US Bridges

SR 39 over Grassy Fork

Fair

Jackson County, Indiana · 03.73 N SR 256 · Structure no. 013080

Built
1970
55 years old, rebuilt 1980
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
88 ft
3 main spans
Daily traffic
1,043
2004 count
Owner
State
State Highway Agency

About this bridge

SR 39 over Grassy Fork is a prestressed concrete box beam or girders - multiple carrying SR 39 over Grassy Fork in Jackson County, Indiana. It was built in 1970 and reconstructed in 1980, so it is 55 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 1,043 vehicles a day, roughly 10% of them trucks, projected to reach 1,829 by 2031. The structure is 88 ft (26.8 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 39
CrossesGrassy Fork
Location03.73 N SR 256
RouteState Highway 39
CountyJackson County
StateIndiana
Coordinates38.79678, -85.95347
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment6: Equal to present minimum criteria
Operating rating43.2 US tons
Inventory rating33.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span40 ft (12.1 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,043 (2004)
Projected traffic1,829 by 2031
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 39 over Grassy Fork built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1980.

What condition is SR 39 over Grassy Fork 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 October 2023.

How much traffic does SR 39 over Grassy Fork carry?

About 1,043 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is SR 39 over Grassy Fork?

The structure is 88 ft (26.8 m) long with a longest span of 40 ft (12.1 m) and a deck 31 ft wide.

Who owns SR 39 over Grassy Fork?

It is owned by the State Highway Agency.