US Bridges

Star Island Way over Canal

FairPosted for load

Martin County, Florida · 160FT. E of Soundings DR · Structure no. 894018

Built
1968
57 years old
Condition
Fair
inspected December 2023
Type
Slab
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
121
2023 count
Owner
County
County Highway Agency

About this bridge

Star Island Way over Canal is a prestressed concrete slab carrying Star Island Way over Canal in Martin County, Florida. It was built in 1968, so it is 57 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 121 vehicles a day, roughly 2% of them trucks, projected to reach 180 by 2042. The structure is 30 ft (9.1 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesStar Island Way
CrossesCanal
Location160FT. E of Soundings DR
RouteCounty Highway 0
CountyMartin County
StateFlorida
Coordinates27.07781, -80.13489
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating75.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.6 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic121 (2023)
Projected traffic180 by 2042
Trucks2%
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 Star Island Way over Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is Star Island Way over Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does Star Island Way over Canal carry?

About 121 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Star Island Way over Canal?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Star Island Way over Canal?

It is owned by the County Highway Agency.