US Bridges

Smith Ryals Road over Howell Creek

Good

Hillsborough County, Florida · 0.1MI S of Trapnell Road · Structure no. 104424

Built
1973
52 years old
Condition
Good
inspected December 2023
Type
Channel Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
5,240
2023 count
Owner
County
County Highway Agency

About this bridge

Smith Ryals Road over Howell Creek is a prestressed concrete channel beam carrying Smith Ryals Road over Howell Creek in Hillsborough County, Florida. It was built in 1973, so it is 52 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 5,240 vehicles a day, roughly 3% of them trucks, projected to reach 6,288 by 2042. The structure is 31 ft (9.4 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSmith Ryals Road
CrossesHowell Creek
Location0.1MI S of Trapnell Road
RouteCounty Highway 0
StateFlorida
Coordinates27.96487, -82.08842
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.5 US tons
Inventory rating42.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,240 (2023)
Projected traffic6,288 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Smith Ryals Road over Howell Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Smith Ryals Road over Howell 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 December 2023.

How much traffic does Smith Ryals Road over Howell Creek carry?

About 5,240 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Smith Ryals Road over Howell Creek?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 32 ft wide.

Who owns Smith Ryals Road over Howell Creek?

It is owned by the County Highway Agency.