US Bridges

I-75 over Cosmic Waterway

Fair

Sarasota County, Florida · 1.25MI S of Sumter Blvd · Structure no. 170157

Built
1981
44 years old
Condition
Fair
inspected March 2025
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
62,500
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 over Cosmic Waterway is a concrete culvert carrying I-75 over Cosmic Waterway in Sarasota County, Florida. It was built in 1981, so it is 44 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.

It carries about 62,500 vehicles a day, roughly 14% of them trucks, projected to reach 78,125 by 2042. The structure is 31 ft (9.5 m) long.

Location

Open in Google Maps
CarriesI-75
CrossesCosmic Waterway
Location1.25MI S of Sumter Blvd
RouteInterstate 75
CountySarasota County
StateFlorida
Coordinates27.09906, -82.17997
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length31 ft (9.5 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,500 (2023)
Projected traffic78,125 by 2042
Trucks14%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 over Cosmic Waterway built?

It was built in 1981, making it 44 years old in 2025.

What condition is I-75 over Cosmic Waterway 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 March 2025.

How much traffic does I-75 over Cosmic Waterway carry?

About 62,500 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I-75 over Cosmic Waterway?

The structure is 31 ft (9.5 m) long with a longest span of 10 ft (3.2 m).

Who owns I-75 over Cosmic Waterway?

It is owned by the State Highway Agency.