US Bridges

Port Sutton Road over Gannon Sta Discharge 2

Good

Hillsborough County, Florida · 1.2MI West of US-41 · Structure no. 104137

Built
1965
60 years old
Condition
Good
inspected October 2023
Type
Slab
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
2,000
2023 count
Owner
County
County Highway Agency

About this bridge

Port Sutton Road over Gannon Sta Discharge 2 is a prestressed concrete slab carrying Port Sutton Road over Gannon Sta Discharge 2 in Hillsborough 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 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 2,000 vehicles a day, roughly 40% of them trucks, projected to reach 3,470 by 2042. The structure is 37 ft (11.3 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPort Sutton Road
CrossesGannon Sta Discharge 2
Location1.2MI West of US-41
RouteCounty Highway 0
StateFlorida
Coordinates27.90641, -82.42228
Functional classRural Local

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 protection9 ExcellentNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.8 US tons
Inventory rating29.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span37 ft (11.3 m)
Deck width32 ft (9.9 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2023)
Projected traffic3,470 by 2042
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$270,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Port Sutton Road over Gannon Sta Discharge 2 built?

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

What condition is Port Sutton Road over Gannon Sta Discharge 2 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 October 2023.

How much traffic does Port Sutton Road over Gannon Sta Discharge 2 carry?

About 2,000 vehicles per day (2023 count), of which roughly 40% are trucks.

How long is Port Sutton Road over Gannon Sta Discharge 2?

The structure is 37 ft (11.3 m) long with a longest span of 37 ft (11.3 m) and a deck 32 ft wide.

Who owns Port Sutton Road over Gannon Sta Discharge 2?

It is owned by the County Highway Agency.