US Bridges

US-17 (SR-555) over CSX RR & Lk Shipp Canal

Good

Polk County, Florida · 0.5 MI South of SR-540 · Structure no. 160220

Built
1995
30 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
218 ft
3 main spans
Daily traffic
42,000
2024 count
Owner
State
State Highway Agency

About this bridge

US-17 (SR-555) over CSX RR & Lk Shipp Canal is a prestressed concrete stringer/multi-beam or girder carrying US-17 (SR-555) over CSX RR & Lk Shipp Canal in Polk County, Florida. It was built in 1995, so it is 30 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 42,000 vehicles a day, roughly 6% of them trucks, projected to reach 72,870 by 2044. The structure is 218 ft (66.4 m) long and 118 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesUS-17 (SR-555)
CrossesCSX RR & Lk Shipp Canal
Location0.5 MI South of SR-540
RouteU.S. Route 17
CountyPolk County
StateFlorida
Coordinates27.99812, -81.73477
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating73.5 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length218 ft (66.4 m)
Longest span94 ft (28.7 m)
Deck width118 ft (35.9 m)
Roadway width103 ft (31.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42,000 (2024)
Projected traffic72,870 by 2044
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad and waterway
Detour if closed12.4 mi (20 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-555) over CSX RR & Lk Shipp Canal built?

It was built in 1995, making it 30 years old in 2025.

What condition is US-17 (SR-555) over CSX RR & Lk Shipp Canal 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-555) over CSX RR & Lk Shipp Canal carry?

About 42,000 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is US-17 (SR-555) over CSX RR & Lk Shipp Canal?

The structure is 218 ft (66.4 m) long with a longest span of 94 ft (28.7 m) and a deck 118 ft wide.

Who owns US-17 (SR-555) over CSX RR & Lk Shipp Canal?

It is owned by the State Highway Agency.