US Bridges

I-69 NB over Green Lake

Good

Steuben County, Indiana · 00.14 S SR 120 · Structure no. 040940

Built
1966
59 years old, rebuilt 2005
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
1,235 ft
2 main spans
Daily traffic
7,832
2020 count
Owner
State
State Highway Agency

About this bridge

I-69 NB over Green Lake is a concrete continuous slab carrying I-69 NB over Green Lake in Steuben County, Indiana. It was built in 1966 and reconstructed in 2005, so it is 59 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 7,832 vehicles a day, roughly 34% of them trucks, projected to reach 16,700 by 2033. The structure is 1,235 ft (376.4 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-69 NB
CrossesGreen Lake
Location00.14 S SR 120
RouteInterstate 69
CountySteuben County
StateIndiana
Coordinates41.72689, -85.0001
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.7 US tons
Inventory rating41.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+36 approach)
Design loadHS 20 + Mod
Structure length1,235 ft (376.4 m)
Longest span33 ft (10.2 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,832 (2020)
Projected traffic16,700 by 2033
Trucks34%
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 Green Lake built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2005.

What condition is I-69 NB over Green Lake 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 April 2023.

How much traffic does I-69 NB over Green Lake carry?

About 7,832 vehicles per day (2020 count), of which roughly 34% are trucks.

How long is I-69 NB over Green Lake?

The structure is 1,235 ft (376.4 m) long with a longest span of 33 ft (10.2 m) and a deck 45 ft wide.

Who owns I-69 NB over Green Lake?

It is owned by the State Highway Agency.