US Bridges

Bruce B. Downs SB over Trout Creek

Good

Hillsborough County, Florida · 1.0 MI N of I-75 (SR-93) · Structure no. 104502

Built
1989
36 years old, rebuilt 2012
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
132 ft
3 main spans
Daily traffic
57,500
2023 count
Owner
County
County Highway Agency

About this bridge

Bruce B. Downs SB over Trout Creek is a prestressed concrete stringer/multi-beam or girder carrying Bruce B. Downs SB over Trout Creek in Hillsborough County, Florida. It was built in 1989 and reconstructed in 2012, so it is 36 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 57,500 vehicles a day, roughly 10% of them trucks, projected to reach 99,763 by 2042. The structure is 132 ft (40.2 m) long and 62 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesBruce B. Downs SB
CrossesTrout Creek
Location1.0 MI N of I-75 (SR-93)
RouteCounty Highway 581
StateFlorida
Coordinates28.13464, -82.36178
Functional classUrban Minor 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.
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 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 rating60.8 US tons
Inventory rating36.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length132 ft (40.2 m)
Longest span44 ft (13.4 m)
Deck width62 ft (19 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57,500 (2023)
Projected traffic99,763 by 2042
Trucks10%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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 SB over Trout Creek built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 2012.

What condition is Bruce B. Downs SB 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 Bruce B. Downs SB over Trout Creek carry?

About 57,500 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Bruce B. Downs SB over Trout Creek?

The structure is 132 ft (40.2 m) long with a longest span of 44 ft (13.4 m) and a deck 62 ft wide.

Who owns Bruce B. Downs SB over Trout Creek?

It is owned by the County Highway Agency.