US Bridges

US-17 NB over CSX R/R

Good

Polk County, Florida · 0.2MI S of CR-640 · Structure no. 160103

Built
1974
51 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
259 ft
3 main spans
Daily traffic
11,250
2024 count
Owner
State
State Highway Agency

About this bridge

US-17 NB over CSX R/R is a prestressed concrete stringer/multi-beam or girder carrying US-17 NB over CSX R/R in Polk County, Florida. It was built in 1974, so it is 51 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 11,250 vehicles a day, roughly 20% of them trucks, projected to reach 19,519 by 2044. The structure is 259 ft (79 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS-17 NB
CrossesCSX R/R
Location0.2MI S of CR-640
RouteU.S. Route 17
StateFlorida
Coordinates27.81636, -81.82105
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.7 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length259 ft (79 m)
Longest span87 ft (26.5 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,250 (2024)
Projected traffic19,519 by 2044
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-17 NB over CSX R/R built?

It was built in 1974, making it 51 years old in 2025.

What condition is US-17 NB over CSX R/R 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 NB over CSX R/R carry?

About 11,250 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is US-17 NB over CSX R/R?

The structure is 259 ft (79 m) long with a longest span of 87 ft (26.5 m) and a deck 42 ft wide.

Who owns US-17 NB over CSX R/R?

It is owned by the State Highway Agency.