US Bridges

Bruce B Downs NB over Trout Creek

Good

Hillsborough County, Florida · 1.0 Mile N of I-75 · Structure no. 104507

Built
2012
13 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
130 ft
3 main spans
Daily traffic
62,400
2024 count
Owner
County
County Highway Agency

About this bridge

Bruce B Downs NB over Trout Creek is a prestressed concrete stringer/multi-beam or girder carrying Bruce B Downs NB over Trout Creek in Hillsborough County, Florida. It was built in 2012, so it is 13 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 62,400 vehicles a day, roughly 10% of them trucks, projected to reach 73,600 by 2044. The structure is 130 ft (39.6 m) long and 56 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesBruce B Downs NB
CrossesTrout Creek
Location1.0 Mile N of I-75
RouteCounty Highway 581
StateFlorida
Coordinates28.1344, -82.36166
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating43.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length130 ft (39.6 m)
Longest span43 ft (13.2 m)
Deck width56 ft (17.1 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,400 (2024)
Projected traffic73,600 by 2044
Trucks10%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Bruce B Downs NB over Trout Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Bruce B Downs NB 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 2024.

How much traffic does Bruce B Downs NB over Trout Creek carry?

About 62,400 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Bruce B Downs NB over Trout Creek?

The structure is 130 ft (39.6 m) long with a longest span of 43 ft (13.2 m) and a deck 56 ft wide.

Who owns Bruce B Downs NB over Trout Creek?

It is owned by the County Highway Agency.