US Bridges

SW Pine Island RD over Porpoise Pass Canal

Good

Lee County, Florida · 2.0 MI West of CR-765 · Structure no. 120128

Built
1979
46 years old
Condition
Good
inspected August 2023
Type
Slab
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
10,500
2023 count
Owner
County
County Highway Agency

About this bridge

SW Pine Island RD over Porpoise Pass Canal is a prestressed concrete slab carrying SW Pine Island RD over Porpoise Pass Canal in Lee County, Florida. It was built in 1979, so it is 46 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 10,500 vehicles a day, roughly 10% of them trucks, projected to reach 11,025 by 2042. The structure is 90 ft (27.4 m) long and 42 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSW Pine Island RD
CrossesPorpoise Pass Canal
Location2.0 MI West of CR-765
RouteCounty Highway 78
StateFlorida
Coordinates26.63025, -82.07
Functional classRural Major 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 rating76.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width42 ft (12.7 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2023)
Projected traffic11,025 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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 SW Pine Island RD over Porpoise Pass Canal built?

It was built in 1979, making it 46 years old in 2025.

What condition is SW Pine Island RD over Porpoise Pass 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 August 2023.

How much traffic does SW Pine Island RD over Porpoise Pass Canal carry?

About 10,500 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SW Pine Island RD over Porpoise Pass Canal?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.

Who owns SW Pine Island RD over Porpoise Pass Canal?

It is owned by the County Highway Agency.