US Bridges

I-69 NB over Walnut Creek

Good

Grant County, Indiana · 01.20 N US 35 · Structure no. 039680

Built
1963
62 years old, rebuilt 2021
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
14,321
2022 count
Owner
State
State Highway Agency

About this bridge

I-69 NB over Walnut Creek is a concrete continuous slab carrying I-69 NB over Walnut Creek in Grant County, Indiana. It was built in 1963 and reconstructed in 2021, 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,321 vehicles a day, roughly 38% of them trucks, projected to reach 19,820 by 2040. The structure is 102 ft (31 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-69 NB
CrossesWalnut Creek
Location01.20 N US 35
RouteInterstate 69
CountyGrant County
StateIndiana
Coordinates40.49805, -85.54906
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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length102 ft (31 m)
Longest span39 ft (12 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,321 (2022)
Projected traffic19,820 by 2040
Trucks38%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-69 NB over Walnut Creek built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2021.

What condition is I-69 NB over Walnut Creek 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 February 2023.

How much traffic does I-69 NB over Walnut Creek carry?

About 14,321 vehicles per day (2022 count), of which roughly 38% are trucks.

How long is I-69 NB over Walnut Creek?

The structure is 102 ft (31 m) long with a longest span of 39 ft (12 m) and a deck 43 ft wide.

Who owns I-69 NB over Walnut Creek?

It is owned by the State Highway Agency.