US Bridges

US 50 EB over Wabash Riv & Ill SR 33

Fair

Knox County, Indiana · 01.85 W US 41 · Structure no. 018140

Built
1960
65 years old, rebuilt 2003
Condition
Fair
inspected June 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
1,746 ft
6 main spans
Daily traffic
6,523
2022 count
Owner
State
State Highway Agency

About this bridge

US 50 EB over Wabash Riv & Ill SR 33 is a steel continuous girder and floorbeam system carrying US 50 EB over Wabash Riv & Ill SR 33 in Knox County, Indiana. It was built in 1960 and reconstructed in 2003, so it is 65 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 6,523 vehicles a day, roughly 10% of them trucks, projected to reach 7,530 by 2042. The structure is 1,746 ft (532.1 m) long and 36 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 50 EB
CrossesWabash Riv & Ill SR 33
Location01.85 W US 41
RouteU.S. Route 50
StateIndiana
Coordinates38.70716, -87.5189
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating40.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6 (+12 approach)
Design loadHS 20
Structure length1,746 ft (532.1 m)
Longest span150 ft (45.7 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,523 (2022)
Projected traffic7,530 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 50 EB over Wabash Riv & Ill SR 33 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2003.

What condition is US 50 EB over Wabash Riv & Ill SR 33 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 June 2024.

How much traffic does US 50 EB over Wabash Riv & Ill SR 33 carry?

About 6,523 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is US 50 EB over Wabash Riv & Ill SR 33?

The structure is 1,746 ft (532.1 m) long with a longest span of 150 ft (45.7 m) and a deck 36 ft wide.

Who owns US 50 EB over Wabash Riv & Ill SR 33?

It is owned by the State Highway Agency.