US Bridges

SR-70 over Braden River Overflow

Fair

Manatee County, Florida · 5.6 MI E of I-75 · Structure no. 130114

Built
1970
55 years old, rebuilt 1977
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
19,800
2022 count
Owner
State
State Highway Agency

About this bridge

SR-70 over Braden River Overflow is a concrete culvert carrying SR-70 over Braden River Overflow in Manatee County, Florida. It was built in 1970 and reconstructed in 1977, 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 fair condition with a lowest component rating of 5 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 19,800 vehicles a day, roughly 11% of them trucks, projected to reach 34,353 by 2044. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesSR-70
CrossesBraden River Overflow
Location5.6 MI E of I-75
RouteState Highway 70
CountyManatee County
StateFlorida
Coordinates27.42494, -82.37322
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.9 US tons
Inventory rating20.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length43 ft (13.1 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,800 (2022)
Projected traffic34,353 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

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 SR-70 over Braden River Overflow built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1977.

What condition is SR-70 over Braden River Overflow 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 August 2023.

How much traffic does SR-70 over Braden River Overflow carry?

About 19,800 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is SR-70 over Braden River Overflow?

The structure is 43 ft (13.1 m) long with a longest span of 11 ft (3.4 m).

Who owns SR-70 over Braden River Overflow?

It is owned by the State Highway Agency.