US Bridges

78th Street over Delaney Creek

Fair

Hillsborough County, Florida · 0.1MI N of Causeway Blvd · Structure no. 100246

Built
1963
62 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
20,500
2024 count
Owner
County
County Highway Agency

About this bridge

78th Street over Delaney Creek is a concrete culvert carrying 78th Street over Delaney Creek in Hillsborough County, Florida. It was built in 1963, so it is 62 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 20,500 vehicles a day, roughly 5% of them trucks, projected to reach 35,875 by 2044. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries78th Street
CrossesDelaney Creek
Location0.1MI N of Causeway Blvd
RouteCounty Highway 0
StateFlorida
Coordinates27.92374, -82.36871
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.7 US tons
Inventory rating22 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length32 ft (9.8 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,500 (2024)
Projected traffic35,875 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 78th Street over Delaney Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is 78th Street over Delaney Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does 78th Street over Delaney Creek carry?

About 20,500 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is 78th Street over Delaney Creek?

The structure is 32 ft (9.8 m) long with a longest span of 11 ft (3.3 m).

Who owns 78th Street over Delaney Creek?

It is owned by the County Highway Agency.