US Bridges

Millside Road over Horsehead Creek

Good

Okaloosa County, Florida · 0.42MI W of Steel Mill CR · Structure no. 574184

Built
2013
12 years old
Condition
Good
inspected March 2023
Type
Channel Beam
Concrete
Length
150 ft
5 main spans
Daily traffic
75
2023 count
Owner
County
County Highway Agency

About this bridge

Millside Road over Horsehead Creek is a concrete channel beam carrying Millside Road over Horsehead Creek in Okaloosa County, Florida. It was built in 2013, so it is 12 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 75 vehicles a day, projected to reach 130 by 2042. The structure is 150 ft (45.8 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMillside Road
CrossesHorsehead Creek
Location0.42MI W of Steel Mill CR
CountyOkaloosa County
StateFlorida
Coordinates30.92778, -86.437
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating75 US tons
Inventory rating58 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHL 93
Structure length150 ft (45.8 m)
Longest span34 ft (10.4 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic130 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 Millside Road over Horsehead Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Millside Road over Horsehead 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 March 2023.

How much traffic does Millside Road over Horsehead Creek carry?

About 75 vehicles per day (2023 count).

How long is Millside Road over Horsehead Creek?

The structure is 150 ft (45.8 m) long with a longest span of 34 ft (10.4 m) and a deck 28 ft wide.

Who owns Millside Road over Horsehead Creek?

It is owned by the County Highway Agency.