US Bridges

I10 SR8 over SR285

Fair

Walton County, Florida · 2.4 Mi. E of County Line · Structure no. 600061

Built
1970
55 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
195 ft
2 main spans
Daily traffic
13,839
2022 count
Owner
State
State Highway Agency

About this bridge

I10 SR8 over SR285 is a prestressed concrete stringer/multi-beam or girder carrying I10 SR8 over SR285 in Walton County, Florida. It was built in 1970, so it is 55 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 5 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 13,839 vehicles a day, roughly 28% of them trucks, projected to reach 24,010 by 2044. The structure is 195 ft (59.4 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesI10 SR8
CrossesSR285
Location2.4 Mi. E of County Line
RouteInterstate 10
CountyWalton County
StateFlorida
Coordinates30.73275, -86.35122
Functional classRural Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating72.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length195 ft (59.4 m)
Longest span97 ft (29.7 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,839 (2022)
Projected traffic24,010 by 2044
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I10 SR8 over SR285 built?

It was built in 1970, making it 55 years old in 2025.

What condition is I10 SR8 over SR285 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 September 2023.

How much traffic does I10 SR8 over SR285 carry?

About 13,839 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is I10 SR8 over SR285?

The structure is 195 ft (59.4 m) long with a longest span of 97 ft (29.7 m) and a deck 43 ft wide.

Who owns I10 SR8 over SR285?

It is owned by the State Highway Agency.