US Bridges

Mossy Head Schl RD over Blackstone Creek

Good

Walton County, Florida · 0.16 MI North of US 90 · Structure no. 604244

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

About this bridge

Mossy Head Schl RD over Blackstone Creek is a concrete channel beam carrying Mossy Head Schl RD over Blackstone 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, roughly 1% of them trucks, projected to reach 174 by 2042. The structure is 105 ft (32 m) long and 45 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesMossy Head Schl RD
CrossesBlackstone Creek
Location0.16 MI North of US 90
RouteCounty Highway 0
CountyWalton County
StateFlorida
Coordinates30.74239, -86.33289
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 protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating26.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length105 ft (32 m)
Longest span35 ft (10.7 m)
Deck width45 ft (13.6 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic174 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 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 Mossy Head Schl RD over Blackstone Creek built?

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

What condition is Mossy Head Schl RD over Blackstone 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 Mossy Head Schl RD over Blackstone Creek carry?

About 100 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Mossy Head Schl RD over Blackstone Creek?

The structure is 105 ft (32 m) long with a longest span of 35 ft (10.7 m) and a deck 45 ft wide.

Who owns Mossy Head Schl RD over Blackstone Creek?

It is owned by the County Highway Agency.