US Bridges

SR 64 over Rock Creek

Fair

Dubois County, Indiana · 01.93 W SR 161 · Structure no. 022960

Built
1947
78 years old, rebuilt 1985
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
99 ft
4 main spans
Daily traffic
2,808
2019 count
Owner
State
State Highway Agency

About this bridge

SR 64 over Rock Creek is a concrete continuous slab carrying SR 64 over Rock Creek in Dubois County, Indiana. It was built in 1947 and reconstructed in 1985, so it is 78 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 2,808 vehicles a day, roughly 19% of them trucks, projected to reach 3,677 by 2039. The structure is 99 ft (30.1 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 64
CrossesRock Creek
Location01.93 W SR 161
RouteState Highway 64
CountyDubois County
StateIndiana
Coordinates38.30366, -87.06956
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length99 ft (30.1 m)
Longest span28 ft (8.5 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,808 (2019)
Projected traffic3,677 by 2039
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$326,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 64 over Rock Creek built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1985.

What condition is SR 64 over Rock 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 2024.

How much traffic does SR 64 over Rock Creek carry?

About 2,808 vehicles per day (2019 count), of which roughly 19% are trucks.

How long is SR 64 over Rock Creek?

The structure is 99 ft (30.1 m) long with a longest span of 28 ft (8.5 m) and a deck 31 ft wide.

Who owns SR 64 over Rock Creek?

It is owned by the State Highway Agency.