US Bridges

SR 39 over Harp Ditch #3

Fair

Pulaski County, Indiana · 04.03 N SR 16 · Structure no. 013410

Built
1950
75 years old, rebuilt 2017
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
37 ft
1 main span
Daily traffic
1,288
2016 count
Owner
State
State Highway Agency

About this bridge

SR 39 over Harp Ditch #3 is a concrete stringer/multi-beam or girder carrying SR 39 over Harp Ditch #3 in Pulaski County, Indiana. It was built in 1950 and reconstructed in 2017, so it is 75 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 1,288 vehicles a day, roughly 25% of them trucks, projected to reach 1,571 by 2036. The structure is 37 ft (11.4 m) long and 31 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesSR 39
CrossesHarp Ditch #3
Location04.03 N SR 16
RouteState Highway 39
CountyPulaski County
StateIndiana
Coordinates40.94216, -86.77636
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length37 ft (11.4 m)
Longest span36 ft (10.9 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,288 (2016)
Projected traffic1,571 by 2036
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Harp Ditch #3 built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2017.

What condition is SR 39 over Harp Ditch #3 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 39 over Harp Ditch #3 carry?

About 1,288 vehicles per day (2016 count), of which roughly 25% are trucks.

How long is SR 39 over Harp Ditch #3?

The structure is 37 ft (11.4 m) long with a longest span of 36 ft (10.9 m) and a deck 31 ft wide.

Who owns SR 39 over Harp Ditch #3?

It is owned by the State Highway Agency.