US Bridges

US 41 over Rock Run

Good

Parke County, Indiana · 03.39 S US 36 · Structure no. 015090

Built
1999
26 years old, rebuilt 2020
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
159 ft
3 main spans
Daily traffic
4,296
2020 count
Owner
State
State Highway Agency

About this bridge

US 41 over Rock Run is a prestressed concrete continuous stringer/multi-beam or girder carrying US 41 over Rock Run in Parke County, Indiana. It was built in 1999 and reconstructed in 2020, so it is 26 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,296 vehicles a day, roughly 6% of them trucks, projected to reach 6,148 by 2030. The structure is 159 ft (48.4 m) long and 40 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesUS 41
CrossesRock Run
Location03.39 S US 36
RouteU.S. Route 41
CountyParke County
StateIndiana
Coordinates39.73223, -87.2849
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length159 ft (48.4 m)
Longest span56 ft (17.2 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,296 (2020)
Projected traffic6,148 by 2030
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 US 41 over Rock Run built?

It was built in 1999, making it 26 years old in 2025. It was reconstructed in 2020.

What condition is US 41 over Rock Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does US 41 over Rock Run carry?

About 4,296 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is US 41 over Rock Run?

The structure is 159 ft (48.4 m) long with a longest span of 56 ft (17.2 m) and a deck 40 ft wide.

Who owns US 41 over Rock Run?

It is owned by the State Highway Agency.