US Bridges

Treasure Isl Cswy over I.C.W.W.

Good

Pinellas County, Florida · 1.0 MI E/O Gulf Blvd. · Structure no. 157801

Built
2007
18 years old
Condition
Good
inspected September 2023
Type
Movable - Bascule
Steel
Length
1,014 ft
1 main span
Daily traffic
20,500
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Treasure Isl Cswy over I.C.W.W. is a steel movable - bascule carrying Treasure Isl Cswy over I.C.W.W. in Pinellas County, Florida. It was built in 2007, so it is 18 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 20,500 vehicles a day, roughly 5% of them trucks, projected to reach 25,625 by 2042. The structure is 1,014 ft (309.1 m) long and 79 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesTreasure Isl Cswy
CrossesI.C.W.W.
Location1.0 MI E/O Gulf Blvd.
RouteCity Street 0
CountyPinellas County
StateFlorida
Coordinates27.77082, -82.7534
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
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 rating63.1 US tons
Inventory rating37.8 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+12 approach)
Design loadHS 20
Structure length1,014 ft (309.1 m)
Longest span241 ft (73.5 m)
Deck width79 ft (24.2 m)
Roadway width59 ft (18.1 m)
Vertical clearance over deck19 ft (5.7 m)

Traffic and service

Average daily traffic20,500 (2023)
Projected traffic25,625 by 2042
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Treasure Isl Cswy over I.C.W.W. built?

It was built in 2007, making it 18 years old in 2025.

What condition is Treasure Isl Cswy over I.C.W.W. 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 September 2023.

How much traffic does Treasure Isl Cswy over I.C.W.W. carry?

About 20,500 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Treasure Isl Cswy over I.C.W.W.?

The structure is 1,014 ft (309.1 m) long with a longest span of 241 ft (73.5 m) and a deck 79 ft wide.

Who owns Treasure Isl Cswy over I.C.W.W.?

It is owned by the City or Municipal Highway Agency.