US Bridges

CR-611 NB Off-Ramp over Lake Tarpon Outfall

Fair

Pinellas County, Florida · 300FT S of CR752 Tampa RD · Structure no. 154151

Built
1967
58 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
397 ft
7 main spans
Daily traffic
9,300
2024 count
Owner
County
County Highway Agency

About this bridge

CR-611 NB Off-Ramp over Lake Tarpon Outfall is a prestressed concrete stringer/multi-beam or girder carrying CR-611 NB Off-Ramp over Lake Tarpon Outfall in Pinellas County, Florida. It was built in 1967, so it is 58 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 9,300 vehicles a day, roughly 4% of them trucks, projected to reach 16,136 by 2046. The structure is 397 ft (120.9 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR-611 NB Off-Ramp
CrossesLake Tarpon Outfall
Location300FT S of CR752 Tampa RD
RouteCounty Highway 611
CountyPinellas County
StateFlorida
Coordinates28.05912, -82.71039
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40.2 US tons
Inventory rating24.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length397 ft (120.9 m)
Longest span57 ft (17.4 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,300 (2024)
Projected traffic16,136 by 2046
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR-611 NB Off-Ramp over Lake Tarpon Outfall built?

It was built in 1967, making it 58 years old in 2025.

What condition is CR-611 NB Off-Ramp over Lake Tarpon Outfall 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 July 2024.

How much traffic does CR-611 NB Off-Ramp over Lake Tarpon Outfall carry?

About 9,300 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is CR-611 NB Off-Ramp over Lake Tarpon Outfall?

The structure is 397 ft (120.9 m) long with a longest span of 57 ft (17.4 m) and a deck 33 ft wide.

Who owns CR-611 NB Off-Ramp over Lake Tarpon Outfall?

It is owned by the County Highway Agency.