US Bridges

SR85 over Boggy Bayou

Fair

Okaloosa County, Florida · 1.1MI W of SR285 · Structure no. 570125

Built
2001
24 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
310 ft
12 main spans
Daily traffic
47,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR85 over Boggy Bayou is a concrete continuous slab carrying SR85 over Boggy Bayou in Okaloosa County, Florida. It was built in 2001, so it is 24 years old, younger 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 47,500 vehicles a day, roughly 8% of them trucks, projected to reach 82,412 by 2044. The structure is 310 ft (94.6 m) long and 122 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR85
CrossesBoggy Bayou
Location1.1MI W of SR285
RouteState Highway 85
CountyOkaloosa County
StateFlorida
Coordinates30.52319, -86.49902
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating61.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length310 ft (94.6 m)
Longest span26 ft (7.9 m)
Deck width122 ft (37.1 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,500 (2022)
Projected traffic82,412 by 2044
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

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 SR85 over Boggy Bayou built?

It was built in 2001, making it 24 years old in 2025.

What condition is SR85 over Boggy Bayou 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 February 2025.

How much traffic does SR85 over Boggy Bayou carry?

About 47,500 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is SR85 over Boggy Bayou?

The structure is 310 ft (94.6 m) long with a longest span of 26 ft (7.9 m) and a deck 122 ft wide.

Who owns SR85 over Boggy Bayou?

It is owned by the State Highway Agency.