US Bridges

Dorman Road over Little Fish Hawk

Fair

Hillsborough County, Florida · 0.1MI West of Boyette RD · Structure no. 104433

Built
1969
56 years old, rebuilt 1972
Condition
Fair
inspected December 2023
Type
Channel Beam
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
540
2023 count
Owner
County
County Highway Agency

About this bridge

Dorman Road over Little Fish Hawk is a prestressed concrete channel beam carrying Dorman Road over Little Fish Hawk in Hillsborough County, Florida. It was built in 1969 and reconstructed in 1972, so it is 56 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 540 vehicles a day, roughly 2% of them trucks, projected to reach 810 by 2042. The structure is 30 ft (9.1 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesDorman Road
CrossesLittle Fish Hawk
Location0.1MI West of Boyette RD
RouteCounty Highway 0
StateFlorida
Coordinates27.84276, -82.20236
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: 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 rating48.2 US tons
Inventory rating28.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic540 (2023)
Projected traffic810 by 2042
Trucks2%
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 Dorman Road over Little Fish Hawk built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1972.

What condition is Dorman Road over Little Fish Hawk 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 December 2023.

How much traffic does Dorman Road over Little Fish Hawk carry?

About 540 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Dorman Road over Little Fish Hawk?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.

Who owns Dorman Road over Little Fish Hawk?

It is owned by the County Highway Agency.