US Bridges

Port Harbour Pkwy over Trunk Ditch

Good

Manatee County, Florida · 1.4 W/Upper Manatee Rv RD · Structure no. 134158

Built
2002
23 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
2,617
2023 count
Owner
County
County Highway Agency

About this bridge

Port Harbour Pkwy over Trunk Ditch is a concrete culvert carrying Port Harbour Pkwy over Trunk Ditch in Manatee County, Florida. It was built in 2002, so it is 23 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,617 vehicles a day, roughly 1% of them trucks, projected to reach 3,271 by 2042. The structure is 36 ft (11 m) long. If it were closed, the detour would be 2.5 mi (4 km).

CarriesPort Harbour Pkwy
CrossesTrunk Ditch
Location1.4 W/Upper Manatee Rv RD
RouteCounty Highway 0
StateFlorida
Coordinates27.50736, -82.45456
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating37.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic2,617 (2023)
Projected traffic3,271 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Port Harbour Pkwy over Trunk Ditch built?

It was built in 2002, making it 23 years old in 2025.

What condition is Port Harbour Pkwy over Trunk Ditch 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 April 2023.

How much traffic does Port Harbour Pkwy over Trunk Ditch carry?

About 2,617 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Port Harbour Pkwy over Trunk Ditch?

The structure is 36 ft (11 m) long with a longest span of 9 ft (2.7 m).

Who owns Port Harbour Pkwy over Trunk Ditch?

It is owned by the County Highway Agency.