US Bridges

I-75 (SR-93) NB over Curiosity Creek

Good

Manatee County, Florida · 5.0 MI N of I-275 · Structure no. 130106

Built
1980
45 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
180 ft
6 main spans
Daily traffic
85,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 (SR-93) NB over Curiosity Creek is a concrete slab carrying I-75 (SR-93) NB over Curiosity Creek in Manatee County, Florida. It was built in 1980, so it is 45 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 85,000 vehicles a day, roughly 12% of them trucks, projected to reach 14,475 by 2042. The structure is 180 ft (54.9 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-75 (SR-93) NB
CrossesCuriosity Creek
Location5.0 MI N of I-275
RouteInterstate 75
CountyManatee County
StateFlorida
Coordinates27.64134, -82.46012
Functional classRural Principal Arterial - Interstate

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.8 US tons
Inventory rating37.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span30 ft (9.1 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic85,000 (2023)
Projected traffic14,475 by 2042
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
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 (SR-93) NB over Curiosity Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is I-75 (SR-93) NB over Curiosity Creek 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 I-75 (SR-93) NB over Curiosity Creek carry?

About 85,000 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is I-75 (SR-93) NB over Curiosity Creek?

The structure is 180 ft (54.9 m) long with a longest span of 30 ft (9.1 m) and a deck 59 ft wide.

Who owns I-75 (SR-93) NB over Curiosity Creek?

It is owned by the State Highway Agency.