US Bridges

US 98 SR 30 over Porter Bar Creek

Fair

Franklin County, Florida · 2.0 Miles W of SR65 · Structure no. 490027

Built
1979
46 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
62 ft
2 main spans
Daily traffic
6,300
2022 count
Owner
State
State Highway Agency

About this bridge

US 98 SR 30 over Porter Bar Creek is a concrete continuous slab carrying US 98 SR 30 over Porter Bar Creek in Franklin County, Florida. It was built in 1979, so it is 46 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 6,300 vehicles a day, roughly 13% of them trucks, projected to reach 10,930 by 2044. The structure is 62 ft (18.9 m) long and 43 ft wide. If it were closed, the detour would be 90.1 mi (145 km).

CarriesUS 98 SR 30
CrossesPorter Bar Creek
Location2.0 Miles W of SR65
RouteU.S. Route 98
StateFlorida
Coordinates29.75, -84.85003
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating53.6 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length62 ft (18.9 m)
Longest span31 ft (9.4 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,300 (2022)
Projected traffic10,930 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed90.1 mi (145 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 98 SR 30 over Porter Bar Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is US 98 SR 30 over Porter Bar 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 June 2024.

How much traffic does US 98 SR 30 over Porter Bar Creek carry?

About 6,300 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US 98 SR 30 over Porter Bar Creek?

The structure is 62 ft (18.9 m) long with a longest span of 31 ft (9.4 m) and a deck 43 ft wide.

Who owns US 98 SR 30 over Porter Bar Creek?

It is owned by the State Highway Agency.