US Bridges

CR 30A over Oyster Lake Outfall

Good

Walton County, Florida · 1.07 MI W of South CR 393 · Structure no. 604232

Built
2015
10 years old
Condition
Good
inspected February 2025
Type
Tee Beam
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
6,500
2025 count
Owner
County
County Highway Agency

About this bridge

CR 30A over Oyster Lake Outfall is a prestressed concrete tee beam carrying CR 30A over Oyster Lake Outfall in Walton County, Florida. It was built in 2015, so it is 10 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 6,500 vehicles a day, roughly 18% of them trucks, projected to reach 11,278 by 2047. The structure is 61 ft (18.5 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 30A
CrossesOyster Lake Outfall
Location1.07 MI W of South CR 393
RouteCounty Highway 30A
StateFlorida
Coordinates30.35179, -86.24713
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.9 US tons
Inventory rating45.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length61 ft (18.5 m)
Longest span61 ft (18.5 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2025)
Projected traffic11,278 by 2047
Trucks18%
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 CR 30A over Oyster Lake Outfall built?

It was built in 2015, making it 10 years old in 2025.

What condition is CR 30A over Oyster Lake Outfall 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 February 2025.

How much traffic does CR 30A over Oyster Lake Outfall carry?

About 6,500 vehicles per day (2025 count), of which roughly 18% are trucks.

How long is CR 30A over Oyster Lake Outfall?

The structure is 61 ft (18.5 m) long with a longest span of 61 ft (18.5 m) and a deck 36 ft wide.

Who owns CR 30A over Oyster Lake Outfall?

It is owned by the County Highway Agency.