US Bridges

61st Avenue over Deep River

Good

Lake County, Indiana · 00.40 W of Wisconsin Stre · Structure no. 4500096

Built
1961
64 years old, rebuilt 2016
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
10,534
2018 count
Owner
County
County Highway Agency

About this bridge

61st Avenue over Deep River is a prestressed concrete box beam or girders - single or spread carrying 61st Avenue over Deep River in Lake County, Indiana. It was built in 1961 and reconstructed in 2016, so it is 64 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 10,534 vehicles a day, roughly 5% of them trucks, projected to reach 12,854 by 2038. The structure is 65 ft (19.9 m) long and 58 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Carries61st Avenue
CrossesDeep River
Location00.40 W of Wisconsin Stre
RouteCity Street 0
StateIndiana
Coordinates41.5083, -87.27647
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating38.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length65 ft (19.9 m)
Longest span62 ft (18.8 m)
Deck width58 ft (17.7 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,534 (2018)
Projected traffic12,854 by 2038
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 61st Avenue over Deep River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2016.

What condition is 61st Avenue over Deep River 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 August 2024.

How much traffic does 61st Avenue over Deep River carry?

About 10,534 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is 61st Avenue over Deep River?

The structure is 65 ft (19.9 m) long with a longest span of 62 ft (18.8 m) and a deck 58 ft wide.

Who owns 61st Avenue over Deep River?

It is owned by the County Highway Agency.