US Bridges

South River Road over Branch of Myakka River

Good

Sarasota County, Florida · 100FT S/O US-41 · Structure no. 170055

Built
1965
60 years old, rebuilt 1996
Condition
Good
inspected March 2025
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
13,500
2023 count
Owner
County
County Highway Agency

About this bridge

South River Road over Branch of Myakka River is a concrete culvert carrying South River Road over Branch of Myakka River in Sarasota County, Florida. It was built in 1965 and reconstructed in 1996, so it is 60 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 13,500 vehicles a day, roughly 7% of them trucks, projected to reach 23,423 by 2042. The structure is 27 ft (8.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSouth River Road
CrossesBranch of Myakka River
Location100FT S/O US-41
RouteCounty Highway 777
StateFlorida
Coordinates27.04122, -82.29987
Functional classUrban 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2025
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 alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating68.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,500 (2023)
Projected traffic23,423 by 2042
Trucks7%
Lanes on structure7
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 South River Road over Branch of Myakka River built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1996.

What condition is South River Road over Branch of Myakka River 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 2025.

How much traffic does South River Road over Branch of Myakka River carry?

About 13,500 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is South River Road over Branch of Myakka River?

The structure is 27 ft (8.1 m) long with a longest span of 9 ft (2.7 m).

Who owns South River Road over Branch of Myakka River?

It is owned by the County Highway Agency.