US Bridges

Knightstown Road over I-74 Eb/Wb

Fair

Shelby County, Indiana · 01.34 E SR 9 · Structure no. 044840

Built
1959
66 years old, rebuilt 2020
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
220 ft
2 main spans
Daily traffic
1,320
2019 count
Owner
State
State Highway Agency

About this bridge

Knightstown Road over I-74 Eb/Wb is a steel continuous stringer/multi-beam or girder carrying Knightstown Road over I-74 Eb/Wb in Shelby County, Indiana. It was built in 1959 and reconstructed in 2020, so it is 66 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 1,320 vehicles a day, roughly 20% of them trucks, projected to reach 1,320 by 2039. The structure is 220 ft (67 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesKnightstown Road
CrossesI-74 Eb/Wb
Location01.34 E SR 9
RouteCity Street 0
CountyShelby County
StateIndiana
Coordinates39.53954, -85.7553
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length220 ft (67 m)
Longest span69 ft (21 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,320 (2019)
Projected traffic1,320 by 2039
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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 Knightstown Road over I-74 Eb/Wb built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2020.

What condition is Knightstown Road over I-74 Eb/Wb 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 2023.

How much traffic does Knightstown Road over I-74 Eb/Wb carry?

About 1,320 vehicles per day (2019 count), of which roughly 20% are trucks.

How long is Knightstown Road over I-74 Eb/Wb?

The structure is 220 ft (67 m) long with a longest span of 69 ft (21 m) and a deck 33 ft wide.

Who owns Knightstown Road over I-74 Eb/Wb?

It is owned by the State Highway Agency.