US Bridges

SR 15 over Silver Creek

Fair

Wabash County, Indiana · 01.42 S SR 114 · Structure no. 004010

Built
1937
88 years old
Condition
Fair
inspected June 2023
Type
Arch - Deck
Concrete
Length
55 ft
1 main span
Daily traffic
4,014
2019 count
Owner
State
State Highway Agency

About this bridge

SR 15 over Silver Creek is a concrete arch - deck carrying SR 15 over Silver Creek in Wabash County, Indiana. It was built in 1937, so it is 88 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 4,014 vehicles a day, roughly 19% of them trucks, projected to reach 5,711 by 2030. The structure is 55 ft (16.7 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 15
CrossesSilver Creek
Location01.42 S SR 114
RouteState Highway 15
CountyWabash County
StateIndiana
Coordinates40.97926, -85.89178
Functional classRural Minor 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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.5 US tons
Inventory rating29.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length55 ft (16.7 m)
Longest span40 ft (12.1 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,014 (2019)
Projected traffic5,711 by 2030
Trucks19%
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 Silver Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is SR 15 over Silver 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 Silver Creek carry?

About 4,014 vehicles per day (2019 count), of which roughly 19% are trucks.

How long is SR 15 over Silver Creek?

The structure is 55 ft (16.7 m) long with a longest span of 40 ft (12.1 m) and a deck 34 ft wide.

Who owns SR 15 over Silver Creek?

It is owned by the State Highway Agency.