US Bridges

I-75 SB over Palmer Blvd.

Fair

Sarasota County, Florida · 0.9 MI South of SR-780 · Structure no. 170081

Built
1979
46 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
136 ft
3 main spans
Daily traffic
127,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 SB over Palmer Blvd. is a prestressed concrete stringer/multi-beam or girder carrying I-75 SB over Palmer Blvd. in Sarasota 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 fair condition with a lowest component rating of 5 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 127,000 vehicles a day, roughly 12% of them trucks, projected to reach 220,345 by 2044. The structure is 136 ft (41.5 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-75 SB
CrossesPalmer Blvd.
Location0.9 MI South of SR-780
RouteInterstate 75
CountySarasota County
StateFlorida
Coordinates27.32611, -82.44784
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.4 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span60 ft (18.3 m)
Deck width59 ft (18 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic127,000 (2024)
Projected traffic220,345 by 2044
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 SB over Palmer Blvd. built?

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

What condition is I-75 SB over Palmer Blvd. 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 October 2023.

How much traffic does I-75 SB over Palmer Blvd. carry?

About 127,000 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is I-75 SB over Palmer Blvd.?

The structure is 136 ft (41.5 m) long with a longest span of 60 ft (18.3 m) and a deck 59 ft wide.

Who owns I-75 SB over Palmer Blvd.?

It is owned by the State Highway Agency.