US Bridges

I-69 NB over NS RR CR 450 N

Good

Grant County, Indiana · 04.65 N SR 18 · Structure no. 039830

Built
1963
62 years old, rebuilt 2019
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
260 ft
4 main spans
Daily traffic
15,535
2019 count
Owner
State
State Highway Agency

About this bridge

I-69 NB over NS RR CR 450 N is a steel continuous stringer/multi-beam or girder carrying I-69 NB over NS RR CR 450 N in Grant County, Indiana. It was built in 1963 and reconstructed in 2019, so it is 62 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,535 vehicles a day, roughly 41% of them trucks, projected to reach 19,575 by 2039. The structure is 260 ft (79.3 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesI-69 NB
CrossesNS RR CR 450 N
Location04.65 N SR 18
RouteInterstate 69
StateIndiana
Coordinates40.61649, -85.53127
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length260 ft (79.3 m)
Longest span81 ft (24.6 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,535 (2019)
Projected traffic19,575 by 2039
Trucks41%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-69 NB over NS RR CR 450 N built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2019.

What condition is I-69 NB over NS RR CR 450 N in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does I-69 NB over NS RR CR 450 N carry?

About 15,535 vehicles per day (2019 count), of which roughly 41% are trucks.

How long is I-69 NB over NS RR CR 450 N?

The structure is 260 ft (79.3 m) long with a longest span of 81 ft (24.6 m) and a deck 42 ft wide.

Who owns I-69 NB over NS RR CR 450 N?

It is owned by the State Highway Agency.