US Bridges

Old SR 61 over US 41 Nb/Sb

Fair

Knox County, Indiana · 02.07 S US 50 · Structure no. 021840

Built
1967
58 years old, rebuilt 1998
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
194 ft
2 main spans
Daily traffic
4,807
2004 count
Owner
State
State Highway Agency

About this bridge

Old SR 61 over US 41 Nb/Sb is a steel continuous stringer/multi-beam or girder carrying Old SR 61 over US 41 Nb/Sb in Knox County, Indiana. It was built in 1967 and reconstructed in 1998, 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 fair condition with a lowest component rating of 5 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 4,807 vehicles a day, roughly 5% of them trucks, projected to reach 6,774 by 2032. The structure is 194 ft (59.1 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesOld SR 61
CrossesUS 41 Nb/Sb
Location02.07 S US 50
RouteCity Street 0
CountyKnox County
StateIndiana
Coordinates38.66947, -87.49859
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length194 ft (59.1 m)
Longest span61 ft (18.6 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,807 (2004)
Projected traffic6,774 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Old SR 61 over US 41 Nb/Sb built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1998.

What condition is Old SR 61 over US 41 Nb/Sb 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 September 2023.

How much traffic does Old SR 61 over US 41 Nb/Sb carry?

About 4,807 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is Old SR 61 over US 41 Nb/Sb?

The structure is 194 ft (59.1 m) long with a longest span of 61 ft (18.6 m) and a deck 36 ft wide.

Who owns Old SR 61 over US 41 Nb/Sb?

It is owned by the State Highway Agency.