US Bridges

US-17 (SR-35) over Six Mile Creek

Good

Polk County, Florida · 2.3 MI South of SR-60 · Structure no. 160012

Built
1970
55 years old, rebuilt 1986
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
19,700
2024 count
Owner
State
State Highway Agency

About this bridge

US-17 (SR-35) over Six Mile Creek is a concrete culvert carrying US-17 (SR-35) over Six Mile Creek in Polk County, Florida. It was built in 1970 and reconstructed in 1986, 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 19,700 vehicles a day, roughly 20% of them trucks, projected to reach 34,180 by 2044. The structure is 43 ft (13.2 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS-17 (SR-35)
CrossesSix Mile Creek
Location2.3 MI South of SR-60
RouteU.S. Route 17
StateFlorida
Coordinates27.86372, -81.82868
Functional classUrban Other Principal Arterial

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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length43 ft (13.2 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,700 (2024)
Projected traffic34,180 by 2044
Trucks20%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 US-17 (SR-35) over Six Mile Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1986.

What condition is US-17 (SR-35) over Six Mile 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 October 2024.

How much traffic does US-17 (SR-35) over Six Mile Creek carry?

About 19,700 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is US-17 (SR-35) over Six Mile Creek?

The structure is 43 ft (13.2 m) long with a longest span of 11 ft (3.3 m).

Who owns US-17 (SR-35) over Six Mile Creek?

It is owned by the State Highway Agency.