US Bridges

US 41 over Thurman Ditch

Fair

Gibson County, Indiana · 01.49 N SR 68 · Structure no. 014430

Built
1950
75 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
35 ft
1 main span
Daily traffic
22,693
2004 count
Owner
State
State Highway Agency

About this bridge

US 41 over Thurman Ditch is a concrete culvert carrying US 41 over Thurman Ditch in Gibson County, Indiana. It was built in 1950, so it is 75 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 22,693 vehicles a day, roughly 10% of them trucks, projected to reach 31,430 by 2034. The structure is 35 ft (10.6 m) long and 114 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 41
CrossesThurman Ditch
Location01.49 N SR 68
RouteU.S. Route 41
StateIndiana
Coordinates38.21458, -87.55961
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100 US tons
Inventory rating64.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length35 ft (10.6 m)
Longest span35 ft (10.6 m)
Deck width114 ft (34.6 m)
Roadway width111 ft (33.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,693 (2004)
Projected traffic31,430 by 2034
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 41 over Thurman Ditch built?

It was built in 1950, making it 75 years old in 2025.

What condition is US 41 over Thurman 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 May 2024.

How much traffic does US 41 over Thurman Ditch carry?

About 22,693 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is US 41 over Thurman Ditch?

The structure is 35 ft (10.6 m) long with a longest span of 35 ft (10.6 m) and a deck 114 ft wide.

Who owns US 41 over Thurman Ditch?

It is owned by the State Highway Agency.