US Bridges

Four Mile Road over Four Mile Creek

Fair

Walton County, Florida · 0.1 MI South of SR 20 · Structure no. 604194

Built
2005
20 years old
Condition
Fair
inspected February 2025
Type
Channel Beam
Concrete
Length
34 ft
1 main span
Daily traffic
400
2023 count
Owner
County
County Highway Agency

About this bridge

Four Mile Road over Four Mile Creek is a concrete channel beam carrying Four Mile Road over Four Mile Creek in Walton County, Florida. It was built in 2005, so it is 20 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 400 vehicles a day, roughly 1% of them trucks, projected to reach 694 by 2042. The structure is 34 ft (10.4 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFour Mile Road
CrossesFour Mile Creek
Location0.1 MI South of SR 20
RouteCounty Highway 0
StateFlorida
Coordinates30.50194, -86.15
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.6 US tons
Inventory rating49.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic694 by 2042
Trucks1%
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 Four Mile Road over Four Mile Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Four Mile Road over Four Mile Creek 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 Four Mile Road over Four Mile Creek carry?

About 400 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Four Mile Road over Four Mile Creek?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns Four Mile Road over Four Mile Creek?

It is owned by the County Highway Agency.