US Bridges

Hercules Avenue over Allen Creek

Fair

Pinellas County, Florida · 1.0 MI South of SR-60 · Structure no. 155504

Built
1965
60 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
9,100
2025 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hercules Avenue over Allen Creek is a concrete culvert carrying Hercules Avenue over Allen Creek in Pinellas County, Florida. It was built in 1965, so it is 60 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 9,100 vehicles a day, roughly 1% of them trucks, projected to reach 15,788 by 2045. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHercules Avenue
CrossesAllen Creek
Location1.0 MI South of SR-60
RouteCity Street 0
CountyPinellas County
StateFlorida
Coordinates27.95072, -82.75426
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.4 US tons
Inventory rating43.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 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 traffic9,100 (2025)
Projected traffic15,788 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hercules Avenue over Allen Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Hercules Avenue over Allen Creek 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 January 2025.

How much traffic does Hercules Avenue over Allen Creek carry?

About 9,100 vehicles per day (2025 count), of which roughly 1% are trucks.

How long is Hercules Avenue over Allen Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3.2 m).

Who owns Hercules Avenue over Allen Creek?

It is owned by the City or Municipal Highway Agency.