US Bridges

SR 15 over Lones Ditch

Fair

Kosciusko County, Indiana · 00.25 S US 30 · Structure no. 004070

Built
1953
72 years old, rebuilt 1995
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
15,569
2020 count
Owner
State
State Highway Agency

About this bridge

SR 15 over Lones Ditch is a prestressed concrete box beam or girders - multiple carrying SR 15 over Lones Ditch in Kosciusko County, Indiana. It was built in 1953 and reconstructed in 1995, so it is 72 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 6 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 15,569 vehicles a day, roughly 6% of them trucks, projected to reach 25,967 by 2030. The structure is 46 ft (14 m) long and 80 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesSR 15
CrossesLones Ditch
Location00.25 S US 30
RouteState Highway 15
CountyKosciusko County
StateIndiana
Coordinates41.26278, -85.85243
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
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 rating65.4 US tons
Inventory rating50.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span44 ft (13.3 m)
Deck width80 ft (24.3 m)
Roadway width67 ft (20.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,569 (2020)
Projected traffic25,967 by 2030
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5.6 mi (9 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 Lones Ditch built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1995.

What condition is SR 15 over Lones Ditch 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 Lones Ditch carry?

About 15,569 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is SR 15 over Lones Ditch?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.3 m) and a deck 80 ft wide.

Who owns SR 15 over Lones Ditch?

It is owned by the State Highway Agency.