US Bridges

US 31 SB over Youngs Creek

Fair

Johnson County, Indiana · 02.61 S SR 44 · Structure no. 009380

Built
1946
79 years old, rebuilt 1978
Condition
Fair
inspected October 2024
Type
Arch - Deck
Concrete
Length
205 ft
2 main spans
Daily traffic
5,321
2022 count
Owner
State
State Highway Agency

About this bridge

US 31 SB over Youngs Creek is a concrete arch - deck carrying US 31 SB over Youngs Creek in Johnson County, Indiana. It was built in 1946 and reconstructed in 1978, so it is 79 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,321 vehicles a day, roughly 10% of them trucks, projected to reach 10,603 by 2031. The structure is 205 ft (62.4 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS 31 SB
CrossesYoungs Creek
Location02.61 S SR 44
RouteU.S. Route 31
CountyJohnson County
StateIndiana
Coordinates39.45074, -86.03449
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating46.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length205 ft (62.4 m)
Longest span65 ft (19.8 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,321 (2022)
Projected traffic10,603 by 2031
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 US 31 SB over Youngs Creek built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1978.

What condition is US 31 SB over Youngs Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does US 31 SB over Youngs Creek carry?

About 5,321 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is US 31 SB over Youngs Creek?

The structure is 205 ft (62.4 m) long with a longest span of 65 ft (19.8 m) and a deck 34 ft wide.

Who owns US 31 SB over Youngs Creek?

It is owned by the State Highway Agency.