US Bridges

US98 SR30 over ST Joe Bay Inlet

Good

Gulf County, Florida · 0.9MILES W. of SR71 · Structure no. 510075

Built
2021
4 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
83 ft
3 main spans
Daily traffic
8,800
2022 count
Owner
State
State Highway Agency

About this bridge

US98 SR30 over ST Joe Bay Inlet is a concrete slab carrying US98 SR30 over ST Joe Bay Inlet in Gulf County, Florida. It was built in 2021, so it is 4 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 8,800 vehicles a day, roughly 13% of them trucks, projected to reach 15,268 by 2044. The structure is 83 ft (25.3 m) long and 47 ft wide. If it were closed, the detour would be 90.1 mi (145 km).

Location

Open in Google Maps
CarriesUS98 SR30
CrossesST Joe Bay Inlet
Location0.9MILES W. of SR71
RouteU.S. Route 98
CountyGulf County
StateFlorida
Coordinates29.79851, -85.30068
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating52.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length83 ft (25.3 m)
Longest span34 ft (10.4 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,800 (2022)
Projected traffic15,268 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 US98 SR30 over ST Joe Bay Inlet built?

It was built in 2021, making it 4 years old in 2025.

What condition is US98 SR30 over ST Joe Bay Inlet 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 August 2023.

How much traffic does US98 SR30 over ST Joe Bay Inlet carry?

About 8,800 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US98 SR30 over ST Joe Bay Inlet?

The structure is 83 ft (25.3 m) long with a longest span of 34 ft (10.4 m) and a deck 47 ft wide.

Who owns US98 SR30 over ST Joe Bay Inlet?

It is owned by the State Highway Agency.