US Bridges

SR 75 over Wiley Creek

Fair

Boone County, Indiana · 02.30 N SR 32 · Structure no. 024900

Built
1996
29 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
1,320
2014 count
Owner
State
State Highway Agency

About this bridge

SR 75 over Wiley Creek is a concrete slab carrying SR 75 over Wiley Creek in Boone 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 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 1,320 vehicles a day, roughly 10% of them trucks, projected to reach 2,568 by 2032. The structure is 26 ft (7.9 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 75
CrossesWiley Creek
Location02.30 N SR 32
RouteState Highway 75
CountyBoone County
StateIndiana
Coordinates40.08777, -86.61959
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating60.1 US tons
Inventory rating35.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,320 (2014)
Projected traffic2,568 by 2032
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 75 over Wiley Creek built?

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

What condition is SR 75 over Wiley 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 December 2023.

How much traffic does SR 75 over Wiley Creek carry?

About 1,320 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is SR 75 over Wiley Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 35 ft wide.

Who owns SR 75 over Wiley Creek?

It is owned by the State Highway Agency.