US Bridges

SR81 over Oakgrove Branch

Good

Walton County, Florida · 0.8 Mi. S of County Line · Structure no. 600034

Built
1970
55 years old, rebuilt 1991
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
2,900
2022 count
Owner
State
State Highway Agency

About this bridge

SR81 over Oakgrove Branch is a concrete culvert carrying SR81 over Oakgrove Branch in Walton County, Florida. It was built in 1970 and reconstructed in 1991, 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 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 2,900 vehicles a day, roughly 10% of them trucks, projected to reach 5,032 by 2044. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 16.8 mi (27 km).

CarriesSR81
CrossesOakgrove Branch
Location0.8 Mi. S of County Line
RouteState Highway 81
StateFlorida
Coordinates30.69417, -85.93639
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2022)
Projected traffic5,032 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR81 over Oakgrove Branch built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1991.

What condition is SR81 over Oakgrove Branch 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 SR81 over Oakgrove Branch carry?

About 2,900 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SR81 over Oakgrove Branch?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns SR81 over Oakgrove Branch?

It is owned by the State Highway Agency.