US Bridges

Harbor Drive over Boca Grande Canal

Good

Lee County, Florida · 0.1 MI South of 4th ST · Structure no. 124027

Built
1970
55 years old
Condition
Good
inspected July 2023
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
4,710
2023 count
Owner
County
County Highway Agency

About this bridge

Harbor Drive over Boca Grande Canal is a prestressed concrete slab carrying Harbor Drive over Boca Grande Canal in Lee County, Florida. It was built in 1970, so it is 55 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,710 vehicles a day, roughly 1% of them trucks, projected to reach 4,946 by 2042. The structure is 41 ft (12.5 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHarbor Drive
CrossesBoca Grande Canal
Location0.1 MI South of 4th ST
RouteCounty Highway 0
CountyLee County
StateFlorida
Coordinates26.74943, -82.25661
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span41 ft (12.5 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,710 (2023)
Projected traffic4,946 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Harbor Drive over Boca Grande Canal built?

It was built in 1970, making it 55 years old in 2025.

What condition is Harbor Drive over Boca Grande Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Harbor Drive over Boca Grande Canal carry?

About 4,710 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Harbor Drive over Boca Grande Canal?

The structure is 41 ft (12.5 m) long with a longest span of 41 ft (12.5 m) and a deck 36 ft wide.

Who owns Harbor Drive over Boca Grande Canal?

It is owned by the County Highway Agency.