US Bridges

US 41 NB (middle) over US 50 WB Ramp to US 41 S

Good

Knox County, Indiana · 01.20 S US 50 · Structure no. 014700

Built
1967
58 years old, rebuilt 2017
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
145 ft
3 main spans
Daily traffic
19,317
2013 count
Owner
State
State Highway Agency

About this bridge

US 41 NB (middle) over US 50 WB Ramp to US 41 S is a steel continuous stringer/multi-beam or girder carrying US 41 NB (middle) over US 50 WB Ramp to US 41 S in Knox County, Indiana. It was built in 1967 and reconstructed in 2017, so it is 58 years old, older than the Indiana average of 46.6 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 19,317 vehicles a day, roughly 5% of them trucks, projected to reach 31,712 by 2030. The structure is 145 ft (44.1 m) long and 36 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 41 NB (middle)
CrossesUS 50 WB Ramp to US 41 S
Location01.20 S US 50
RouteU.S. Route 41
StateIndiana
Coordinates38.67842, -87.48778
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length145 ft (44.1 m)
Longest span54 ft (16.6 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic19,317 (2013)
Projected traffic31,712 by 2030
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 41 NB (middle) over US 50 WB Ramp to US 41 S built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2017.

What condition is US 41 NB (middle) over US 50 WB Ramp to US 41 S 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 December 2023.

How much traffic does US 41 NB (middle) over US 50 WB Ramp to US 41 S carry?

About 19,317 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is US 41 NB (middle) over US 50 WB Ramp to US 41 S?

The structure is 145 ft (44.1 m) long with a longest span of 54 ft (16.6 m) and a deck 36 ft wide.

Who owns US 41 NB (middle) over US 50 WB Ramp to US 41 S?

It is owned by the State Highway Agency.