US Bridges

US 41 NB over Maria Creek

Fair

Knox County, Indiana · 02.25 S SR 550 · Structure no. 014800

Built
1971
54 years old, rebuilt 1984
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
207 ft
3 main spans
Daily traffic
6,328
2004 count
Owner
State
State Highway Agency

About this bridge

US 41 NB over Maria Creek is a steel continuous stringer/multi-beam or girder carrying US 41 NB over Maria Creek in Knox County, Indiana. It was built in 1971 and reconstructed in 1984, so it is 54 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 6,328 vehicles a day, roughly 10% of them trucks, projected to reach 8,765 by 2030. The structure is 207 ft (63 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 41 NB
CrossesMaria Creek
Location02.25 S SR 550
RouteU.S. Route 41
StateIndiana
Coordinates38.77331, -87.46728
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.1 US tons
Inventory rating32.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length207 ft (63 m)
Longest span77 ft (23.4 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,328 (2004)
Projected traffic8,765 by 2030
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 41 NB over Maria Creek built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1984.

What condition is US 41 NB over Maria Creek 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 December 2023.

How much traffic does US 41 NB over Maria Creek carry?

About 6,328 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is US 41 NB over Maria Creek?

The structure is 207 ft (63 m) long with a longest span of 77 ft (23.4 m) and a deck 42 ft wide.

Who owns US 41 NB over Maria Creek?

It is owned by the State Highway Agency.