US Bridges

SR 47 over Prairie Creek

Fair

Boone County, Indiana · 00.48 N SR 75 · Structure no. 017680

Built
1981
44 years old, rebuilt 2002
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
178 ft
5 main spans
Daily traffic
3,976
2021 count
Owner
State
State Highway Agency

About this bridge

SR 47 over Prairie Creek is a concrete continuous slab carrying SR 47 over Prairie Creek in Boone County, Indiana. It was built in 1981 and reconstructed in 2002, so it is 44 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 3,976 vehicles a day, roughly 9% of them trucks, projected to reach 8,368 by 2030. The structure is 178 ft (54.2 m) long and 46 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 47
CrossesPrairie Creek
Location00.48 N SR 75
RouteState Highway 47
CountyBoone County
StateIndiana
Coordinates40.12939, -86.60035
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length178 ft (54.2 m)
Longest span41 ft (12.4 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,976 (2021)
Projected traffic8,368 by 2030
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 47 over Prairie Creek built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2002.

What condition is SR 47 over Prairie 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 March 2023.

How much traffic does SR 47 over Prairie Creek carry?

About 3,976 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is SR 47 over Prairie Creek?

The structure is 178 ft (54.2 m) long with a longest span of 41 ft (12.4 m) and a deck 46 ft wide.

Who owns SR 47 over Prairie Creek?

It is owned by the State Highway Agency.