US Bridges

SR 46 over Big Slough Creek

Good

Clay County, Indiana · 04.04 E SR 159 · Structure no. 016980

Built
1996
29 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
3,903
2020 count
Owner
State
State Highway Agency

About this bridge

SR 46 over Big Slough Creek is a concrete continuous slab carrying SR 46 over Big Slough Creek in Clay County, Indiana. It was built in 1996, so it is 29 years old, younger 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 3,903 vehicles a day, roughly 10% of them trucks, projected to reach 4,040 by 2040. The structure is 82 ft (24.9 m) long and 48 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSR 46
CrossesBig Slough Creek
Location04.04 E SR 159
RouteState Highway 46
StateIndiana
Coordinates39.38992, -87.23123
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length82 ft (24.9 m)
Longest span31 ft (9.6 m)
Deck width48 ft (14.7 m)
Roadway width45 ft (13.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,903 (2020)
Projected traffic4,040 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 46 over Big Slough Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is SR 46 over Big Slough 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 2024.

How much traffic does SR 46 over Big Slough Creek carry?

About 3,903 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is SR 46 over Big Slough Creek?

The structure is 82 ft (24.9 m) long with a longest span of 31 ft (9.6 m) and a deck 48 ft wide.

Who owns SR 46 over Big Slough Creek?

It is owned by the State Highway Agency.