US Bridges

SR-789 over Intracoastal Waterway

Good

Sarasota County, Florida · 0.5 MI W of US-41 (SR-45) · Structure no. 170176

Built
2003
22 years old
Condition
Good
inspected January 2024
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
3,097 ft
11 main spans
Daily traffic
37,000
2024 count
Owner
State
State Highway Agency

About this bridge

SR-789 over Intracoastal Waterway is a prestressed concrete continuous segmental box girder carrying SR-789 over Intracoastal Waterway in Sarasota County, Florida. It was built in 2003, so it is 22 years old, younger 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 37,000 vehicles a day, roughly 4% of them trucks, projected to reach 46,250 by 2044. The structure is 3,097 ft (943.9 m) long and 106 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesSR-789
CrossesIntracoastal Waterway
Location0.5 MI W of US-41 (SR-45)
RouteState Highway 789
StateFlorida
Coordinates27.33178, -82.55645
Functional classUrban Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.4 US tons
Inventory rating40.5 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckOther
Main spans11
Design loadHS 20
Structure length3,097 ft (943.9 m)
Longest span300 ft (91.5 m)
Deck width106 ft (32.4 m)
Roadway width79 ft (24 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,000 (2024)
Projected traffic46,250 by 2044
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed28 mi (45 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was SR-789 over Intracoastal Waterway built?

It was built in 2003, making it 22 years old in 2025.

What condition is SR-789 over Intracoastal Waterway 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 January 2024.

How much traffic does SR-789 over Intracoastal Waterway carry?

About 37,000 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is SR-789 over Intracoastal Waterway?

The structure is 3,097 ft (943.9 m) long with a longest span of 300 ft (91.5 m) and a deck 106 ft wide.

Who owns SR-789 over Intracoastal Waterway?

It is owned by the State Highway Agency.