US Bridges

County Line Road over Trout Creek

Good

Hillsborough County, Florida · 0.5 MI West of CR-581 · Structure no. 104132

Built
1985
40 years old, rebuilt 2021
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
170 ft
3 main spans
Daily traffic
12,900
2023 count
Owner
County
County Highway Agency

About this bridge

County Line Road over Trout Creek is a prestressed concrete stringer/multi-beam or girder carrying County Line Road over Trout Creek in Hillsborough County, Florida. It was built in 1985 and reconstructed in 2021, so it is 40 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 12,900 vehicles a day, roughly 5% of them trucks, projected to reach 22,382 by 2042. The structure is 170 ft (51.9 m) long and 52 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCounty Line Road
CrossesTrout Creek
Location0.5 MI West of CR-581
RouteCounty Highway 0
StateFlorida
Coordinates28.17128, -82.36217
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 inspectionApril 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.3 US tons
Inventory rating52.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length170 ft (51.9 m)
Longest span57 ft (17.4 m)
Deck width52 ft (15.7 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,900 (2023)
Projected traffic22,382 by 2042
Trucks5%
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 County Line Road over Trout Creek built?

It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2021.

What condition is County Line Road over Trout Creek 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 County Line Road over Trout Creek carry?

About 12,900 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is County Line Road over Trout Creek?

The structure is 170 ft (51.9 m) long with a longest span of 57 ft (17.4 m) and a deck 52 ft wide.

Who owns County Line Road over Trout Creek?

It is owned by the County Highway Agency.