US Bridges

SR 15 over Walnut Creek

Fair

Kosciusko County, Indiana · 02.24 S SR 25 · Structure no. 004050

Built
1928
97 years old, rebuilt 1993
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
53 ft
2 main spans
Daily traffic
10,947
2018 count
Owner
State
State Highway Agency

About this bridge

SR 15 over Walnut Creek is a concrete continuous slab carrying SR 15 over Walnut Creek in Kosciusko County, Indiana. It was built in 1928 and reconstructed in 1993, so it is 97 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 10,947 vehicles a day, roughly 21% of them trucks, projected to reach 13,846 by 2030. The structure is 53 ft (16.1 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 15
CrossesWalnut Creek
Location02.24 S SR 25
RouteState Highway 15
CountyKosciusko County
StateIndiana
Coordinates41.20511, -85.86985
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating47.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length53 ft (16.1 m)
Longest span26 ft (7.8 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,947 (2018)
Projected traffic13,846 by 2030
Trucks21%
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 15 over Walnut Creek built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1993.

What condition is SR 15 over Walnut 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 June 2023.

How much traffic does SR 15 over Walnut Creek carry?

About 10,947 vehicles per day (2018 count), of which roughly 21% are trucks.

How long is SR 15 over Walnut Creek?

The structure is 53 ft (16.1 m) long with a longest span of 26 ft (7.8 m) and a deck 46 ft wide.

Who owns SR 15 over Walnut Creek?

It is owned by the State Highway Agency.