft. South of US-1, Monroe, FL
25th Street
FairOver: Un-named Canal
0.2 Mile S of US-1 MM48.5, Monroe, FL
CR 905A Card Sound
FairOver: Saunders Creek
3.5 Miles N of CR 905, Monroe, FL
US 1 (SR 5)
FairOver: SHARK CHANNEL
SHARK KEY (MM 11.3), Monroe, FL
US 1 (SR 5)
FairOver: SALT RUN
KEY WEST (MM 2.3), Monroe, FL
US 1 (SR 5)
FairOver: LOWER SUGARLOAF CHANNEL
SUGARLOAF KEY (MM 15.5), Monroe, FL
US 1 SB (900074)
FairOver: BOCA CHICA CHANNEL
BOCA CHICA KEY (MM 6.0), Monroe, FL
US 1 (SR 5)
FairOver: SPANISH HARBOR CHANNEL
BIG PINE KEY (MM 33.5), Monroe, FL
US 1 NB (900127)
FairOver: TAVERNIER CREEK
TAVERNIER KEY (MM 90.8), Monroe, FL
US 1 (SR 5)
FairOver: TEATABLE RELIEF
MATECUMBE KEY (MM 79.4), Monroe, FL
US 1 (SR 5)
FairOver: BOW CHANNEL
N SUGARLOAF KEY (MM 20.2), Monroe, FL
US 1 (SR 5)
FairOver: SADDLE BUNCH #2
N OF BOCA CHICA (MM14.6), Monroe, FL
Copa D Oro Road
FairOver: Un-Named Canal
150Ft. S of Sombrero Blvd, Monroe, FL
US 1 (SR 5)
FairOver: HARRIS CHANNEL
SUGARLOAF KEY (MM 16.5), Monroe, FL
US 1 (SR 5)
FairOver: NORTH HARRIS CHANNEL
SUGARLOAF KEY (MM 17.7), Monroe, FL
US 1 (SR 5)
FairOver: MISSOURI LITTLE DUCK CH.
LITTLE DUCK KEY (MM 39.6), Monroe, FL
US-1 (SR-5)
FairOver: OHIO-BAHIA HONDA CHANL
BAHIA HONDA KEY (MM 38.5), Monroe, FL
US 1 (SR 5)
FairOver: TORCH CHANNEL
TORCH KEY (MM 28.0), Monroe, FL
Coco Plum Drive
FairOver: Bonefish Bay
0.3 mi. E of US-1 MM 54.1, Monroe, FL
US 1 (SR 5)
FairOver: TOM'S HARBOR CUT
DUCK KEY (MM 61.4), Monroe, FL
US 1 (SR 5)
FairOver: TORCH RAMROD CHANNEL
TORCH RAMROD KEY(MM 27.7), Monroe, FL
Read our methodology - how this data is sourced, computed, and verified.
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Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.