US Bridges

US 50 WB over Dunn Ditch

Fair

Knox County, Indiana · 01.52 E SR 241 · Structure no. 018281

Built
1999
26 years old, rebuilt 2018
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
104 ft
3 main spans
Daily traffic
4,597
2004 count
Owner
State
State Highway Agency

About this bridge

US 50 WB over Dunn Ditch is a concrete continuous slab carrying US 50 WB over Dunn Ditch in Knox County, Indiana. It was built in 1999 and reconstructed in 2018, so it is 26 years old, younger 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 4,597 vehicles a day, roughly 10% of them trucks, projected to reach 6,367 by 2032. The structure is 104 ft (31.6 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 50 WB
CrossesDunn Ditch
Location01.52 E SR 241
RouteU.S. Route 50
StateIndiana
Coordinates38.64645, -87.27494
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating55.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length104 ft (31.6 m)
Longest span40 ft (12.1 m)
Deck width44 ft (13.3 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,597 (2004)
Projected traffic6,367 by 2032
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 WB over Dunn Ditch built?

It was built in 1999, making it 26 years old in 2025. It was reconstructed in 2018.

What condition is US 50 WB over Dunn Ditch 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 August 2023.

How much traffic does US 50 WB over Dunn Ditch carry?

About 4,597 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is US 50 WB over Dunn Ditch?

The structure is 104 ft (31.6 m) long with a longest span of 40 ft (12.1 m) and a deck 44 ft wide.

Who owns US 50 WB over Dunn Ditch?

It is owned by the State Highway Agency.