US Bridges

Natural Bridge RD over Eightmile Creek

Good

Walton County, Florida · 3.5 MI W of SR-83 · Structure no. 604199

Built
2008
17 years old
Condition
Good
inspected December 2023
Type
Channel Beam
Concrete
Length
108 ft
3 main spans
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

Natural Bridge RD over Eightmile Creek is a concrete channel beam carrying Natural Bridge RD over Eightmile Creek in Walton County, Florida. It was built in 2008, so it is 17 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 100 vehicles a day, projected to reach 174 by 2042. The structure is 108 ft (32.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNatural Bridge RD
CrossesEightmile Creek
Location3.5 MI W of SR-83
RouteCounty Highway 0
CountyWalton County
StateFlorida
Coordinates30.95598, -86.19052
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating92 US tons
Inventory rating55 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length108 ft (32.9 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic174 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Natural Bridge RD over Eightmile Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Natural Bridge RD over Eightmile Creek 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 December 2023.

How much traffic does Natural Bridge RD over Eightmile Creek carry?

About 100 vehicles per day (2023 count).

How long is Natural Bridge RD over Eightmile Creek?

The structure is 108 ft (32.9 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns Natural Bridge RD over Eightmile Creek?

It is owned by the County Highway Agency.